Toniolo and Linder, Equation (10+)

Percentage Accurate: 52.8% → 74.7%
Time: 32.9s
Alternatives: 23
Speedup: 3.8×

Specification

?
\[\begin{array}{l} \\ \frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)} \end{array} \]
(FPCore (t l k)
 :precision binary64
 (/
  2.0
  (*
   (* (* (/ (pow t 3.0) (* l l)) (sin k)) (tan k))
   (+ (+ 1.0 (pow (/ k t) 2.0)) 1.0))))
double code(double t, double l, double k) {
	return 2.0 / ((((pow(t, 3.0) / (l * l)) * sin(k)) * tan(k)) * ((1.0 + pow((k / t), 2.0)) + 1.0));
}
real(8) function code(t, l, k)
    real(8), intent (in) :: t
    real(8), intent (in) :: l
    real(8), intent (in) :: k
    code = 2.0d0 / (((((t ** 3.0d0) / (l * l)) * sin(k)) * tan(k)) * ((1.0d0 + ((k / t) ** 2.0d0)) + 1.0d0))
end function
public static double code(double t, double l, double k) {
	return 2.0 / ((((Math.pow(t, 3.0) / (l * l)) * Math.sin(k)) * Math.tan(k)) * ((1.0 + Math.pow((k / t), 2.0)) + 1.0));
}
def code(t, l, k):
	return 2.0 / ((((math.pow(t, 3.0) / (l * l)) * math.sin(k)) * math.tan(k)) * ((1.0 + math.pow((k / t), 2.0)) + 1.0))
function code(t, l, k)
	return Float64(2.0 / Float64(Float64(Float64(Float64((t ^ 3.0) / Float64(l * l)) * sin(k)) * tan(k)) * Float64(Float64(1.0 + (Float64(k / t) ^ 2.0)) + 1.0)))
end
function tmp = code(t, l, k)
	tmp = 2.0 / (((((t ^ 3.0) / (l * l)) * sin(k)) * tan(k)) * ((1.0 + ((k / t) ^ 2.0)) + 1.0));
end
code[t_, l_, k_] := N[(2.0 / N[(N[(N[(N[(N[Power[t, 3.0], $MachinePrecision] / N[(l * l), $MachinePrecision]), $MachinePrecision] * N[Sin[k], $MachinePrecision]), $MachinePrecision] * N[Tan[k], $MachinePrecision]), $MachinePrecision] * N[(N[(1.0 + N[Power[N[(k / t), $MachinePrecision], 2.0], $MachinePrecision]), $MachinePrecision] + 1.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)}
\end{array}

Sampling outcomes in binary64 precision:

Local Percentage Accuracy vs ?

The average percentage accuracy by input value. Horizontal axis shows value of an input variable; the variable is choosen in the title. Vertical axis is accuracy; higher is better. Red represent the original program, while blue represents Herbie's suggestion. These can be toggled with buttons below the plot. The line is an average while dots represent individual samples.

Accuracy vs Speed?

Herbie found 23 alternatives:

AlternativeAccuracySpeedup
The accuracy (vertical axis) and speed (horizontal axis) of each alternatives. Up and to the right is better. The red square shows the initial program, and each blue circle shows an alternative.The line shows the best available speed-accuracy tradeoffs.

Initial Program: 52.8% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)} \end{array} \]
(FPCore (t l k)
 :precision binary64
 (/
  2.0
  (*
   (* (* (/ (pow t 3.0) (* l l)) (sin k)) (tan k))
   (+ (+ 1.0 (pow (/ k t) 2.0)) 1.0))))
double code(double t, double l, double k) {
	return 2.0 / ((((pow(t, 3.0) / (l * l)) * sin(k)) * tan(k)) * ((1.0 + pow((k / t), 2.0)) + 1.0));
}
real(8) function code(t, l, k)
    real(8), intent (in) :: t
    real(8), intent (in) :: l
    real(8), intent (in) :: k
    code = 2.0d0 / (((((t ** 3.0d0) / (l * l)) * sin(k)) * tan(k)) * ((1.0d0 + ((k / t) ** 2.0d0)) + 1.0d0))
end function
public static double code(double t, double l, double k) {
	return 2.0 / ((((Math.pow(t, 3.0) / (l * l)) * Math.sin(k)) * Math.tan(k)) * ((1.0 + Math.pow((k / t), 2.0)) + 1.0));
}
def code(t, l, k):
	return 2.0 / ((((math.pow(t, 3.0) / (l * l)) * math.sin(k)) * math.tan(k)) * ((1.0 + math.pow((k / t), 2.0)) + 1.0))
function code(t, l, k)
	return Float64(2.0 / Float64(Float64(Float64(Float64((t ^ 3.0) / Float64(l * l)) * sin(k)) * tan(k)) * Float64(Float64(1.0 + (Float64(k / t) ^ 2.0)) + 1.0)))
end
function tmp = code(t, l, k)
	tmp = 2.0 / (((((t ^ 3.0) / (l * l)) * sin(k)) * tan(k)) * ((1.0 + ((k / t) ^ 2.0)) + 1.0));
end
code[t_, l_, k_] := N[(2.0 / N[(N[(N[(N[(N[Power[t, 3.0], $MachinePrecision] / N[(l * l), $MachinePrecision]), $MachinePrecision] * N[Sin[k], $MachinePrecision]), $MachinePrecision] * N[Tan[k], $MachinePrecision]), $MachinePrecision] * N[(N[(1.0 + N[Power[N[(k / t), $MachinePrecision], 2.0], $MachinePrecision]), $MachinePrecision] + 1.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)}
\end{array}

Alternative 1: 74.7% accurate, 0.4× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := {\left(\frac{k}{t}\right)}^{2}\\ t_2 := \frac{t}{\sqrt[3]{\frac{\ell \cdot \ell}{\sin k}}}\\ \mathbf{if}\;\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(1 + \left(1 + t_1\right)\right)} \leq 10^{+26}:\\ \;\;\;\;\frac{\frac{\frac{2}{\tan k}}{t_2 \cdot {t_2}^{2}}}{2 + t_1}\\ \mathbf{else}:\\ \;\;\;\;\frac{2}{{\sin k}^{2}} \cdot \left(\frac{\frac{\cos k}{\frac{k}{\ell}}}{t} \cdot \frac{\ell}{k}\right)\\ \end{array} \end{array} \]
(FPCore (t l k)
 :precision binary64
 (let* ((t_1 (pow (/ k t) 2.0)) (t_2 (/ t (cbrt (/ (* l l) (sin k))))))
   (if (<=
        (/
         2.0
         (*
          (* (* (/ (pow t 3.0) (* l l)) (sin k)) (tan k))
          (+ 1.0 (+ 1.0 t_1))))
        1e+26)
     (/ (/ (/ 2.0 (tan k)) (* t_2 (pow t_2 2.0))) (+ 2.0 t_1))
     (* (/ 2.0 (pow (sin k) 2.0)) (* (/ (/ (cos k) (/ k l)) t) (/ l k))))))
double code(double t, double l, double k) {
	double t_1 = pow((k / t), 2.0);
	double t_2 = t / cbrt(((l * l) / sin(k)));
	double tmp;
	if ((2.0 / ((((pow(t, 3.0) / (l * l)) * sin(k)) * tan(k)) * (1.0 + (1.0 + t_1)))) <= 1e+26) {
		tmp = ((2.0 / tan(k)) / (t_2 * pow(t_2, 2.0))) / (2.0 + t_1);
	} else {
		tmp = (2.0 / pow(sin(k), 2.0)) * (((cos(k) / (k / l)) / t) * (l / k));
	}
	return tmp;
}
public static double code(double t, double l, double k) {
	double t_1 = Math.pow((k / t), 2.0);
	double t_2 = t / Math.cbrt(((l * l) / Math.sin(k)));
	double tmp;
	if ((2.0 / ((((Math.pow(t, 3.0) / (l * l)) * Math.sin(k)) * Math.tan(k)) * (1.0 + (1.0 + t_1)))) <= 1e+26) {
		tmp = ((2.0 / Math.tan(k)) / (t_2 * Math.pow(t_2, 2.0))) / (2.0 + t_1);
	} else {
		tmp = (2.0 / Math.pow(Math.sin(k), 2.0)) * (((Math.cos(k) / (k / l)) / t) * (l / k));
	}
	return tmp;
}
function code(t, l, k)
	t_1 = Float64(k / t) ^ 2.0
	t_2 = Float64(t / cbrt(Float64(Float64(l * l) / sin(k))))
	tmp = 0.0
	if (Float64(2.0 / Float64(Float64(Float64(Float64((t ^ 3.0) / Float64(l * l)) * sin(k)) * tan(k)) * Float64(1.0 + Float64(1.0 + t_1)))) <= 1e+26)
		tmp = Float64(Float64(Float64(2.0 / tan(k)) / Float64(t_2 * (t_2 ^ 2.0))) / Float64(2.0 + t_1));
	else
		tmp = Float64(Float64(2.0 / (sin(k) ^ 2.0)) * Float64(Float64(Float64(cos(k) / Float64(k / l)) / t) * Float64(l / k)));
	end
	return tmp
end
code[t_, l_, k_] := Block[{t$95$1 = N[Power[N[(k / t), $MachinePrecision], 2.0], $MachinePrecision]}, Block[{t$95$2 = N[(t / N[Power[N[(N[(l * l), $MachinePrecision] / N[Sin[k], $MachinePrecision]), $MachinePrecision], 1/3], $MachinePrecision]), $MachinePrecision]}, If[LessEqual[N[(2.0 / N[(N[(N[(N[(N[Power[t, 3.0], $MachinePrecision] / N[(l * l), $MachinePrecision]), $MachinePrecision] * N[Sin[k], $MachinePrecision]), $MachinePrecision] * N[Tan[k], $MachinePrecision]), $MachinePrecision] * N[(1.0 + N[(1.0 + t$95$1), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], 1e+26], N[(N[(N[(2.0 / N[Tan[k], $MachinePrecision]), $MachinePrecision] / N[(t$95$2 * N[Power[t$95$2, 2.0], $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(2.0 + t$95$1), $MachinePrecision]), $MachinePrecision], N[(N[(2.0 / N[Power[N[Sin[k], $MachinePrecision], 2.0], $MachinePrecision]), $MachinePrecision] * N[(N[(N[(N[Cos[k], $MachinePrecision] / N[(k / l), $MachinePrecision]), $MachinePrecision] / t), $MachinePrecision] * N[(l / k), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := {\left(\frac{k}{t}\right)}^{2}\\
t_2 := \frac{t}{\sqrt[3]{\frac{\ell \cdot \ell}{\sin k}}}\\
\mathbf{if}\;\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(1 + \left(1 + t_1\right)\right)} \leq 10^{+26}:\\
\;\;\;\;\frac{\frac{\frac{2}{\tan k}}{t_2 \cdot {t_2}^{2}}}{2 + t_1}\\

\mathbf{else}:\\
\;\;\;\;\frac{2}{{\sin k}^{2}} \cdot \left(\frac{\frac{\cos k}{\frac{k}{\ell}}}{t} \cdot \frac{\ell}{k}\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if (/.f64 2 (*.f64 (*.f64 (*.f64 (/.f64 (pow.f64 t 3) (*.f64 l l)) (sin.f64 k)) (tan.f64 k)) (+.f64 (+.f64 1 (pow.f64 (/.f64 k t) 2)) 1))) < 1.00000000000000005e26

    1. Initial program 72.6%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)} \]
    2. Step-by-step derivation
      1. associate-/r*72.7%

        \[\leadsto \color{blue}{\frac{\frac{2}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1}} \]
      2. associate-*l*67.2%

        \[\leadsto \frac{\frac{2}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      3. sqr-neg67.2%

        \[\leadsto \frac{\frac{2}{\frac{{t}^{3}}{\color{blue}{\left(-\ell\right) \cdot \left(-\ell\right)}} \cdot \left(\sin k \cdot \tan k\right)}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      4. associate-*l*72.7%

        \[\leadsto \frac{\frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\left(-\ell\right) \cdot \left(-\ell\right)} \cdot \sin k\right) \cdot \tan k}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      5. *-commutative72.7%

        \[\leadsto \frac{\frac{2}{\color{blue}{\tan k \cdot \left(\frac{{t}^{3}}{\left(-\ell\right) \cdot \left(-\ell\right)} \cdot \sin k\right)}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      6. sqr-neg72.7%

        \[\leadsto \frac{\frac{2}{\tan k \cdot \left(\frac{{t}^{3}}{\color{blue}{\ell \cdot \ell}} \cdot \sin k\right)}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      7. associate-/r*72.7%

        \[\leadsto \frac{\color{blue}{\frac{\frac{2}{\tan k}}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
    3. Simplified73.7%

      \[\leadsto \color{blue}{\frac{\frac{\frac{2}{\tan k}}{\frac{{t}^{3}}{\frac{\ell \cdot \ell}{\sin k}}}}{2 + {\left(\frac{k}{t}\right)}^{2}}} \]
    4. Step-by-step derivation
      1. add-cube-cbrt73.6%

        \[\leadsto \frac{\frac{\frac{2}{\tan k}}{\color{blue}{\left(\sqrt[3]{\frac{{t}^{3}}{\frac{\ell \cdot \ell}{\sin k}}} \cdot \sqrt[3]{\frac{{t}^{3}}{\frac{\ell \cdot \ell}{\sin k}}}\right) \cdot \sqrt[3]{\frac{{t}^{3}}{\frac{\ell \cdot \ell}{\sin k}}}}}}{2 + {\left(\frac{k}{t}\right)}^{2}} \]
      2. pow273.6%

        \[\leadsto \frac{\frac{\frac{2}{\tan k}}{\color{blue}{{\left(\sqrt[3]{\frac{{t}^{3}}{\frac{\ell \cdot \ell}{\sin k}}}\right)}^{2}} \cdot \sqrt[3]{\frac{{t}^{3}}{\frac{\ell \cdot \ell}{\sin k}}}}}{2 + {\left(\frac{k}{t}\right)}^{2}} \]
      3. cbrt-div73.6%

        \[\leadsto \frac{\frac{\frac{2}{\tan k}}{{\color{blue}{\left(\frac{\sqrt[3]{{t}^{3}}}{\sqrt[3]{\frac{\ell \cdot \ell}{\sin k}}}\right)}}^{2} \cdot \sqrt[3]{\frac{{t}^{3}}{\frac{\ell \cdot \ell}{\sin k}}}}}{2 + {\left(\frac{k}{t}\right)}^{2}} \]
      4. rem-cbrt-cube73.7%

        \[\leadsto \frac{\frac{\frac{2}{\tan k}}{{\left(\frac{\color{blue}{t}}{\sqrt[3]{\frac{\ell \cdot \ell}{\sin k}}}\right)}^{2} \cdot \sqrt[3]{\frac{{t}^{3}}{\frac{\ell \cdot \ell}{\sin k}}}}}{2 + {\left(\frac{k}{t}\right)}^{2}} \]
      5. cbrt-div73.7%

        \[\leadsto \frac{\frac{\frac{2}{\tan k}}{{\left(\frac{t}{\sqrt[3]{\frac{\ell \cdot \ell}{\sin k}}}\right)}^{2} \cdot \color{blue}{\frac{\sqrt[3]{{t}^{3}}}{\sqrt[3]{\frac{\ell \cdot \ell}{\sin k}}}}}}{2 + {\left(\frac{k}{t}\right)}^{2}} \]
      6. rem-cbrt-cube79.7%

        \[\leadsto \frac{\frac{\frac{2}{\tan k}}{{\left(\frac{t}{\sqrt[3]{\frac{\ell \cdot \ell}{\sin k}}}\right)}^{2} \cdot \frac{\color{blue}{t}}{\sqrt[3]{\frac{\ell \cdot \ell}{\sin k}}}}}{2 + {\left(\frac{k}{t}\right)}^{2}} \]
    5. Applied egg-rr79.7%

      \[\leadsto \frac{\frac{\frac{2}{\tan k}}{\color{blue}{{\left(\frac{t}{\sqrt[3]{\frac{\ell \cdot \ell}{\sin k}}}\right)}^{2} \cdot \frac{t}{\sqrt[3]{\frac{\ell \cdot \ell}{\sin k}}}}}}{2 + {\left(\frac{k}{t}\right)}^{2}} \]

    if 1.00000000000000005e26 < (/.f64 2 (*.f64 (*.f64 (*.f64 (/.f64 (pow.f64 t 3) (*.f64 l l)) (sin.f64 k)) (tan.f64 k)) (+.f64 (+.f64 1 (pow.f64 (/.f64 k t) 2)) 1)))

    1. Initial program 21.8%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)} \]
    2. Taylor expanded in t around 0 53.8%

      \[\leadsto \frac{2}{\color{blue}{\frac{{k}^{2} \cdot \left(t \cdot {\sin k}^{2}\right)}{{\ell}^{2} \cdot \cos k}}} \]
    3. Step-by-step derivation
      1. associate-*r*53.8%

        \[\leadsto \frac{2}{\frac{\color{blue}{\left({k}^{2} \cdot t\right) \cdot {\sin k}^{2}}}{{\ell}^{2} \cdot \cos k}} \]
      2. times-frac54.6%

        \[\leadsto \frac{2}{\color{blue}{\frac{{k}^{2} \cdot t}{{\ell}^{2}} \cdot \frac{{\sin k}^{2}}{\cos k}}} \]
      3. unpow254.6%

        \[\leadsto \frac{2}{\frac{\color{blue}{\left(k \cdot k\right)} \cdot t}{{\ell}^{2}} \cdot \frac{{\sin k}^{2}}{\cos k}} \]
      4. associate-*l*57.6%

        \[\leadsto \frac{2}{\frac{\color{blue}{k \cdot \left(k \cdot t\right)}}{{\ell}^{2}} \cdot \frac{{\sin k}^{2}}{\cos k}} \]
      5. unpow257.6%

        \[\leadsto \frac{2}{\frac{k \cdot \left(k \cdot t\right)}{\color{blue}{\ell \cdot \ell}} \cdot \frac{{\sin k}^{2}}{\cos k}} \]
    4. Simplified57.6%

      \[\leadsto \frac{2}{\color{blue}{\frac{k \cdot \left(k \cdot t\right)}{\ell \cdot \ell} \cdot \frac{{\sin k}^{2}}{\cos k}}} \]
    5. Step-by-step derivation
      1. associate-*r/57.6%

        \[\leadsto \frac{2}{\color{blue}{\frac{\frac{k \cdot \left(k \cdot t\right)}{\ell \cdot \ell} \cdot {\sin k}^{2}}{\cos k}}} \]
      2. times-frac74.5%

        \[\leadsto \frac{2}{\frac{\color{blue}{\left(\frac{k}{\ell} \cdot \frac{k \cdot t}{\ell}\right)} \cdot {\sin k}^{2}}{\cos k}} \]
    6. Applied egg-rr74.5%

      \[\leadsto \frac{2}{\color{blue}{\frac{\left(\frac{k}{\ell} \cdot \frac{k \cdot t}{\ell}\right) \cdot {\sin k}^{2}}{\cos k}}} \]
    7. Taylor expanded in k around inf 53.8%

      \[\leadsto \frac{2}{\frac{\color{blue}{\frac{{k}^{2} \cdot \left(t \cdot {\sin k}^{2}\right)}{{\ell}^{2}}}}{\cos k}} \]
    8. Step-by-step derivation
      1. associate-*r*53.9%

        \[\leadsto \frac{2}{\frac{\frac{\color{blue}{\left({k}^{2} \cdot t\right) \cdot {\sin k}^{2}}}{{\ell}^{2}}}{\cos k}} \]
      2. unpow253.9%

        \[\leadsto \frac{2}{\frac{\frac{\left(\color{blue}{\left(k \cdot k\right)} \cdot t\right) \cdot {\sin k}^{2}}{{\ell}^{2}}}{\cos k}} \]
      3. associate-*r*56.9%

        \[\leadsto \frac{2}{\frac{\frac{\color{blue}{\left(k \cdot \left(k \cdot t\right)\right)} \cdot {\sin k}^{2}}{{\ell}^{2}}}{\cos k}} \]
      4. associate-*l/57.6%

        \[\leadsto \frac{2}{\frac{\color{blue}{\frac{k \cdot \left(k \cdot t\right)}{{\ell}^{2}} \cdot {\sin k}^{2}}}{\cos k}} \]
      5. unpow257.6%

        \[\leadsto \frac{2}{\frac{\frac{k \cdot \left(k \cdot t\right)}{\color{blue}{\ell \cdot \ell}} \cdot {\sin k}^{2}}{\cos k}} \]
      6. *-commutative57.6%

        \[\leadsto \frac{2}{\frac{\color{blue}{{\sin k}^{2} \cdot \frac{k \cdot \left(k \cdot t\right)}{\ell \cdot \ell}}}{\cos k}} \]
      7. times-frac74.5%

        \[\leadsto \frac{2}{\frac{{\sin k}^{2} \cdot \color{blue}{\left(\frac{k}{\ell} \cdot \frac{k \cdot t}{\ell}\right)}}{\cos k}} \]
      8. associate-*l/76.9%

        \[\leadsto \frac{2}{\frac{{\sin k}^{2} \cdot \left(\frac{k}{\ell} \cdot \color{blue}{\left(\frac{k}{\ell} \cdot t\right)}\right)}{\cos k}} \]
      9. *-commutative76.9%

        \[\leadsto \frac{2}{\frac{{\sin k}^{2} \cdot \left(\frac{k}{\ell} \cdot \color{blue}{\left(t \cdot \frac{k}{\ell}\right)}\right)}{\cos k}} \]
    9. Simplified76.9%

      \[\leadsto \frac{2}{\frac{\color{blue}{{\sin k}^{2} \cdot \left(\frac{k}{\ell} \cdot \left(t \cdot \frac{k}{\ell}\right)\right)}}{\cos k}} \]
    10. Step-by-step derivation
      1. div-inv76.9%

        \[\leadsto \color{blue}{2 \cdot \frac{1}{\frac{{\sin k}^{2} \cdot \left(\frac{k}{\ell} \cdot \left(t \cdot \frac{k}{\ell}\right)\right)}{\cos k}}} \]
      2. associate-/l*76.9%

        \[\leadsto 2 \cdot \frac{1}{\color{blue}{\frac{{\sin k}^{2}}{\frac{\cos k}{\frac{k}{\ell} \cdot \left(t \cdot \frac{k}{\ell}\right)}}}} \]
    11. Applied egg-rr76.9%

      \[\leadsto \color{blue}{2 \cdot \frac{1}{\frac{{\sin k}^{2}}{\frac{\cos k}{\frac{k}{\ell} \cdot \left(t \cdot \frac{k}{\ell}\right)}}}} \]
    12. Step-by-step derivation
      1. associate-*r/76.9%

        \[\leadsto \color{blue}{\frac{2 \cdot 1}{\frac{{\sin k}^{2}}{\frac{\cos k}{\frac{k}{\ell} \cdot \left(t \cdot \frac{k}{\ell}\right)}}}} \]
      2. metadata-eval76.9%

        \[\leadsto \frac{\color{blue}{2}}{\frac{{\sin k}^{2}}{\frac{\cos k}{\frac{k}{\ell} \cdot \left(t \cdot \frac{k}{\ell}\right)}}} \]
      3. associate-/r/76.9%

        \[\leadsto \color{blue}{\frac{2}{{\sin k}^{2}} \cdot \frac{\cos k}{\frac{k}{\ell} \cdot \left(t \cdot \frac{k}{\ell}\right)}} \]
      4. associate-/r*77.0%

        \[\leadsto \frac{2}{{\sin k}^{2}} \cdot \color{blue}{\frac{\frac{\cos k}{\frac{k}{\ell}}}{t \cdot \frac{k}{\ell}}} \]
      5. associate-*r/74.5%

        \[\leadsto \frac{2}{{\sin k}^{2}} \cdot \frac{\frac{\cos k}{\frac{k}{\ell}}}{\color{blue}{\frac{t \cdot k}{\ell}}} \]
      6. associate-/l*77.0%

        \[\leadsto \frac{2}{{\sin k}^{2}} \cdot \frac{\frac{\cos k}{\frac{k}{\ell}}}{\color{blue}{\frac{t}{\frac{\ell}{k}}}} \]
      7. associate-/r/77.0%

        \[\leadsto \frac{2}{{\sin k}^{2}} \cdot \color{blue}{\left(\frac{\frac{\cos k}{\frac{k}{\ell}}}{t} \cdot \frac{\ell}{k}\right)} \]
    13. Simplified77.0%

      \[\leadsto \color{blue}{\frac{2}{{\sin k}^{2}} \cdot \left(\frac{\frac{\cos k}{\frac{k}{\ell}}}{t} \cdot \frac{\ell}{k}\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification78.4%

    \[\leadsto \begin{array}{l} \mathbf{if}\;\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(1 + \left(1 + {\left(\frac{k}{t}\right)}^{2}\right)\right)} \leq 10^{+26}:\\ \;\;\;\;\frac{\frac{\frac{2}{\tan k}}{\frac{t}{\sqrt[3]{\frac{\ell \cdot \ell}{\sin k}}} \cdot {\left(\frac{t}{\sqrt[3]{\frac{\ell \cdot \ell}{\sin k}}}\right)}^{2}}}{2 + {\left(\frac{k}{t}\right)}^{2}}\\ \mathbf{else}:\\ \;\;\;\;\frac{2}{{\sin k}^{2}} \cdot \left(\frac{\frac{\cos k}{\frac{k}{\ell}}}{t} \cdot \frac{\ell}{k}\right)\\ \end{array} \]

Alternative 2: 74.8% accurate, 0.4× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := 1 + \left(1 + {\left(\frac{k}{t}\right)}^{2}\right)\\ \mathbf{if}\;\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot t_1} \leq 10^{+26}:\\ \;\;\;\;\frac{2}{t_1 \cdot \left(\tan k \cdot {\left(\frac{t}{\sqrt[3]{\frac{\ell \cdot \ell}{\sin k}}}\right)}^{3}\right)}\\ \mathbf{else}:\\ \;\;\;\;\frac{2}{{\sin k}^{2}} \cdot \left(\frac{\frac{\cos k}{\frac{k}{\ell}}}{t} \cdot \frac{\ell}{k}\right)\\ \end{array} \end{array} \]
(FPCore (t l k)
 :precision binary64
 (let* ((t_1 (+ 1.0 (+ 1.0 (pow (/ k t) 2.0)))))
   (if (<=
        (/ 2.0 (* (* (* (/ (pow t 3.0) (* l l)) (sin k)) (tan k)) t_1))
        1e+26)
     (/ 2.0 (* t_1 (* (tan k) (pow (/ t (cbrt (/ (* l l) (sin k)))) 3.0))))
     (* (/ 2.0 (pow (sin k) 2.0)) (* (/ (/ (cos k) (/ k l)) t) (/ l k))))))
double code(double t, double l, double k) {
	double t_1 = 1.0 + (1.0 + pow((k / t), 2.0));
	double tmp;
	if ((2.0 / ((((pow(t, 3.0) / (l * l)) * sin(k)) * tan(k)) * t_1)) <= 1e+26) {
		tmp = 2.0 / (t_1 * (tan(k) * pow((t / cbrt(((l * l) / sin(k)))), 3.0)));
	} else {
		tmp = (2.0 / pow(sin(k), 2.0)) * (((cos(k) / (k / l)) / t) * (l / k));
	}
	return tmp;
}
public static double code(double t, double l, double k) {
	double t_1 = 1.0 + (1.0 + Math.pow((k / t), 2.0));
	double tmp;
	if ((2.0 / ((((Math.pow(t, 3.0) / (l * l)) * Math.sin(k)) * Math.tan(k)) * t_1)) <= 1e+26) {
		tmp = 2.0 / (t_1 * (Math.tan(k) * Math.pow((t / Math.cbrt(((l * l) / Math.sin(k)))), 3.0)));
	} else {
		tmp = (2.0 / Math.pow(Math.sin(k), 2.0)) * (((Math.cos(k) / (k / l)) / t) * (l / k));
	}
	return tmp;
}
function code(t, l, k)
	t_1 = Float64(1.0 + Float64(1.0 + (Float64(k / t) ^ 2.0)))
	tmp = 0.0
	if (Float64(2.0 / Float64(Float64(Float64(Float64((t ^ 3.0) / Float64(l * l)) * sin(k)) * tan(k)) * t_1)) <= 1e+26)
		tmp = Float64(2.0 / Float64(t_1 * Float64(tan(k) * (Float64(t / cbrt(Float64(Float64(l * l) / sin(k)))) ^ 3.0))));
	else
		tmp = Float64(Float64(2.0 / (sin(k) ^ 2.0)) * Float64(Float64(Float64(cos(k) / Float64(k / l)) / t) * Float64(l / k)));
	end
	return tmp
end
code[t_, l_, k_] := Block[{t$95$1 = N[(1.0 + N[(1.0 + N[Power[N[(k / t), $MachinePrecision], 2.0], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[N[(2.0 / N[(N[(N[(N[(N[Power[t, 3.0], $MachinePrecision] / N[(l * l), $MachinePrecision]), $MachinePrecision] * N[Sin[k], $MachinePrecision]), $MachinePrecision] * N[Tan[k], $MachinePrecision]), $MachinePrecision] * t$95$1), $MachinePrecision]), $MachinePrecision], 1e+26], N[(2.0 / N[(t$95$1 * N[(N[Tan[k], $MachinePrecision] * N[Power[N[(t / N[Power[N[(N[(l * l), $MachinePrecision] / N[Sin[k], $MachinePrecision]), $MachinePrecision], 1/3], $MachinePrecision]), $MachinePrecision], 3.0], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(2.0 / N[Power[N[Sin[k], $MachinePrecision], 2.0], $MachinePrecision]), $MachinePrecision] * N[(N[(N[(N[Cos[k], $MachinePrecision] / N[(k / l), $MachinePrecision]), $MachinePrecision] / t), $MachinePrecision] * N[(l / k), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := 1 + \left(1 + {\left(\frac{k}{t}\right)}^{2}\right)\\
\mathbf{if}\;\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot t_1} \leq 10^{+26}:\\
\;\;\;\;\frac{2}{t_1 \cdot \left(\tan k \cdot {\left(\frac{t}{\sqrt[3]{\frac{\ell \cdot \ell}{\sin k}}}\right)}^{3}\right)}\\

\mathbf{else}:\\
\;\;\;\;\frac{2}{{\sin k}^{2}} \cdot \left(\frac{\frac{\cos k}{\frac{k}{\ell}}}{t} \cdot \frac{\ell}{k}\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if (/.f64 2 (*.f64 (*.f64 (*.f64 (/.f64 (pow.f64 t 3) (*.f64 l l)) (sin.f64 k)) (tan.f64 k)) (+.f64 (+.f64 1 (pow.f64 (/.f64 k t) 2)) 1))) < 1.00000000000000005e26

    1. Initial program 72.6%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)} \]
    2. Step-by-step derivation
      1. associate-/r/73.7%

        \[\leadsto \frac{2}{\left(\color{blue}{\frac{{t}^{3}}{\frac{\ell \cdot \ell}{\sin k}}} \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)} \]
      2. add-cube-cbrt73.6%

        \[\leadsto \frac{2}{\left(\color{blue}{\left(\left(\sqrt[3]{\frac{{t}^{3}}{\frac{\ell \cdot \ell}{\sin k}}} \cdot \sqrt[3]{\frac{{t}^{3}}{\frac{\ell \cdot \ell}{\sin k}}}\right) \cdot \sqrt[3]{\frac{{t}^{3}}{\frac{\ell \cdot \ell}{\sin k}}}\right)} \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)} \]
      3. pow373.6%

        \[\leadsto \frac{2}{\left(\color{blue}{{\left(\sqrt[3]{\frac{{t}^{3}}{\frac{\ell \cdot \ell}{\sin k}}}\right)}^{3}} \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)} \]
      4. cbrt-div73.5%

        \[\leadsto \frac{2}{\left({\color{blue}{\left(\frac{\sqrt[3]{{t}^{3}}}{\sqrt[3]{\frac{\ell \cdot \ell}{\sin k}}}\right)}}^{3} \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)} \]
      5. rem-cbrt-cube79.6%

        \[\leadsto \frac{2}{\left({\left(\frac{\color{blue}{t}}{\sqrt[3]{\frac{\ell \cdot \ell}{\sin k}}}\right)}^{3} \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)} \]
    3. Applied egg-rr79.6%

      \[\leadsto \frac{2}{\left(\color{blue}{{\left(\frac{t}{\sqrt[3]{\frac{\ell \cdot \ell}{\sin k}}}\right)}^{3}} \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)} \]

    if 1.00000000000000005e26 < (/.f64 2 (*.f64 (*.f64 (*.f64 (/.f64 (pow.f64 t 3) (*.f64 l l)) (sin.f64 k)) (tan.f64 k)) (+.f64 (+.f64 1 (pow.f64 (/.f64 k t) 2)) 1)))

    1. Initial program 21.8%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)} \]
    2. Taylor expanded in t around 0 53.8%

      \[\leadsto \frac{2}{\color{blue}{\frac{{k}^{2} \cdot \left(t \cdot {\sin k}^{2}\right)}{{\ell}^{2} \cdot \cos k}}} \]
    3. Step-by-step derivation
      1. associate-*r*53.8%

        \[\leadsto \frac{2}{\frac{\color{blue}{\left({k}^{2} \cdot t\right) \cdot {\sin k}^{2}}}{{\ell}^{2} \cdot \cos k}} \]
      2. times-frac54.6%

        \[\leadsto \frac{2}{\color{blue}{\frac{{k}^{2} \cdot t}{{\ell}^{2}} \cdot \frac{{\sin k}^{2}}{\cos k}}} \]
      3. unpow254.6%

        \[\leadsto \frac{2}{\frac{\color{blue}{\left(k \cdot k\right)} \cdot t}{{\ell}^{2}} \cdot \frac{{\sin k}^{2}}{\cos k}} \]
      4. associate-*l*57.6%

        \[\leadsto \frac{2}{\frac{\color{blue}{k \cdot \left(k \cdot t\right)}}{{\ell}^{2}} \cdot \frac{{\sin k}^{2}}{\cos k}} \]
      5. unpow257.6%

        \[\leadsto \frac{2}{\frac{k \cdot \left(k \cdot t\right)}{\color{blue}{\ell \cdot \ell}} \cdot \frac{{\sin k}^{2}}{\cos k}} \]
    4. Simplified57.6%

      \[\leadsto \frac{2}{\color{blue}{\frac{k \cdot \left(k \cdot t\right)}{\ell \cdot \ell} \cdot \frac{{\sin k}^{2}}{\cos k}}} \]
    5. Step-by-step derivation
      1. associate-*r/57.6%

        \[\leadsto \frac{2}{\color{blue}{\frac{\frac{k \cdot \left(k \cdot t\right)}{\ell \cdot \ell} \cdot {\sin k}^{2}}{\cos k}}} \]
      2. times-frac74.5%

        \[\leadsto \frac{2}{\frac{\color{blue}{\left(\frac{k}{\ell} \cdot \frac{k \cdot t}{\ell}\right)} \cdot {\sin k}^{2}}{\cos k}} \]
    6. Applied egg-rr74.5%

      \[\leadsto \frac{2}{\color{blue}{\frac{\left(\frac{k}{\ell} \cdot \frac{k \cdot t}{\ell}\right) \cdot {\sin k}^{2}}{\cos k}}} \]
    7. Taylor expanded in k around inf 53.8%

      \[\leadsto \frac{2}{\frac{\color{blue}{\frac{{k}^{2} \cdot \left(t \cdot {\sin k}^{2}\right)}{{\ell}^{2}}}}{\cos k}} \]
    8. Step-by-step derivation
      1. associate-*r*53.9%

        \[\leadsto \frac{2}{\frac{\frac{\color{blue}{\left({k}^{2} \cdot t\right) \cdot {\sin k}^{2}}}{{\ell}^{2}}}{\cos k}} \]
      2. unpow253.9%

        \[\leadsto \frac{2}{\frac{\frac{\left(\color{blue}{\left(k \cdot k\right)} \cdot t\right) \cdot {\sin k}^{2}}{{\ell}^{2}}}{\cos k}} \]
      3. associate-*r*56.9%

        \[\leadsto \frac{2}{\frac{\frac{\color{blue}{\left(k \cdot \left(k \cdot t\right)\right)} \cdot {\sin k}^{2}}{{\ell}^{2}}}{\cos k}} \]
      4. associate-*l/57.6%

        \[\leadsto \frac{2}{\frac{\color{blue}{\frac{k \cdot \left(k \cdot t\right)}{{\ell}^{2}} \cdot {\sin k}^{2}}}{\cos k}} \]
      5. unpow257.6%

        \[\leadsto \frac{2}{\frac{\frac{k \cdot \left(k \cdot t\right)}{\color{blue}{\ell \cdot \ell}} \cdot {\sin k}^{2}}{\cos k}} \]
      6. *-commutative57.6%

        \[\leadsto \frac{2}{\frac{\color{blue}{{\sin k}^{2} \cdot \frac{k \cdot \left(k \cdot t\right)}{\ell \cdot \ell}}}{\cos k}} \]
      7. times-frac74.5%

        \[\leadsto \frac{2}{\frac{{\sin k}^{2} \cdot \color{blue}{\left(\frac{k}{\ell} \cdot \frac{k \cdot t}{\ell}\right)}}{\cos k}} \]
      8. associate-*l/76.9%

        \[\leadsto \frac{2}{\frac{{\sin k}^{2} \cdot \left(\frac{k}{\ell} \cdot \color{blue}{\left(\frac{k}{\ell} \cdot t\right)}\right)}{\cos k}} \]
      9. *-commutative76.9%

        \[\leadsto \frac{2}{\frac{{\sin k}^{2} \cdot \left(\frac{k}{\ell} \cdot \color{blue}{\left(t \cdot \frac{k}{\ell}\right)}\right)}{\cos k}} \]
    9. Simplified76.9%

      \[\leadsto \frac{2}{\frac{\color{blue}{{\sin k}^{2} \cdot \left(\frac{k}{\ell} \cdot \left(t \cdot \frac{k}{\ell}\right)\right)}}{\cos k}} \]
    10. Step-by-step derivation
      1. div-inv76.9%

        \[\leadsto \color{blue}{2 \cdot \frac{1}{\frac{{\sin k}^{2} \cdot \left(\frac{k}{\ell} \cdot \left(t \cdot \frac{k}{\ell}\right)\right)}{\cos k}}} \]
      2. associate-/l*76.9%

        \[\leadsto 2 \cdot \frac{1}{\color{blue}{\frac{{\sin k}^{2}}{\frac{\cos k}{\frac{k}{\ell} \cdot \left(t \cdot \frac{k}{\ell}\right)}}}} \]
    11. Applied egg-rr76.9%

      \[\leadsto \color{blue}{2 \cdot \frac{1}{\frac{{\sin k}^{2}}{\frac{\cos k}{\frac{k}{\ell} \cdot \left(t \cdot \frac{k}{\ell}\right)}}}} \]
    12. Step-by-step derivation
      1. associate-*r/76.9%

        \[\leadsto \color{blue}{\frac{2 \cdot 1}{\frac{{\sin k}^{2}}{\frac{\cos k}{\frac{k}{\ell} \cdot \left(t \cdot \frac{k}{\ell}\right)}}}} \]
      2. metadata-eval76.9%

        \[\leadsto \frac{\color{blue}{2}}{\frac{{\sin k}^{2}}{\frac{\cos k}{\frac{k}{\ell} \cdot \left(t \cdot \frac{k}{\ell}\right)}}} \]
      3. associate-/r/76.9%

        \[\leadsto \color{blue}{\frac{2}{{\sin k}^{2}} \cdot \frac{\cos k}{\frac{k}{\ell} \cdot \left(t \cdot \frac{k}{\ell}\right)}} \]
      4. associate-/r*77.0%

        \[\leadsto \frac{2}{{\sin k}^{2}} \cdot \color{blue}{\frac{\frac{\cos k}{\frac{k}{\ell}}}{t \cdot \frac{k}{\ell}}} \]
      5. associate-*r/74.5%

        \[\leadsto \frac{2}{{\sin k}^{2}} \cdot \frac{\frac{\cos k}{\frac{k}{\ell}}}{\color{blue}{\frac{t \cdot k}{\ell}}} \]
      6. associate-/l*77.0%

        \[\leadsto \frac{2}{{\sin k}^{2}} \cdot \frac{\frac{\cos k}{\frac{k}{\ell}}}{\color{blue}{\frac{t}{\frac{\ell}{k}}}} \]
      7. associate-/r/77.0%

        \[\leadsto \frac{2}{{\sin k}^{2}} \cdot \color{blue}{\left(\frac{\frac{\cos k}{\frac{k}{\ell}}}{t} \cdot \frac{\ell}{k}\right)} \]
    13. Simplified77.0%

      \[\leadsto \color{blue}{\frac{2}{{\sin k}^{2}} \cdot \left(\frac{\frac{\cos k}{\frac{k}{\ell}}}{t} \cdot \frac{\ell}{k}\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification78.3%

    \[\leadsto \begin{array}{l} \mathbf{if}\;\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(1 + \left(1 + {\left(\frac{k}{t}\right)}^{2}\right)\right)} \leq 10^{+26}:\\ \;\;\;\;\frac{2}{\left(1 + \left(1 + {\left(\frac{k}{t}\right)}^{2}\right)\right) \cdot \left(\tan k \cdot {\left(\frac{t}{\sqrt[3]{\frac{\ell \cdot \ell}{\sin k}}}\right)}^{3}\right)}\\ \mathbf{else}:\\ \;\;\;\;\frac{2}{{\sin k}^{2}} \cdot \left(\frac{\frac{\cos k}{\frac{k}{\ell}}}{t} \cdot \frac{\ell}{k}\right)\\ \end{array} \]

Alternative 3: 74.9% accurate, 0.4× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := {\left(\frac{k}{t}\right)}^{2}\\ \mathbf{if}\;\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(1 + \left(1 + t_1\right)\right)} \leq 5 \cdot 10^{+307}:\\ \;\;\;\;\frac{\left(\ell \cdot \ell\right) \cdot \frac{2}{\tan k \cdot {\left(t \cdot \sqrt[3]{\sin k}\right)}^{3}}}{2 + t_1}\\ \mathbf{else}:\\ \;\;\;\;\frac{2}{{\sin k}^{2}} \cdot \left(\frac{\frac{\cos k}{\frac{k}{\ell}}}{t} \cdot \frac{\ell}{k}\right)\\ \end{array} \end{array} \]
(FPCore (t l k)
 :precision binary64
 (let* ((t_1 (pow (/ k t) 2.0)))
   (if (<=
        (/
         2.0
         (*
          (* (* (/ (pow t 3.0) (* l l)) (sin k)) (tan k))
          (+ 1.0 (+ 1.0 t_1))))
        5e+307)
     (/
      (* (* l l) (/ 2.0 (* (tan k) (pow (* t (cbrt (sin k))) 3.0))))
      (+ 2.0 t_1))
     (* (/ 2.0 (pow (sin k) 2.0)) (* (/ (/ (cos k) (/ k l)) t) (/ l k))))))
double code(double t, double l, double k) {
	double t_1 = pow((k / t), 2.0);
	double tmp;
	if ((2.0 / ((((pow(t, 3.0) / (l * l)) * sin(k)) * tan(k)) * (1.0 + (1.0 + t_1)))) <= 5e+307) {
		tmp = ((l * l) * (2.0 / (tan(k) * pow((t * cbrt(sin(k))), 3.0)))) / (2.0 + t_1);
	} else {
		tmp = (2.0 / pow(sin(k), 2.0)) * (((cos(k) / (k / l)) / t) * (l / k));
	}
	return tmp;
}
public static double code(double t, double l, double k) {
	double t_1 = Math.pow((k / t), 2.0);
	double tmp;
	if ((2.0 / ((((Math.pow(t, 3.0) / (l * l)) * Math.sin(k)) * Math.tan(k)) * (1.0 + (1.0 + t_1)))) <= 5e+307) {
		tmp = ((l * l) * (2.0 / (Math.tan(k) * Math.pow((t * Math.cbrt(Math.sin(k))), 3.0)))) / (2.0 + t_1);
	} else {
		tmp = (2.0 / Math.pow(Math.sin(k), 2.0)) * (((Math.cos(k) / (k / l)) / t) * (l / k));
	}
	return tmp;
}
function code(t, l, k)
	t_1 = Float64(k / t) ^ 2.0
	tmp = 0.0
	if (Float64(2.0 / Float64(Float64(Float64(Float64((t ^ 3.0) / Float64(l * l)) * sin(k)) * tan(k)) * Float64(1.0 + Float64(1.0 + t_1)))) <= 5e+307)
		tmp = Float64(Float64(Float64(l * l) * Float64(2.0 / Float64(tan(k) * (Float64(t * cbrt(sin(k))) ^ 3.0)))) / Float64(2.0 + t_1));
	else
		tmp = Float64(Float64(2.0 / (sin(k) ^ 2.0)) * Float64(Float64(Float64(cos(k) / Float64(k / l)) / t) * Float64(l / k)));
	end
	return tmp
end
code[t_, l_, k_] := Block[{t$95$1 = N[Power[N[(k / t), $MachinePrecision], 2.0], $MachinePrecision]}, If[LessEqual[N[(2.0 / N[(N[(N[(N[(N[Power[t, 3.0], $MachinePrecision] / N[(l * l), $MachinePrecision]), $MachinePrecision] * N[Sin[k], $MachinePrecision]), $MachinePrecision] * N[Tan[k], $MachinePrecision]), $MachinePrecision] * N[(1.0 + N[(1.0 + t$95$1), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], 5e+307], N[(N[(N[(l * l), $MachinePrecision] * N[(2.0 / N[(N[Tan[k], $MachinePrecision] * N[Power[N[(t * N[Power[N[Sin[k], $MachinePrecision], 1/3], $MachinePrecision]), $MachinePrecision], 3.0], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(2.0 + t$95$1), $MachinePrecision]), $MachinePrecision], N[(N[(2.0 / N[Power[N[Sin[k], $MachinePrecision], 2.0], $MachinePrecision]), $MachinePrecision] * N[(N[(N[(N[Cos[k], $MachinePrecision] / N[(k / l), $MachinePrecision]), $MachinePrecision] / t), $MachinePrecision] * N[(l / k), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := {\left(\frac{k}{t}\right)}^{2}\\
\mathbf{if}\;\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(1 + \left(1 + t_1\right)\right)} \leq 5 \cdot 10^{+307}:\\
\;\;\;\;\frac{\left(\ell \cdot \ell\right) \cdot \frac{2}{\tan k \cdot {\left(t \cdot \sqrt[3]{\sin k}\right)}^{3}}}{2 + t_1}\\

\mathbf{else}:\\
\;\;\;\;\frac{2}{{\sin k}^{2}} \cdot \left(\frac{\frac{\cos k}{\frac{k}{\ell}}}{t} \cdot \frac{\ell}{k}\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if (/.f64 2 (*.f64 (*.f64 (*.f64 (/.f64 (pow.f64 t 3) (*.f64 l l)) (sin.f64 k)) (tan.f64 k)) (+.f64 (+.f64 1 (pow.f64 (/.f64 k t) 2)) 1))) < 5e307

    1. Initial program 72.8%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)} \]
    2. Step-by-step derivation
      1. associate-/r*72.9%

        \[\leadsto \color{blue}{\frac{\frac{2}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1}} \]
      2. associate-*l*67.4%

        \[\leadsto \frac{\frac{2}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      3. sqr-neg67.4%

        \[\leadsto \frac{\frac{2}{\frac{{t}^{3}}{\color{blue}{\left(-\ell\right) \cdot \left(-\ell\right)}} \cdot \left(\sin k \cdot \tan k\right)}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      4. associate-*l*72.9%

        \[\leadsto \frac{\frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\left(-\ell\right) \cdot \left(-\ell\right)} \cdot \sin k\right) \cdot \tan k}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      5. *-commutative72.9%

        \[\leadsto \frac{\frac{2}{\color{blue}{\tan k \cdot \left(\frac{{t}^{3}}{\left(-\ell\right) \cdot \left(-\ell\right)} \cdot \sin k\right)}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      6. sqr-neg72.9%

        \[\leadsto \frac{\frac{2}{\tan k \cdot \left(\frac{{t}^{3}}{\color{blue}{\ell \cdot \ell}} \cdot \sin k\right)}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      7. associate-*l/74.7%

        \[\leadsto \frac{\frac{2}{\tan k \cdot \color{blue}{\frac{{t}^{3} \cdot \sin k}{\ell \cdot \ell}}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      8. associate-*r/74.0%

        \[\leadsto \frac{\frac{2}{\color{blue}{\frac{\tan k \cdot \left({t}^{3} \cdot \sin k\right)}{\ell \cdot \ell}}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      9. associate-/r/73.2%

        \[\leadsto \frac{\color{blue}{\frac{2}{\tan k \cdot \left({t}^{3} \cdot \sin k\right)} \cdot \left(\ell \cdot \ell\right)}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
    3. Simplified73.2%

      \[\leadsto \color{blue}{\frac{\frac{2}{\tan k \cdot \left({t}^{3} \cdot \sin k\right)} \cdot \left(\ell \cdot \ell\right)}{2 + {\left(\frac{k}{t}\right)}^{2}}} \]
    4. Step-by-step derivation
      1. add-cube-cbrt73.1%

        \[\leadsto \frac{\frac{2}{\tan k \cdot \color{blue}{\left(\left(\sqrt[3]{{t}^{3} \cdot \sin k} \cdot \sqrt[3]{{t}^{3} \cdot \sin k}\right) \cdot \sqrt[3]{{t}^{3} \cdot \sin k}\right)}} \cdot \left(\ell \cdot \ell\right)}{2 + {\left(\frac{k}{t}\right)}^{2}} \]
      2. pow373.1%

        \[\leadsto \frac{\frac{2}{\tan k \cdot \color{blue}{{\left(\sqrt[3]{{t}^{3} \cdot \sin k}\right)}^{3}}} \cdot \left(\ell \cdot \ell\right)}{2 + {\left(\frac{k}{t}\right)}^{2}} \]
      3. cbrt-prod73.0%

        \[\leadsto \frac{\frac{2}{\tan k \cdot {\color{blue}{\left(\sqrt[3]{{t}^{3}} \cdot \sqrt[3]{\sin k}\right)}}^{3}} \cdot \left(\ell \cdot \ell\right)}{2 + {\left(\frac{k}{t}\right)}^{2}} \]
      4. rem-cbrt-cube77.6%

        \[\leadsto \frac{\frac{2}{\tan k \cdot {\left(\color{blue}{t} \cdot \sqrt[3]{\sin k}\right)}^{3}} \cdot \left(\ell \cdot \ell\right)}{2 + {\left(\frac{k}{t}\right)}^{2}} \]
    5. Applied egg-rr77.6%

      \[\leadsto \frac{\frac{2}{\tan k \cdot \color{blue}{{\left(t \cdot \sqrt[3]{\sin k}\right)}^{3}}} \cdot \left(\ell \cdot \ell\right)}{2 + {\left(\frac{k}{t}\right)}^{2}} \]

    if 5e307 < (/.f64 2 (*.f64 (*.f64 (*.f64 (/.f64 (pow.f64 t 3) (*.f64 l l)) (sin.f64 k)) (tan.f64 k)) (+.f64 (+.f64 1 (pow.f64 (/.f64 k t) 2)) 1)))

    1. Initial program 21.2%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)} \]
    2. Taylor expanded in t around 0 54.1%

      \[\leadsto \frac{2}{\color{blue}{\frac{{k}^{2} \cdot \left(t \cdot {\sin k}^{2}\right)}{{\ell}^{2} \cdot \cos k}}} \]
    3. Step-by-step derivation
      1. associate-*r*54.1%

        \[\leadsto \frac{2}{\frac{\color{blue}{\left({k}^{2} \cdot t\right) \cdot {\sin k}^{2}}}{{\ell}^{2} \cdot \cos k}} \]
      2. times-frac54.9%

        \[\leadsto \frac{2}{\color{blue}{\frac{{k}^{2} \cdot t}{{\ell}^{2}} \cdot \frac{{\sin k}^{2}}{\cos k}}} \]
      3. unpow254.9%

        \[\leadsto \frac{2}{\frac{\color{blue}{\left(k \cdot k\right)} \cdot t}{{\ell}^{2}} \cdot \frac{{\sin k}^{2}}{\cos k}} \]
      4. associate-*l*57.9%

        \[\leadsto \frac{2}{\frac{\color{blue}{k \cdot \left(k \cdot t\right)}}{{\ell}^{2}} \cdot \frac{{\sin k}^{2}}{\cos k}} \]
      5. unpow257.9%

        \[\leadsto \frac{2}{\frac{k \cdot \left(k \cdot t\right)}{\color{blue}{\ell \cdot \ell}} \cdot \frac{{\sin k}^{2}}{\cos k}} \]
    4. Simplified57.9%

      \[\leadsto \frac{2}{\color{blue}{\frac{k \cdot \left(k \cdot t\right)}{\ell \cdot \ell} \cdot \frac{{\sin k}^{2}}{\cos k}}} \]
    5. Step-by-step derivation
      1. associate-*r/57.9%

        \[\leadsto \frac{2}{\color{blue}{\frac{\frac{k \cdot \left(k \cdot t\right)}{\ell \cdot \ell} \cdot {\sin k}^{2}}{\cos k}}} \]
      2. times-frac74.9%

        \[\leadsto \frac{2}{\frac{\color{blue}{\left(\frac{k}{\ell} \cdot \frac{k \cdot t}{\ell}\right)} \cdot {\sin k}^{2}}{\cos k}} \]
    6. Applied egg-rr74.9%

      \[\leadsto \frac{2}{\color{blue}{\frac{\left(\frac{k}{\ell} \cdot \frac{k \cdot t}{\ell}\right) \cdot {\sin k}^{2}}{\cos k}}} \]
    7. Taylor expanded in k around inf 54.1%

      \[\leadsto \frac{2}{\frac{\color{blue}{\frac{{k}^{2} \cdot \left(t \cdot {\sin k}^{2}\right)}{{\ell}^{2}}}}{\cos k}} \]
    8. Step-by-step derivation
      1. associate-*r*54.2%

        \[\leadsto \frac{2}{\frac{\frac{\color{blue}{\left({k}^{2} \cdot t\right) \cdot {\sin k}^{2}}}{{\ell}^{2}}}{\cos k}} \]
      2. unpow254.2%

        \[\leadsto \frac{2}{\frac{\frac{\left(\color{blue}{\left(k \cdot k\right)} \cdot t\right) \cdot {\sin k}^{2}}{{\ell}^{2}}}{\cos k}} \]
      3. associate-*r*57.2%

        \[\leadsto \frac{2}{\frac{\frac{\color{blue}{\left(k \cdot \left(k \cdot t\right)\right)} \cdot {\sin k}^{2}}{{\ell}^{2}}}{\cos k}} \]
      4. associate-*l/57.9%

        \[\leadsto \frac{2}{\frac{\color{blue}{\frac{k \cdot \left(k \cdot t\right)}{{\ell}^{2}} \cdot {\sin k}^{2}}}{\cos k}} \]
      5. unpow257.9%

        \[\leadsto \frac{2}{\frac{\frac{k \cdot \left(k \cdot t\right)}{\color{blue}{\ell \cdot \ell}} \cdot {\sin k}^{2}}{\cos k}} \]
      6. *-commutative57.9%

        \[\leadsto \frac{2}{\frac{\color{blue}{{\sin k}^{2} \cdot \frac{k \cdot \left(k \cdot t\right)}{\ell \cdot \ell}}}{\cos k}} \]
      7. times-frac74.9%

        \[\leadsto \frac{2}{\frac{{\sin k}^{2} \cdot \color{blue}{\left(\frac{k}{\ell} \cdot \frac{k \cdot t}{\ell}\right)}}{\cos k}} \]
      8. associate-*l/77.3%

        \[\leadsto \frac{2}{\frac{{\sin k}^{2} \cdot \left(\frac{k}{\ell} \cdot \color{blue}{\left(\frac{k}{\ell} \cdot t\right)}\right)}{\cos k}} \]
      9. *-commutative77.3%

        \[\leadsto \frac{2}{\frac{{\sin k}^{2} \cdot \left(\frac{k}{\ell} \cdot \color{blue}{\left(t \cdot \frac{k}{\ell}\right)}\right)}{\cos k}} \]
    9. Simplified77.3%

      \[\leadsto \frac{2}{\frac{\color{blue}{{\sin k}^{2} \cdot \left(\frac{k}{\ell} \cdot \left(t \cdot \frac{k}{\ell}\right)\right)}}{\cos k}} \]
    10. Step-by-step derivation
      1. div-inv77.3%

        \[\leadsto \color{blue}{2 \cdot \frac{1}{\frac{{\sin k}^{2} \cdot \left(\frac{k}{\ell} \cdot \left(t \cdot \frac{k}{\ell}\right)\right)}{\cos k}}} \]
      2. associate-/l*77.4%

        \[\leadsto 2 \cdot \frac{1}{\color{blue}{\frac{{\sin k}^{2}}{\frac{\cos k}{\frac{k}{\ell} \cdot \left(t \cdot \frac{k}{\ell}\right)}}}} \]
    11. Applied egg-rr77.4%

      \[\leadsto \color{blue}{2 \cdot \frac{1}{\frac{{\sin k}^{2}}{\frac{\cos k}{\frac{k}{\ell} \cdot \left(t \cdot \frac{k}{\ell}\right)}}}} \]
    12. Step-by-step derivation
      1. associate-*r/77.4%

        \[\leadsto \color{blue}{\frac{2 \cdot 1}{\frac{{\sin k}^{2}}{\frac{\cos k}{\frac{k}{\ell} \cdot \left(t \cdot \frac{k}{\ell}\right)}}}} \]
      2. metadata-eval77.4%

        \[\leadsto \frac{\color{blue}{2}}{\frac{{\sin k}^{2}}{\frac{\cos k}{\frac{k}{\ell} \cdot \left(t \cdot \frac{k}{\ell}\right)}}} \]
      3. associate-/r/77.4%

        \[\leadsto \color{blue}{\frac{2}{{\sin k}^{2}} \cdot \frac{\cos k}{\frac{k}{\ell} \cdot \left(t \cdot \frac{k}{\ell}\right)}} \]
      4. associate-/r*77.4%

        \[\leadsto \frac{2}{{\sin k}^{2}} \cdot \color{blue}{\frac{\frac{\cos k}{\frac{k}{\ell}}}{t \cdot \frac{k}{\ell}}} \]
      5. associate-*r/75.0%

        \[\leadsto \frac{2}{{\sin k}^{2}} \cdot \frac{\frac{\cos k}{\frac{k}{\ell}}}{\color{blue}{\frac{t \cdot k}{\ell}}} \]
      6. associate-/l*77.4%

        \[\leadsto \frac{2}{{\sin k}^{2}} \cdot \frac{\frac{\cos k}{\frac{k}{\ell}}}{\color{blue}{\frac{t}{\frac{\ell}{k}}}} \]
      7. associate-/r/77.5%

        \[\leadsto \frac{2}{{\sin k}^{2}} \cdot \color{blue}{\left(\frac{\frac{\cos k}{\frac{k}{\ell}}}{t} \cdot \frac{\ell}{k}\right)} \]
    13. Simplified77.5%

      \[\leadsto \color{blue}{\frac{2}{{\sin k}^{2}} \cdot \left(\frac{\frac{\cos k}{\frac{k}{\ell}}}{t} \cdot \frac{\ell}{k}\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification77.5%

    \[\leadsto \begin{array}{l} \mathbf{if}\;\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(1 + \left(1 + {\left(\frac{k}{t}\right)}^{2}\right)\right)} \leq 5 \cdot 10^{+307}:\\ \;\;\;\;\frac{\left(\ell \cdot \ell\right) \cdot \frac{2}{\tan k \cdot {\left(t \cdot \sqrt[3]{\sin k}\right)}^{3}}}{2 + {\left(\frac{k}{t}\right)}^{2}}\\ \mathbf{else}:\\ \;\;\;\;\frac{2}{{\sin k}^{2}} \cdot \left(\frac{\frac{\cos k}{\frac{k}{\ell}}}{t} \cdot \frac{\ell}{k}\right)\\ \end{array} \]

Alternative 4: 74.5% accurate, 0.4× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := {\left(\frac{k}{t}\right)}^{2}\\ \mathbf{if}\;\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(1 + \left(1 + t_1\right)\right)} \leq 10^{+26}:\\ \;\;\;\;\frac{\frac{\frac{2 \cdot \left(\ell \cdot \ell\right)}{\tan k}}{{\left(t \cdot \sqrt[3]{\sin k}\right)}^{3}}}{2 + t_1}\\ \mathbf{else}:\\ \;\;\;\;\frac{2}{{\sin k}^{2}} \cdot \left(\frac{\frac{\cos k}{\frac{k}{\ell}}}{t} \cdot \frac{\ell}{k}\right)\\ \end{array} \end{array} \]
(FPCore (t l k)
 :precision binary64
 (let* ((t_1 (pow (/ k t) 2.0)))
   (if (<=
        (/
         2.0
         (*
          (* (* (/ (pow t 3.0) (* l l)) (sin k)) (tan k))
          (+ 1.0 (+ 1.0 t_1))))
        1e+26)
     (/
      (/ (/ (* 2.0 (* l l)) (tan k)) (pow (* t (cbrt (sin k))) 3.0))
      (+ 2.0 t_1))
     (* (/ 2.0 (pow (sin k) 2.0)) (* (/ (/ (cos k) (/ k l)) t) (/ l k))))))
double code(double t, double l, double k) {
	double t_1 = pow((k / t), 2.0);
	double tmp;
	if ((2.0 / ((((pow(t, 3.0) / (l * l)) * sin(k)) * tan(k)) * (1.0 + (1.0 + t_1)))) <= 1e+26) {
		tmp = (((2.0 * (l * l)) / tan(k)) / pow((t * cbrt(sin(k))), 3.0)) / (2.0 + t_1);
	} else {
		tmp = (2.0 / pow(sin(k), 2.0)) * (((cos(k) / (k / l)) / t) * (l / k));
	}
	return tmp;
}
public static double code(double t, double l, double k) {
	double t_1 = Math.pow((k / t), 2.0);
	double tmp;
	if ((2.0 / ((((Math.pow(t, 3.0) / (l * l)) * Math.sin(k)) * Math.tan(k)) * (1.0 + (1.0 + t_1)))) <= 1e+26) {
		tmp = (((2.0 * (l * l)) / Math.tan(k)) / Math.pow((t * Math.cbrt(Math.sin(k))), 3.0)) / (2.0 + t_1);
	} else {
		tmp = (2.0 / Math.pow(Math.sin(k), 2.0)) * (((Math.cos(k) / (k / l)) / t) * (l / k));
	}
	return tmp;
}
function code(t, l, k)
	t_1 = Float64(k / t) ^ 2.0
	tmp = 0.0
	if (Float64(2.0 / Float64(Float64(Float64(Float64((t ^ 3.0) / Float64(l * l)) * sin(k)) * tan(k)) * Float64(1.0 + Float64(1.0 + t_1)))) <= 1e+26)
		tmp = Float64(Float64(Float64(Float64(2.0 * Float64(l * l)) / tan(k)) / (Float64(t * cbrt(sin(k))) ^ 3.0)) / Float64(2.0 + t_1));
	else
		tmp = Float64(Float64(2.0 / (sin(k) ^ 2.0)) * Float64(Float64(Float64(cos(k) / Float64(k / l)) / t) * Float64(l / k)));
	end
	return tmp
end
code[t_, l_, k_] := Block[{t$95$1 = N[Power[N[(k / t), $MachinePrecision], 2.0], $MachinePrecision]}, If[LessEqual[N[(2.0 / N[(N[(N[(N[(N[Power[t, 3.0], $MachinePrecision] / N[(l * l), $MachinePrecision]), $MachinePrecision] * N[Sin[k], $MachinePrecision]), $MachinePrecision] * N[Tan[k], $MachinePrecision]), $MachinePrecision] * N[(1.0 + N[(1.0 + t$95$1), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], 1e+26], N[(N[(N[(N[(2.0 * N[(l * l), $MachinePrecision]), $MachinePrecision] / N[Tan[k], $MachinePrecision]), $MachinePrecision] / N[Power[N[(t * N[Power[N[Sin[k], $MachinePrecision], 1/3], $MachinePrecision]), $MachinePrecision], 3.0], $MachinePrecision]), $MachinePrecision] / N[(2.0 + t$95$1), $MachinePrecision]), $MachinePrecision], N[(N[(2.0 / N[Power[N[Sin[k], $MachinePrecision], 2.0], $MachinePrecision]), $MachinePrecision] * N[(N[(N[(N[Cos[k], $MachinePrecision] / N[(k / l), $MachinePrecision]), $MachinePrecision] / t), $MachinePrecision] * N[(l / k), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := {\left(\frac{k}{t}\right)}^{2}\\
\mathbf{if}\;\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(1 + \left(1 + t_1\right)\right)} \leq 10^{+26}:\\
\;\;\;\;\frac{\frac{\frac{2 \cdot \left(\ell \cdot \ell\right)}{\tan k}}{{\left(t \cdot \sqrt[3]{\sin k}\right)}^{3}}}{2 + t_1}\\

\mathbf{else}:\\
\;\;\;\;\frac{2}{{\sin k}^{2}} \cdot \left(\frac{\frac{\cos k}{\frac{k}{\ell}}}{t} \cdot \frac{\ell}{k}\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if (/.f64 2 (*.f64 (*.f64 (*.f64 (/.f64 (pow.f64 t 3) (*.f64 l l)) (sin.f64 k)) (tan.f64 k)) (+.f64 (+.f64 1 (pow.f64 (/.f64 k t) 2)) 1))) < 1.00000000000000005e26

    1. Initial program 72.6%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)} \]
    2. Step-by-step derivation
      1. associate-/r*72.7%

        \[\leadsto \color{blue}{\frac{\frac{2}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1}} \]
      2. associate-*l*67.2%

        \[\leadsto \frac{\frac{2}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      3. sqr-neg67.2%

        \[\leadsto \frac{\frac{2}{\frac{{t}^{3}}{\color{blue}{\left(-\ell\right) \cdot \left(-\ell\right)}} \cdot \left(\sin k \cdot \tan k\right)}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      4. associate-*l*72.7%

        \[\leadsto \frac{\frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\left(-\ell\right) \cdot \left(-\ell\right)} \cdot \sin k\right) \cdot \tan k}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      5. *-commutative72.7%

        \[\leadsto \frac{\frac{2}{\color{blue}{\tan k \cdot \left(\frac{{t}^{3}}{\left(-\ell\right) \cdot \left(-\ell\right)} \cdot \sin k\right)}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      6. sqr-neg72.7%

        \[\leadsto \frac{\frac{2}{\tan k \cdot \left(\frac{{t}^{3}}{\color{blue}{\ell \cdot \ell}} \cdot \sin k\right)}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      7. associate-*l/74.6%

        \[\leadsto \frac{\frac{2}{\tan k \cdot \color{blue}{\frac{{t}^{3} \cdot \sin k}{\ell \cdot \ell}}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      8. associate-*r/73.8%

        \[\leadsto \frac{\frac{2}{\color{blue}{\frac{\tan k \cdot \left({t}^{3} \cdot \sin k\right)}{\ell \cdot \ell}}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      9. associate-/r/73.0%

        \[\leadsto \frac{\color{blue}{\frac{2}{\tan k \cdot \left({t}^{3} \cdot \sin k\right)} \cdot \left(\ell \cdot \ell\right)}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
    3. Simplified73.0%

      \[\leadsto \color{blue}{\frac{\frac{2}{\tan k \cdot \left({t}^{3} \cdot \sin k\right)} \cdot \left(\ell \cdot \ell\right)}{2 + {\left(\frac{k}{t}\right)}^{2}}} \]
    4. Step-by-step derivation
      1. add-cube-cbrt72.9%

        \[\leadsto \frac{\frac{2}{\tan k \cdot \color{blue}{\left(\left(\sqrt[3]{{t}^{3} \cdot \sin k} \cdot \sqrt[3]{{t}^{3} \cdot \sin k}\right) \cdot \sqrt[3]{{t}^{3} \cdot \sin k}\right)}} \cdot \left(\ell \cdot \ell\right)}{2 + {\left(\frac{k}{t}\right)}^{2}} \]
      2. pow372.9%

        \[\leadsto \frac{\frac{2}{\tan k \cdot \color{blue}{{\left(\sqrt[3]{{t}^{3} \cdot \sin k}\right)}^{3}}} \cdot \left(\ell \cdot \ell\right)}{2 + {\left(\frac{k}{t}\right)}^{2}} \]
      3. cbrt-prod72.9%

        \[\leadsto \frac{\frac{2}{\tan k \cdot {\color{blue}{\left(\sqrt[3]{{t}^{3}} \cdot \sqrt[3]{\sin k}\right)}}^{3}} \cdot \left(\ell \cdot \ell\right)}{2 + {\left(\frac{k}{t}\right)}^{2}} \]
      4. rem-cbrt-cube77.5%

        \[\leadsto \frac{\frac{2}{\tan k \cdot {\left(\color{blue}{t} \cdot \sqrt[3]{\sin k}\right)}^{3}} \cdot \left(\ell \cdot \ell\right)}{2 + {\left(\frac{k}{t}\right)}^{2}} \]
    5. Applied egg-rr77.5%

      \[\leadsto \frac{\frac{2}{\tan k \cdot \color{blue}{{\left(t \cdot \sqrt[3]{\sin k}\right)}^{3}}} \cdot \left(\ell \cdot \ell\right)}{2 + {\left(\frac{k}{t}\right)}^{2}} \]
    6. Step-by-step derivation
      1. associate-*l/78.3%

        \[\leadsto \frac{\color{blue}{\frac{2 \cdot \left(\ell \cdot \ell\right)}{\tan k \cdot {\left(t \cdot \sqrt[3]{\sin k}\right)}^{3}}}}{2 + {\left(\frac{k}{t}\right)}^{2}} \]
    7. Applied egg-rr78.3%

      \[\leadsto \frac{\color{blue}{\frac{2 \cdot \left(\ell \cdot \ell\right)}{\tan k \cdot {\left(t \cdot \sqrt[3]{\sin k}\right)}^{3}}}}{2 + {\left(\frac{k}{t}\right)}^{2}} \]
    8. Step-by-step derivation
      1. associate-/r*78.1%

        \[\leadsto \frac{\color{blue}{\frac{\frac{2 \cdot \left(\ell \cdot \ell\right)}{\tan k}}{{\left(t \cdot \sqrt[3]{\sin k}\right)}^{3}}}}{2 + {\left(\frac{k}{t}\right)}^{2}} \]
    9. Simplified78.1%

      \[\leadsto \frac{\color{blue}{\frac{\frac{2 \cdot \left(\ell \cdot \ell\right)}{\tan k}}{{\left(t \cdot \sqrt[3]{\sin k}\right)}^{3}}}}{2 + {\left(\frac{k}{t}\right)}^{2}} \]

    if 1.00000000000000005e26 < (/.f64 2 (*.f64 (*.f64 (*.f64 (/.f64 (pow.f64 t 3) (*.f64 l l)) (sin.f64 k)) (tan.f64 k)) (+.f64 (+.f64 1 (pow.f64 (/.f64 k t) 2)) 1)))

    1. Initial program 21.8%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)} \]
    2. Taylor expanded in t around 0 53.8%

      \[\leadsto \frac{2}{\color{blue}{\frac{{k}^{2} \cdot \left(t \cdot {\sin k}^{2}\right)}{{\ell}^{2} \cdot \cos k}}} \]
    3. Step-by-step derivation
      1. associate-*r*53.8%

        \[\leadsto \frac{2}{\frac{\color{blue}{\left({k}^{2} \cdot t\right) \cdot {\sin k}^{2}}}{{\ell}^{2} \cdot \cos k}} \]
      2. times-frac54.6%

        \[\leadsto \frac{2}{\color{blue}{\frac{{k}^{2} \cdot t}{{\ell}^{2}} \cdot \frac{{\sin k}^{2}}{\cos k}}} \]
      3. unpow254.6%

        \[\leadsto \frac{2}{\frac{\color{blue}{\left(k \cdot k\right)} \cdot t}{{\ell}^{2}} \cdot \frac{{\sin k}^{2}}{\cos k}} \]
      4. associate-*l*57.6%

        \[\leadsto \frac{2}{\frac{\color{blue}{k \cdot \left(k \cdot t\right)}}{{\ell}^{2}} \cdot \frac{{\sin k}^{2}}{\cos k}} \]
      5. unpow257.6%

        \[\leadsto \frac{2}{\frac{k \cdot \left(k \cdot t\right)}{\color{blue}{\ell \cdot \ell}} \cdot \frac{{\sin k}^{2}}{\cos k}} \]
    4. Simplified57.6%

      \[\leadsto \frac{2}{\color{blue}{\frac{k \cdot \left(k \cdot t\right)}{\ell \cdot \ell} \cdot \frac{{\sin k}^{2}}{\cos k}}} \]
    5. Step-by-step derivation
      1. associate-*r/57.6%

        \[\leadsto \frac{2}{\color{blue}{\frac{\frac{k \cdot \left(k \cdot t\right)}{\ell \cdot \ell} \cdot {\sin k}^{2}}{\cos k}}} \]
      2. times-frac74.5%

        \[\leadsto \frac{2}{\frac{\color{blue}{\left(\frac{k}{\ell} \cdot \frac{k \cdot t}{\ell}\right)} \cdot {\sin k}^{2}}{\cos k}} \]
    6. Applied egg-rr74.5%

      \[\leadsto \frac{2}{\color{blue}{\frac{\left(\frac{k}{\ell} \cdot \frac{k \cdot t}{\ell}\right) \cdot {\sin k}^{2}}{\cos k}}} \]
    7. Taylor expanded in k around inf 53.8%

      \[\leadsto \frac{2}{\frac{\color{blue}{\frac{{k}^{2} \cdot \left(t \cdot {\sin k}^{2}\right)}{{\ell}^{2}}}}{\cos k}} \]
    8. Step-by-step derivation
      1. associate-*r*53.9%

        \[\leadsto \frac{2}{\frac{\frac{\color{blue}{\left({k}^{2} \cdot t\right) \cdot {\sin k}^{2}}}{{\ell}^{2}}}{\cos k}} \]
      2. unpow253.9%

        \[\leadsto \frac{2}{\frac{\frac{\left(\color{blue}{\left(k \cdot k\right)} \cdot t\right) \cdot {\sin k}^{2}}{{\ell}^{2}}}{\cos k}} \]
      3. associate-*r*56.9%

        \[\leadsto \frac{2}{\frac{\frac{\color{blue}{\left(k \cdot \left(k \cdot t\right)\right)} \cdot {\sin k}^{2}}{{\ell}^{2}}}{\cos k}} \]
      4. associate-*l/57.6%

        \[\leadsto \frac{2}{\frac{\color{blue}{\frac{k \cdot \left(k \cdot t\right)}{{\ell}^{2}} \cdot {\sin k}^{2}}}{\cos k}} \]
      5. unpow257.6%

        \[\leadsto \frac{2}{\frac{\frac{k \cdot \left(k \cdot t\right)}{\color{blue}{\ell \cdot \ell}} \cdot {\sin k}^{2}}{\cos k}} \]
      6. *-commutative57.6%

        \[\leadsto \frac{2}{\frac{\color{blue}{{\sin k}^{2} \cdot \frac{k \cdot \left(k \cdot t\right)}{\ell \cdot \ell}}}{\cos k}} \]
      7. times-frac74.5%

        \[\leadsto \frac{2}{\frac{{\sin k}^{2} \cdot \color{blue}{\left(\frac{k}{\ell} \cdot \frac{k \cdot t}{\ell}\right)}}{\cos k}} \]
      8. associate-*l/76.9%

        \[\leadsto \frac{2}{\frac{{\sin k}^{2} \cdot \left(\frac{k}{\ell} \cdot \color{blue}{\left(\frac{k}{\ell} \cdot t\right)}\right)}{\cos k}} \]
      9. *-commutative76.9%

        \[\leadsto \frac{2}{\frac{{\sin k}^{2} \cdot \left(\frac{k}{\ell} \cdot \color{blue}{\left(t \cdot \frac{k}{\ell}\right)}\right)}{\cos k}} \]
    9. Simplified76.9%

      \[\leadsto \frac{2}{\frac{\color{blue}{{\sin k}^{2} \cdot \left(\frac{k}{\ell} \cdot \left(t \cdot \frac{k}{\ell}\right)\right)}}{\cos k}} \]
    10. Step-by-step derivation
      1. div-inv76.9%

        \[\leadsto \color{blue}{2 \cdot \frac{1}{\frac{{\sin k}^{2} \cdot \left(\frac{k}{\ell} \cdot \left(t \cdot \frac{k}{\ell}\right)\right)}{\cos k}}} \]
      2. associate-/l*76.9%

        \[\leadsto 2 \cdot \frac{1}{\color{blue}{\frac{{\sin k}^{2}}{\frac{\cos k}{\frac{k}{\ell} \cdot \left(t \cdot \frac{k}{\ell}\right)}}}} \]
    11. Applied egg-rr76.9%

      \[\leadsto \color{blue}{2 \cdot \frac{1}{\frac{{\sin k}^{2}}{\frac{\cos k}{\frac{k}{\ell} \cdot \left(t \cdot \frac{k}{\ell}\right)}}}} \]
    12. Step-by-step derivation
      1. associate-*r/76.9%

        \[\leadsto \color{blue}{\frac{2 \cdot 1}{\frac{{\sin k}^{2}}{\frac{\cos k}{\frac{k}{\ell} \cdot \left(t \cdot \frac{k}{\ell}\right)}}}} \]
      2. metadata-eval76.9%

        \[\leadsto \frac{\color{blue}{2}}{\frac{{\sin k}^{2}}{\frac{\cos k}{\frac{k}{\ell} \cdot \left(t \cdot \frac{k}{\ell}\right)}}} \]
      3. associate-/r/76.9%

        \[\leadsto \color{blue}{\frac{2}{{\sin k}^{2}} \cdot \frac{\cos k}{\frac{k}{\ell} \cdot \left(t \cdot \frac{k}{\ell}\right)}} \]
      4. associate-/r*77.0%

        \[\leadsto \frac{2}{{\sin k}^{2}} \cdot \color{blue}{\frac{\frac{\cos k}{\frac{k}{\ell}}}{t \cdot \frac{k}{\ell}}} \]
      5. associate-*r/74.5%

        \[\leadsto \frac{2}{{\sin k}^{2}} \cdot \frac{\frac{\cos k}{\frac{k}{\ell}}}{\color{blue}{\frac{t \cdot k}{\ell}}} \]
      6. associate-/l*77.0%

        \[\leadsto \frac{2}{{\sin k}^{2}} \cdot \frac{\frac{\cos k}{\frac{k}{\ell}}}{\color{blue}{\frac{t}{\frac{\ell}{k}}}} \]
      7. associate-/r/77.0%

        \[\leadsto \frac{2}{{\sin k}^{2}} \cdot \color{blue}{\left(\frac{\frac{\cos k}{\frac{k}{\ell}}}{t} \cdot \frac{\ell}{k}\right)} \]
    13. Simplified77.0%

      \[\leadsto \color{blue}{\frac{2}{{\sin k}^{2}} \cdot \left(\frac{\frac{\cos k}{\frac{k}{\ell}}}{t} \cdot \frac{\ell}{k}\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification77.6%

    \[\leadsto \begin{array}{l} \mathbf{if}\;\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(1 + \left(1 + {\left(\frac{k}{t}\right)}^{2}\right)\right)} \leq 10^{+26}:\\ \;\;\;\;\frac{\frac{\frac{2 \cdot \left(\ell \cdot \ell\right)}{\tan k}}{{\left(t \cdot \sqrt[3]{\sin k}\right)}^{3}}}{2 + {\left(\frac{k}{t}\right)}^{2}}\\ \mathbf{else}:\\ \;\;\;\;\frac{2}{{\sin k}^{2}} \cdot \left(\frac{\frac{\cos k}{\frac{k}{\ell}}}{t} \cdot \frac{\ell}{k}\right)\\ \end{array} \]

Alternative 5: 74.9% accurate, 0.5× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := {\left(\frac{k}{t}\right)}^{2}\\ \mathbf{if}\;\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(1 + \left(1 + t_1\right)\right)} \leq 5 \cdot 10^{+307}:\\ \;\;\;\;\frac{\ell \cdot \frac{2 \cdot \ell}{\tan k \cdot \left({t}^{3} \cdot \sin k\right)}}{2 + t_1}\\ \mathbf{else}:\\ \;\;\;\;\frac{2}{{\sin k}^{2}} \cdot \left(\frac{\frac{\cos k}{\frac{k}{\ell}}}{t} \cdot \frac{\ell}{k}\right)\\ \end{array} \end{array} \]
(FPCore (t l k)
 :precision binary64
 (let* ((t_1 (pow (/ k t) 2.0)))
   (if (<=
        (/
         2.0
         (*
          (* (* (/ (pow t 3.0) (* l l)) (sin k)) (tan k))
          (+ 1.0 (+ 1.0 t_1))))
        5e+307)
     (/ (* l (/ (* 2.0 l) (* (tan k) (* (pow t 3.0) (sin k))))) (+ 2.0 t_1))
     (* (/ 2.0 (pow (sin k) 2.0)) (* (/ (/ (cos k) (/ k l)) t) (/ l k))))))
double code(double t, double l, double k) {
	double t_1 = pow((k / t), 2.0);
	double tmp;
	if ((2.0 / ((((pow(t, 3.0) / (l * l)) * sin(k)) * tan(k)) * (1.0 + (1.0 + t_1)))) <= 5e+307) {
		tmp = (l * ((2.0 * l) / (tan(k) * (pow(t, 3.0) * sin(k))))) / (2.0 + t_1);
	} else {
		tmp = (2.0 / pow(sin(k), 2.0)) * (((cos(k) / (k / l)) / t) * (l / k));
	}
	return tmp;
}
real(8) function code(t, l, k)
    real(8), intent (in) :: t
    real(8), intent (in) :: l
    real(8), intent (in) :: k
    real(8) :: t_1
    real(8) :: tmp
    t_1 = (k / t) ** 2.0d0
    if ((2.0d0 / (((((t ** 3.0d0) / (l * l)) * sin(k)) * tan(k)) * (1.0d0 + (1.0d0 + t_1)))) <= 5d+307) then
        tmp = (l * ((2.0d0 * l) / (tan(k) * ((t ** 3.0d0) * sin(k))))) / (2.0d0 + t_1)
    else
        tmp = (2.0d0 / (sin(k) ** 2.0d0)) * (((cos(k) / (k / l)) / t) * (l / k))
    end if
    code = tmp
end function
public static double code(double t, double l, double k) {
	double t_1 = Math.pow((k / t), 2.0);
	double tmp;
	if ((2.0 / ((((Math.pow(t, 3.0) / (l * l)) * Math.sin(k)) * Math.tan(k)) * (1.0 + (1.0 + t_1)))) <= 5e+307) {
		tmp = (l * ((2.0 * l) / (Math.tan(k) * (Math.pow(t, 3.0) * Math.sin(k))))) / (2.0 + t_1);
	} else {
		tmp = (2.0 / Math.pow(Math.sin(k), 2.0)) * (((Math.cos(k) / (k / l)) / t) * (l / k));
	}
	return tmp;
}
def code(t, l, k):
	t_1 = math.pow((k / t), 2.0)
	tmp = 0
	if (2.0 / ((((math.pow(t, 3.0) / (l * l)) * math.sin(k)) * math.tan(k)) * (1.0 + (1.0 + t_1)))) <= 5e+307:
		tmp = (l * ((2.0 * l) / (math.tan(k) * (math.pow(t, 3.0) * math.sin(k))))) / (2.0 + t_1)
	else:
		tmp = (2.0 / math.pow(math.sin(k), 2.0)) * (((math.cos(k) / (k / l)) / t) * (l / k))
	return tmp
function code(t, l, k)
	t_1 = Float64(k / t) ^ 2.0
	tmp = 0.0
	if (Float64(2.0 / Float64(Float64(Float64(Float64((t ^ 3.0) / Float64(l * l)) * sin(k)) * tan(k)) * Float64(1.0 + Float64(1.0 + t_1)))) <= 5e+307)
		tmp = Float64(Float64(l * Float64(Float64(2.0 * l) / Float64(tan(k) * Float64((t ^ 3.0) * sin(k))))) / Float64(2.0 + t_1));
	else
		tmp = Float64(Float64(2.0 / (sin(k) ^ 2.0)) * Float64(Float64(Float64(cos(k) / Float64(k / l)) / t) * Float64(l / k)));
	end
	return tmp
end
function tmp_2 = code(t, l, k)
	t_1 = (k / t) ^ 2.0;
	tmp = 0.0;
	if ((2.0 / (((((t ^ 3.0) / (l * l)) * sin(k)) * tan(k)) * (1.0 + (1.0 + t_1)))) <= 5e+307)
		tmp = (l * ((2.0 * l) / (tan(k) * ((t ^ 3.0) * sin(k))))) / (2.0 + t_1);
	else
		tmp = (2.0 / (sin(k) ^ 2.0)) * (((cos(k) / (k / l)) / t) * (l / k));
	end
	tmp_2 = tmp;
end
code[t_, l_, k_] := Block[{t$95$1 = N[Power[N[(k / t), $MachinePrecision], 2.0], $MachinePrecision]}, If[LessEqual[N[(2.0 / N[(N[(N[(N[(N[Power[t, 3.0], $MachinePrecision] / N[(l * l), $MachinePrecision]), $MachinePrecision] * N[Sin[k], $MachinePrecision]), $MachinePrecision] * N[Tan[k], $MachinePrecision]), $MachinePrecision] * N[(1.0 + N[(1.0 + t$95$1), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], 5e+307], N[(N[(l * N[(N[(2.0 * l), $MachinePrecision] / N[(N[Tan[k], $MachinePrecision] * N[(N[Power[t, 3.0], $MachinePrecision] * N[Sin[k], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(2.0 + t$95$1), $MachinePrecision]), $MachinePrecision], N[(N[(2.0 / N[Power[N[Sin[k], $MachinePrecision], 2.0], $MachinePrecision]), $MachinePrecision] * N[(N[(N[(N[Cos[k], $MachinePrecision] / N[(k / l), $MachinePrecision]), $MachinePrecision] / t), $MachinePrecision] * N[(l / k), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := {\left(\frac{k}{t}\right)}^{2}\\
\mathbf{if}\;\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(1 + \left(1 + t_1\right)\right)} \leq 5 \cdot 10^{+307}:\\
\;\;\;\;\frac{\ell \cdot \frac{2 \cdot \ell}{\tan k \cdot \left({t}^{3} \cdot \sin k\right)}}{2 + t_1}\\

\mathbf{else}:\\
\;\;\;\;\frac{2}{{\sin k}^{2}} \cdot \left(\frac{\frac{\cos k}{\frac{k}{\ell}}}{t} \cdot \frac{\ell}{k}\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if (/.f64 2 (*.f64 (*.f64 (*.f64 (/.f64 (pow.f64 t 3) (*.f64 l l)) (sin.f64 k)) (tan.f64 k)) (+.f64 (+.f64 1 (pow.f64 (/.f64 k t) 2)) 1))) < 5e307

    1. Initial program 72.8%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)} \]
    2. Step-by-step derivation
      1. associate-/r*72.9%

        \[\leadsto \color{blue}{\frac{\frac{2}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1}} \]
      2. associate-*l*67.4%

        \[\leadsto \frac{\frac{2}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      3. sqr-neg67.4%

        \[\leadsto \frac{\frac{2}{\frac{{t}^{3}}{\color{blue}{\left(-\ell\right) \cdot \left(-\ell\right)}} \cdot \left(\sin k \cdot \tan k\right)}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      4. associate-*l*72.9%

        \[\leadsto \frac{\frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\left(-\ell\right) \cdot \left(-\ell\right)} \cdot \sin k\right) \cdot \tan k}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      5. *-commutative72.9%

        \[\leadsto \frac{\frac{2}{\color{blue}{\tan k \cdot \left(\frac{{t}^{3}}{\left(-\ell\right) \cdot \left(-\ell\right)} \cdot \sin k\right)}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      6. sqr-neg72.9%

        \[\leadsto \frac{\frac{2}{\tan k \cdot \left(\frac{{t}^{3}}{\color{blue}{\ell \cdot \ell}} \cdot \sin k\right)}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      7. associate-*l/74.7%

        \[\leadsto \frac{\frac{2}{\tan k \cdot \color{blue}{\frac{{t}^{3} \cdot \sin k}{\ell \cdot \ell}}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      8. associate-*r/74.0%

        \[\leadsto \frac{\frac{2}{\color{blue}{\frac{\tan k \cdot \left({t}^{3} \cdot \sin k\right)}{\ell \cdot \ell}}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      9. associate-/r/73.2%

        \[\leadsto \frac{\color{blue}{\frac{2}{\tan k \cdot \left({t}^{3} \cdot \sin k\right)} \cdot \left(\ell \cdot \ell\right)}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
    3. Simplified73.2%

      \[\leadsto \color{blue}{\frac{\frac{2}{\tan k \cdot \left({t}^{3} \cdot \sin k\right)} \cdot \left(\ell \cdot \ell\right)}{2 + {\left(\frac{k}{t}\right)}^{2}}} \]
    4. Step-by-step derivation
      1. add-cube-cbrt73.1%

        \[\leadsto \frac{\frac{2}{\tan k \cdot \color{blue}{\left(\left(\sqrt[3]{{t}^{3} \cdot \sin k} \cdot \sqrt[3]{{t}^{3} \cdot \sin k}\right) \cdot \sqrt[3]{{t}^{3} \cdot \sin k}\right)}} \cdot \left(\ell \cdot \ell\right)}{2 + {\left(\frac{k}{t}\right)}^{2}} \]
      2. pow373.1%

        \[\leadsto \frac{\frac{2}{\tan k \cdot \color{blue}{{\left(\sqrt[3]{{t}^{3} \cdot \sin k}\right)}^{3}}} \cdot \left(\ell \cdot \ell\right)}{2 + {\left(\frac{k}{t}\right)}^{2}} \]
      3. cbrt-prod73.0%

        \[\leadsto \frac{\frac{2}{\tan k \cdot {\color{blue}{\left(\sqrt[3]{{t}^{3}} \cdot \sqrt[3]{\sin k}\right)}}^{3}} \cdot \left(\ell \cdot \ell\right)}{2 + {\left(\frac{k}{t}\right)}^{2}} \]
      4. rem-cbrt-cube77.6%

        \[\leadsto \frac{\frac{2}{\tan k \cdot {\left(\color{blue}{t} \cdot \sqrt[3]{\sin k}\right)}^{3}} \cdot \left(\ell \cdot \ell\right)}{2 + {\left(\frac{k}{t}\right)}^{2}} \]
    5. Applied egg-rr77.6%

      \[\leadsto \frac{\frac{2}{\tan k \cdot \color{blue}{{\left(t \cdot \sqrt[3]{\sin k}\right)}^{3}}} \cdot \left(\ell \cdot \ell\right)}{2 + {\left(\frac{k}{t}\right)}^{2}} \]
    6. Step-by-step derivation
      1. associate-*l/78.4%

        \[\leadsto \frac{\color{blue}{\frac{2 \cdot \left(\ell \cdot \ell\right)}{\tan k \cdot {\left(t \cdot \sqrt[3]{\sin k}\right)}^{3}}}}{2 + {\left(\frac{k}{t}\right)}^{2}} \]
    7. Applied egg-rr78.4%

      \[\leadsto \frac{\color{blue}{\frac{2 \cdot \left(\ell \cdot \ell\right)}{\tan k \cdot {\left(t \cdot \sqrt[3]{\sin k}\right)}^{3}}}}{2 + {\left(\frac{k}{t}\right)}^{2}} \]
    8. Step-by-step derivation
      1. unpow278.4%

        \[\leadsto \frac{\frac{2 \cdot \color{blue}{{\ell}^{2}}}{\tan k \cdot {\left(t \cdot \sqrt[3]{\sin k}\right)}^{3}}}{2 + {\left(\frac{k}{t}\right)}^{2}} \]
      2. *-commutative78.4%

        \[\leadsto \frac{\frac{\color{blue}{{\ell}^{2} \cdot 2}}{\tan k \cdot {\left(t \cdot \sqrt[3]{\sin k}\right)}^{3}}}{2 + {\left(\frac{k}{t}\right)}^{2}} \]
      3. associate-*r/77.6%

        \[\leadsto \frac{\color{blue}{{\ell}^{2} \cdot \frac{2}{\tan k \cdot {\left(t \cdot \sqrt[3]{\sin k}\right)}^{3}}}}{2 + {\left(\frac{k}{t}\right)}^{2}} \]
      4. unpow277.6%

        \[\leadsto \frac{\color{blue}{\left(\ell \cdot \ell\right)} \cdot \frac{2}{\tan k \cdot {\left(t \cdot \sqrt[3]{\sin k}\right)}^{3}}}{2 + {\left(\frac{k}{t}\right)}^{2}} \]
      5. associate-*l*81.6%

        \[\leadsto \frac{\color{blue}{\ell \cdot \left(\ell \cdot \frac{2}{\tan k \cdot {\left(t \cdot \sqrt[3]{\sin k}\right)}^{3}}\right)}}{2 + {\left(\frac{k}{t}\right)}^{2}} \]
      6. associate-*r/82.4%

        \[\leadsto \frac{\ell \cdot \color{blue}{\frac{\ell \cdot 2}{\tan k \cdot {\left(t \cdot \sqrt[3]{\sin k}\right)}^{3}}}}{2 + {\left(\frac{k}{t}\right)}^{2}} \]
      7. *-commutative82.4%

        \[\leadsto \frac{\ell \cdot \frac{\ell \cdot 2}{\tan k \cdot {\color{blue}{\left(\sqrt[3]{\sin k} \cdot t\right)}}^{3}}}{2 + {\left(\frac{k}{t}\right)}^{2}} \]
      8. cube-prod77.3%

        \[\leadsto \frac{\ell \cdot \frac{\ell \cdot 2}{\tan k \cdot \color{blue}{\left({\left(\sqrt[3]{\sin k}\right)}^{3} \cdot {t}^{3}\right)}}}{2 + {\left(\frac{k}{t}\right)}^{2}} \]
      9. rem-cube-cbrt77.4%

        \[\leadsto \frac{\ell \cdot \frac{\ell \cdot 2}{\tan k \cdot \left(\color{blue}{\sin k} \cdot {t}^{3}\right)}}{2 + {\left(\frac{k}{t}\right)}^{2}} \]
    9. Simplified77.4%

      \[\leadsto \frac{\color{blue}{\ell \cdot \frac{\ell \cdot 2}{\tan k \cdot \left(\sin k \cdot {t}^{3}\right)}}}{2 + {\left(\frac{k}{t}\right)}^{2}} \]

    if 5e307 < (/.f64 2 (*.f64 (*.f64 (*.f64 (/.f64 (pow.f64 t 3) (*.f64 l l)) (sin.f64 k)) (tan.f64 k)) (+.f64 (+.f64 1 (pow.f64 (/.f64 k t) 2)) 1)))

    1. Initial program 21.2%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)} \]
    2. Taylor expanded in t around 0 54.1%

      \[\leadsto \frac{2}{\color{blue}{\frac{{k}^{2} \cdot \left(t \cdot {\sin k}^{2}\right)}{{\ell}^{2} \cdot \cos k}}} \]
    3. Step-by-step derivation
      1. associate-*r*54.1%

        \[\leadsto \frac{2}{\frac{\color{blue}{\left({k}^{2} \cdot t\right) \cdot {\sin k}^{2}}}{{\ell}^{2} \cdot \cos k}} \]
      2. times-frac54.9%

        \[\leadsto \frac{2}{\color{blue}{\frac{{k}^{2} \cdot t}{{\ell}^{2}} \cdot \frac{{\sin k}^{2}}{\cos k}}} \]
      3. unpow254.9%

        \[\leadsto \frac{2}{\frac{\color{blue}{\left(k \cdot k\right)} \cdot t}{{\ell}^{2}} \cdot \frac{{\sin k}^{2}}{\cos k}} \]
      4. associate-*l*57.9%

        \[\leadsto \frac{2}{\frac{\color{blue}{k \cdot \left(k \cdot t\right)}}{{\ell}^{2}} \cdot \frac{{\sin k}^{2}}{\cos k}} \]
      5. unpow257.9%

        \[\leadsto \frac{2}{\frac{k \cdot \left(k \cdot t\right)}{\color{blue}{\ell \cdot \ell}} \cdot \frac{{\sin k}^{2}}{\cos k}} \]
    4. Simplified57.9%

      \[\leadsto \frac{2}{\color{blue}{\frac{k \cdot \left(k \cdot t\right)}{\ell \cdot \ell} \cdot \frac{{\sin k}^{2}}{\cos k}}} \]
    5. Step-by-step derivation
      1. associate-*r/57.9%

        \[\leadsto \frac{2}{\color{blue}{\frac{\frac{k \cdot \left(k \cdot t\right)}{\ell \cdot \ell} \cdot {\sin k}^{2}}{\cos k}}} \]
      2. times-frac74.9%

        \[\leadsto \frac{2}{\frac{\color{blue}{\left(\frac{k}{\ell} \cdot \frac{k \cdot t}{\ell}\right)} \cdot {\sin k}^{2}}{\cos k}} \]
    6. Applied egg-rr74.9%

      \[\leadsto \frac{2}{\color{blue}{\frac{\left(\frac{k}{\ell} \cdot \frac{k \cdot t}{\ell}\right) \cdot {\sin k}^{2}}{\cos k}}} \]
    7. Taylor expanded in k around inf 54.1%

      \[\leadsto \frac{2}{\frac{\color{blue}{\frac{{k}^{2} \cdot \left(t \cdot {\sin k}^{2}\right)}{{\ell}^{2}}}}{\cos k}} \]
    8. Step-by-step derivation
      1. associate-*r*54.2%

        \[\leadsto \frac{2}{\frac{\frac{\color{blue}{\left({k}^{2} \cdot t\right) \cdot {\sin k}^{2}}}{{\ell}^{2}}}{\cos k}} \]
      2. unpow254.2%

        \[\leadsto \frac{2}{\frac{\frac{\left(\color{blue}{\left(k \cdot k\right)} \cdot t\right) \cdot {\sin k}^{2}}{{\ell}^{2}}}{\cos k}} \]
      3. associate-*r*57.2%

        \[\leadsto \frac{2}{\frac{\frac{\color{blue}{\left(k \cdot \left(k \cdot t\right)\right)} \cdot {\sin k}^{2}}{{\ell}^{2}}}{\cos k}} \]
      4. associate-*l/57.9%

        \[\leadsto \frac{2}{\frac{\color{blue}{\frac{k \cdot \left(k \cdot t\right)}{{\ell}^{2}} \cdot {\sin k}^{2}}}{\cos k}} \]
      5. unpow257.9%

        \[\leadsto \frac{2}{\frac{\frac{k \cdot \left(k \cdot t\right)}{\color{blue}{\ell \cdot \ell}} \cdot {\sin k}^{2}}{\cos k}} \]
      6. *-commutative57.9%

        \[\leadsto \frac{2}{\frac{\color{blue}{{\sin k}^{2} \cdot \frac{k \cdot \left(k \cdot t\right)}{\ell \cdot \ell}}}{\cos k}} \]
      7. times-frac74.9%

        \[\leadsto \frac{2}{\frac{{\sin k}^{2} \cdot \color{blue}{\left(\frac{k}{\ell} \cdot \frac{k \cdot t}{\ell}\right)}}{\cos k}} \]
      8. associate-*l/77.3%

        \[\leadsto \frac{2}{\frac{{\sin k}^{2} \cdot \left(\frac{k}{\ell} \cdot \color{blue}{\left(\frac{k}{\ell} \cdot t\right)}\right)}{\cos k}} \]
      9. *-commutative77.3%

        \[\leadsto \frac{2}{\frac{{\sin k}^{2} \cdot \left(\frac{k}{\ell} \cdot \color{blue}{\left(t \cdot \frac{k}{\ell}\right)}\right)}{\cos k}} \]
    9. Simplified77.3%

      \[\leadsto \frac{2}{\frac{\color{blue}{{\sin k}^{2} \cdot \left(\frac{k}{\ell} \cdot \left(t \cdot \frac{k}{\ell}\right)\right)}}{\cos k}} \]
    10. Step-by-step derivation
      1. div-inv77.3%

        \[\leadsto \color{blue}{2 \cdot \frac{1}{\frac{{\sin k}^{2} \cdot \left(\frac{k}{\ell} \cdot \left(t \cdot \frac{k}{\ell}\right)\right)}{\cos k}}} \]
      2. associate-/l*77.4%

        \[\leadsto 2 \cdot \frac{1}{\color{blue}{\frac{{\sin k}^{2}}{\frac{\cos k}{\frac{k}{\ell} \cdot \left(t \cdot \frac{k}{\ell}\right)}}}} \]
    11. Applied egg-rr77.4%

      \[\leadsto \color{blue}{2 \cdot \frac{1}{\frac{{\sin k}^{2}}{\frac{\cos k}{\frac{k}{\ell} \cdot \left(t \cdot \frac{k}{\ell}\right)}}}} \]
    12. Step-by-step derivation
      1. associate-*r/77.4%

        \[\leadsto \color{blue}{\frac{2 \cdot 1}{\frac{{\sin k}^{2}}{\frac{\cos k}{\frac{k}{\ell} \cdot \left(t \cdot \frac{k}{\ell}\right)}}}} \]
      2. metadata-eval77.4%

        \[\leadsto \frac{\color{blue}{2}}{\frac{{\sin k}^{2}}{\frac{\cos k}{\frac{k}{\ell} \cdot \left(t \cdot \frac{k}{\ell}\right)}}} \]
      3. associate-/r/77.4%

        \[\leadsto \color{blue}{\frac{2}{{\sin k}^{2}} \cdot \frac{\cos k}{\frac{k}{\ell} \cdot \left(t \cdot \frac{k}{\ell}\right)}} \]
      4. associate-/r*77.4%

        \[\leadsto \frac{2}{{\sin k}^{2}} \cdot \color{blue}{\frac{\frac{\cos k}{\frac{k}{\ell}}}{t \cdot \frac{k}{\ell}}} \]
      5. associate-*r/75.0%

        \[\leadsto \frac{2}{{\sin k}^{2}} \cdot \frac{\frac{\cos k}{\frac{k}{\ell}}}{\color{blue}{\frac{t \cdot k}{\ell}}} \]
      6. associate-/l*77.4%

        \[\leadsto \frac{2}{{\sin k}^{2}} \cdot \frac{\frac{\cos k}{\frac{k}{\ell}}}{\color{blue}{\frac{t}{\frac{\ell}{k}}}} \]
      7. associate-/r/77.5%

        \[\leadsto \frac{2}{{\sin k}^{2}} \cdot \color{blue}{\left(\frac{\frac{\cos k}{\frac{k}{\ell}}}{t} \cdot \frac{\ell}{k}\right)} \]
    13. Simplified77.5%

      \[\leadsto \color{blue}{\frac{2}{{\sin k}^{2}} \cdot \left(\frac{\frac{\cos k}{\frac{k}{\ell}}}{t} \cdot \frac{\ell}{k}\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification77.5%

    \[\leadsto \begin{array}{l} \mathbf{if}\;\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(1 + \left(1 + {\left(\frac{k}{t}\right)}^{2}\right)\right)} \leq 5 \cdot 10^{+307}:\\ \;\;\;\;\frac{\ell \cdot \frac{2 \cdot \ell}{\tan k \cdot \left({t}^{3} \cdot \sin k\right)}}{2 + {\left(\frac{k}{t}\right)}^{2}}\\ \mathbf{else}:\\ \;\;\;\;\frac{2}{{\sin k}^{2}} \cdot \left(\frac{\frac{\cos k}{\frac{k}{\ell}}}{t} \cdot \frac{\ell}{k}\right)\\ \end{array} \]

Alternative 6: 71.8% accurate, 1.3× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;t \leq -1.85 \cdot 10^{+152} \lor \neg \left(t \leq 3800000000000\right):\\ \;\;\;\;\frac{2}{\left(1 + \left(1 + {\left(\frac{k}{t}\right)}^{2}\right)\right) \cdot \left(\tan k \cdot \left(\frac{k}{\ell} \cdot \frac{{t}^{3}}{\ell}\right)\right)}\\ \mathbf{else}:\\ \;\;\;\;\frac{2}{{\sin k}^{2}} \cdot \left(\frac{\frac{\cos k}{\frac{k}{\ell}}}{t} \cdot \frac{\ell}{k}\right)\\ \end{array} \end{array} \]
(FPCore (t l k)
 :precision binary64
 (if (or (<= t -1.85e+152) (not (<= t 3800000000000.0)))
   (/
    2.0
    (*
     (+ 1.0 (+ 1.0 (pow (/ k t) 2.0)))
     (* (tan k) (* (/ k l) (/ (pow t 3.0) l)))))
   (* (/ 2.0 (pow (sin k) 2.0)) (* (/ (/ (cos k) (/ k l)) t) (/ l k)))))
double code(double t, double l, double k) {
	double tmp;
	if ((t <= -1.85e+152) || !(t <= 3800000000000.0)) {
		tmp = 2.0 / ((1.0 + (1.0 + pow((k / t), 2.0))) * (tan(k) * ((k / l) * (pow(t, 3.0) / l))));
	} else {
		tmp = (2.0 / pow(sin(k), 2.0)) * (((cos(k) / (k / l)) / t) * (l / k));
	}
	return tmp;
}
real(8) function code(t, l, k)
    real(8), intent (in) :: t
    real(8), intent (in) :: l
    real(8), intent (in) :: k
    real(8) :: tmp
    if ((t <= (-1.85d+152)) .or. (.not. (t <= 3800000000000.0d0))) then
        tmp = 2.0d0 / ((1.0d0 + (1.0d0 + ((k / t) ** 2.0d0))) * (tan(k) * ((k / l) * ((t ** 3.0d0) / l))))
    else
        tmp = (2.0d0 / (sin(k) ** 2.0d0)) * (((cos(k) / (k / l)) / t) * (l / k))
    end if
    code = tmp
end function
public static double code(double t, double l, double k) {
	double tmp;
	if ((t <= -1.85e+152) || !(t <= 3800000000000.0)) {
		tmp = 2.0 / ((1.0 + (1.0 + Math.pow((k / t), 2.0))) * (Math.tan(k) * ((k / l) * (Math.pow(t, 3.0) / l))));
	} else {
		tmp = (2.0 / Math.pow(Math.sin(k), 2.0)) * (((Math.cos(k) / (k / l)) / t) * (l / k));
	}
	return tmp;
}
def code(t, l, k):
	tmp = 0
	if (t <= -1.85e+152) or not (t <= 3800000000000.0):
		tmp = 2.0 / ((1.0 + (1.0 + math.pow((k / t), 2.0))) * (math.tan(k) * ((k / l) * (math.pow(t, 3.0) / l))))
	else:
		tmp = (2.0 / math.pow(math.sin(k), 2.0)) * (((math.cos(k) / (k / l)) / t) * (l / k))
	return tmp
function code(t, l, k)
	tmp = 0.0
	if ((t <= -1.85e+152) || !(t <= 3800000000000.0))
		tmp = Float64(2.0 / Float64(Float64(1.0 + Float64(1.0 + (Float64(k / t) ^ 2.0))) * Float64(tan(k) * Float64(Float64(k / l) * Float64((t ^ 3.0) / l)))));
	else
		tmp = Float64(Float64(2.0 / (sin(k) ^ 2.0)) * Float64(Float64(Float64(cos(k) / Float64(k / l)) / t) * Float64(l / k)));
	end
	return tmp
end
function tmp_2 = code(t, l, k)
	tmp = 0.0;
	if ((t <= -1.85e+152) || ~((t <= 3800000000000.0)))
		tmp = 2.0 / ((1.0 + (1.0 + ((k / t) ^ 2.0))) * (tan(k) * ((k / l) * ((t ^ 3.0) / l))));
	else
		tmp = (2.0 / (sin(k) ^ 2.0)) * (((cos(k) / (k / l)) / t) * (l / k));
	end
	tmp_2 = tmp;
end
code[t_, l_, k_] := If[Or[LessEqual[t, -1.85e+152], N[Not[LessEqual[t, 3800000000000.0]], $MachinePrecision]], N[(2.0 / N[(N[(1.0 + N[(1.0 + N[Power[N[(k / t), $MachinePrecision], 2.0], $MachinePrecision]), $MachinePrecision]), $MachinePrecision] * N[(N[Tan[k], $MachinePrecision] * N[(N[(k / l), $MachinePrecision] * N[(N[Power[t, 3.0], $MachinePrecision] / l), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(2.0 / N[Power[N[Sin[k], $MachinePrecision], 2.0], $MachinePrecision]), $MachinePrecision] * N[(N[(N[(N[Cos[k], $MachinePrecision] / N[(k / l), $MachinePrecision]), $MachinePrecision] / t), $MachinePrecision] * N[(l / k), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;t \leq -1.85 \cdot 10^{+152} \lor \neg \left(t \leq 3800000000000\right):\\
\;\;\;\;\frac{2}{\left(1 + \left(1 + {\left(\frac{k}{t}\right)}^{2}\right)\right) \cdot \left(\tan k \cdot \left(\frac{k}{\ell} \cdot \frac{{t}^{3}}{\ell}\right)\right)}\\

\mathbf{else}:\\
\;\;\;\;\frac{2}{{\sin k}^{2}} \cdot \left(\frac{\frac{\cos k}{\frac{k}{\ell}}}{t} \cdot \frac{\ell}{k}\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if t < -1.84999999999999998e152 or 3.8e12 < t

    1. Initial program 54.8%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)} \]
    2. Taylor expanded in k around 0 56.7%

      \[\leadsto \frac{2}{\left(\color{blue}{\frac{k \cdot {t}^{3}}{{\ell}^{2}}} \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)} \]
    3. Step-by-step derivation
      1. *-commutative56.7%

        \[\leadsto \frac{2}{\left(\frac{\color{blue}{{t}^{3} \cdot k}}{{\ell}^{2}} \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)} \]
      2. unpow256.7%

        \[\leadsto \frac{2}{\left(\frac{{t}^{3} \cdot k}{\color{blue}{\ell \cdot \ell}} \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)} \]
      3. times-frac60.0%

        \[\leadsto \frac{2}{\left(\color{blue}{\left(\frac{{t}^{3}}{\ell} \cdot \frac{k}{\ell}\right)} \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)} \]
    4. Simplified60.0%

      \[\leadsto \frac{2}{\left(\color{blue}{\left(\frac{{t}^{3}}{\ell} \cdot \frac{k}{\ell}\right)} \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)} \]

    if -1.84999999999999998e152 < t < 3.8e12

    1. Initial program 43.0%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)} \]
    2. Taylor expanded in t around 0 66.0%

      \[\leadsto \frac{2}{\color{blue}{\frac{{k}^{2} \cdot \left(t \cdot {\sin k}^{2}\right)}{{\ell}^{2} \cdot \cos k}}} \]
    3. Step-by-step derivation
      1. associate-*r*66.0%

        \[\leadsto \frac{2}{\frac{\color{blue}{\left({k}^{2} \cdot t\right) \cdot {\sin k}^{2}}}{{\ell}^{2} \cdot \cos k}} \]
      2. times-frac66.5%

        \[\leadsto \frac{2}{\color{blue}{\frac{{k}^{2} \cdot t}{{\ell}^{2}} \cdot \frac{{\sin k}^{2}}{\cos k}}} \]
      3. unpow266.5%

        \[\leadsto \frac{2}{\frac{\color{blue}{\left(k \cdot k\right)} \cdot t}{{\ell}^{2}} \cdot \frac{{\sin k}^{2}}{\cos k}} \]
      4. associate-*l*68.8%

        \[\leadsto \frac{2}{\frac{\color{blue}{k \cdot \left(k \cdot t\right)}}{{\ell}^{2}} \cdot \frac{{\sin k}^{2}}{\cos k}} \]
      5. unpow268.8%

        \[\leadsto \frac{2}{\frac{k \cdot \left(k \cdot t\right)}{\color{blue}{\ell \cdot \ell}} \cdot \frac{{\sin k}^{2}}{\cos k}} \]
    4. Simplified68.8%

      \[\leadsto \frac{2}{\color{blue}{\frac{k \cdot \left(k \cdot t\right)}{\ell \cdot \ell} \cdot \frac{{\sin k}^{2}}{\cos k}}} \]
    5. Step-by-step derivation
      1. associate-*r/68.8%

        \[\leadsto \frac{2}{\color{blue}{\frac{\frac{k \cdot \left(k \cdot t\right)}{\ell \cdot \ell} \cdot {\sin k}^{2}}{\cos k}}} \]
      2. times-frac81.6%

        \[\leadsto \frac{2}{\frac{\color{blue}{\left(\frac{k}{\ell} \cdot \frac{k \cdot t}{\ell}\right)} \cdot {\sin k}^{2}}{\cos k}} \]
    6. Applied egg-rr81.6%

      \[\leadsto \frac{2}{\color{blue}{\frac{\left(\frac{k}{\ell} \cdot \frac{k \cdot t}{\ell}\right) \cdot {\sin k}^{2}}{\cos k}}} \]
    7. Taylor expanded in k around inf 66.0%

      \[\leadsto \frac{2}{\frac{\color{blue}{\frac{{k}^{2} \cdot \left(t \cdot {\sin k}^{2}\right)}{{\ell}^{2}}}}{\cos k}} \]
    8. Step-by-step derivation
      1. associate-*r*66.0%

        \[\leadsto \frac{2}{\frac{\frac{\color{blue}{\left({k}^{2} \cdot t\right) \cdot {\sin k}^{2}}}{{\ell}^{2}}}{\cos k}} \]
      2. unpow266.0%

        \[\leadsto \frac{2}{\frac{\frac{\left(\color{blue}{\left(k \cdot k\right)} \cdot t\right) \cdot {\sin k}^{2}}{{\ell}^{2}}}{\cos k}} \]
      3. associate-*r*68.3%

        \[\leadsto \frac{2}{\frac{\frac{\color{blue}{\left(k \cdot \left(k \cdot t\right)\right)} \cdot {\sin k}^{2}}{{\ell}^{2}}}{\cos k}} \]
      4. associate-*l/68.8%

        \[\leadsto \frac{2}{\frac{\color{blue}{\frac{k \cdot \left(k \cdot t\right)}{{\ell}^{2}} \cdot {\sin k}^{2}}}{\cos k}} \]
      5. unpow268.8%

        \[\leadsto \frac{2}{\frac{\frac{k \cdot \left(k \cdot t\right)}{\color{blue}{\ell \cdot \ell}} \cdot {\sin k}^{2}}{\cos k}} \]
      6. *-commutative68.8%

        \[\leadsto \frac{2}{\frac{\color{blue}{{\sin k}^{2} \cdot \frac{k \cdot \left(k \cdot t\right)}{\ell \cdot \ell}}}{\cos k}} \]
      7. times-frac81.6%

        \[\leadsto \frac{2}{\frac{{\sin k}^{2} \cdot \color{blue}{\left(\frac{k}{\ell} \cdot \frac{k \cdot t}{\ell}\right)}}{\cos k}} \]
      8. associate-*l/84.0%

        \[\leadsto \frac{2}{\frac{{\sin k}^{2} \cdot \left(\frac{k}{\ell} \cdot \color{blue}{\left(\frac{k}{\ell} \cdot t\right)}\right)}{\cos k}} \]
      9. *-commutative84.0%

        \[\leadsto \frac{2}{\frac{{\sin k}^{2} \cdot \left(\frac{k}{\ell} \cdot \color{blue}{\left(t \cdot \frac{k}{\ell}\right)}\right)}{\cos k}} \]
    9. Simplified84.0%

      \[\leadsto \frac{2}{\frac{\color{blue}{{\sin k}^{2} \cdot \left(\frac{k}{\ell} \cdot \left(t \cdot \frac{k}{\ell}\right)\right)}}{\cos k}} \]
    10. Step-by-step derivation
      1. div-inv84.0%

        \[\leadsto \color{blue}{2 \cdot \frac{1}{\frac{{\sin k}^{2} \cdot \left(\frac{k}{\ell} \cdot \left(t \cdot \frac{k}{\ell}\right)\right)}{\cos k}}} \]
      2. associate-/l*84.0%

        \[\leadsto 2 \cdot \frac{1}{\color{blue}{\frac{{\sin k}^{2}}{\frac{\cos k}{\frac{k}{\ell} \cdot \left(t \cdot \frac{k}{\ell}\right)}}}} \]
    11. Applied egg-rr84.0%

      \[\leadsto \color{blue}{2 \cdot \frac{1}{\frac{{\sin k}^{2}}{\frac{\cos k}{\frac{k}{\ell} \cdot \left(t \cdot \frac{k}{\ell}\right)}}}} \]
    12. Step-by-step derivation
      1. associate-*r/84.0%

        \[\leadsto \color{blue}{\frac{2 \cdot 1}{\frac{{\sin k}^{2}}{\frac{\cos k}{\frac{k}{\ell} \cdot \left(t \cdot \frac{k}{\ell}\right)}}}} \]
      2. metadata-eval84.0%

        \[\leadsto \frac{\color{blue}{2}}{\frac{{\sin k}^{2}}{\frac{\cos k}{\frac{k}{\ell} \cdot \left(t \cdot \frac{k}{\ell}\right)}}} \]
      3. associate-/r/84.0%

        \[\leadsto \color{blue}{\frac{2}{{\sin k}^{2}} \cdot \frac{\cos k}{\frac{k}{\ell} \cdot \left(t \cdot \frac{k}{\ell}\right)}} \]
      4. associate-/r*84.2%

        \[\leadsto \frac{2}{{\sin k}^{2}} \cdot \color{blue}{\frac{\frac{\cos k}{\frac{k}{\ell}}}{t \cdot \frac{k}{\ell}}} \]
      5. associate-*r/81.7%

        \[\leadsto \frac{2}{{\sin k}^{2}} \cdot \frac{\frac{\cos k}{\frac{k}{\ell}}}{\color{blue}{\frac{t \cdot k}{\ell}}} \]
      6. associate-/l*84.2%

        \[\leadsto \frac{2}{{\sin k}^{2}} \cdot \frac{\frac{\cos k}{\frac{k}{\ell}}}{\color{blue}{\frac{t}{\frac{\ell}{k}}}} \]
      7. associate-/r/84.2%

        \[\leadsto \frac{2}{{\sin k}^{2}} \cdot \color{blue}{\left(\frac{\frac{\cos k}{\frac{k}{\ell}}}{t} \cdot \frac{\ell}{k}\right)} \]
    13. Simplified84.2%

      \[\leadsto \color{blue}{\frac{2}{{\sin k}^{2}} \cdot \left(\frac{\frac{\cos k}{\frac{k}{\ell}}}{t} \cdot \frac{\ell}{k}\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification76.0%

    \[\leadsto \begin{array}{l} \mathbf{if}\;t \leq -1.85 \cdot 10^{+152} \lor \neg \left(t \leq 3800000000000\right):\\ \;\;\;\;\frac{2}{\left(1 + \left(1 + {\left(\frac{k}{t}\right)}^{2}\right)\right) \cdot \left(\tan k \cdot \left(\frac{k}{\ell} \cdot \frac{{t}^{3}}{\ell}\right)\right)}\\ \mathbf{else}:\\ \;\;\;\;\frac{2}{{\sin k}^{2}} \cdot \left(\frac{\frac{\cos k}{\frac{k}{\ell}}}{t} \cdot \frac{\ell}{k}\right)\\ \end{array} \]

Alternative 7: 71.9% accurate, 1.3× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := \frac{{t}^{3}}{\ell}\\ t_2 := 1 + \left(1 + {\left(\frac{k}{t}\right)}^{2}\right)\\ \mathbf{if}\;t \leq -1.25 \cdot 10^{+148}:\\ \;\;\;\;\frac{2}{t_2 \cdot \left(\tan k \cdot \frac{k}{\frac{\ell}{t_1}}\right)}\\ \mathbf{elif}\;t \leq 2.1 \cdot 10^{+14}:\\ \;\;\;\;\frac{2}{{\sin k}^{2}} \cdot \left(\frac{\frac{\cos k}{\frac{k}{\ell}}}{t} \cdot \frac{\ell}{k}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{2}{t_2 \cdot \left(\tan k \cdot \left(\frac{k}{\ell} \cdot t_1\right)\right)}\\ \end{array} \end{array} \]
(FPCore (t l k)
 :precision binary64
 (let* ((t_1 (/ (pow t 3.0) l)) (t_2 (+ 1.0 (+ 1.0 (pow (/ k t) 2.0)))))
   (if (<= t -1.25e+148)
     (/ 2.0 (* t_2 (* (tan k) (/ k (/ l t_1)))))
     (if (<= t 2.1e+14)
       (* (/ 2.0 (pow (sin k) 2.0)) (* (/ (/ (cos k) (/ k l)) t) (/ l k)))
       (/ 2.0 (* t_2 (* (tan k) (* (/ k l) t_1))))))))
double code(double t, double l, double k) {
	double t_1 = pow(t, 3.0) / l;
	double t_2 = 1.0 + (1.0 + pow((k / t), 2.0));
	double tmp;
	if (t <= -1.25e+148) {
		tmp = 2.0 / (t_2 * (tan(k) * (k / (l / t_1))));
	} else if (t <= 2.1e+14) {
		tmp = (2.0 / pow(sin(k), 2.0)) * (((cos(k) / (k / l)) / t) * (l / k));
	} else {
		tmp = 2.0 / (t_2 * (tan(k) * ((k / l) * t_1)));
	}
	return tmp;
}
real(8) function code(t, l, k)
    real(8), intent (in) :: t
    real(8), intent (in) :: l
    real(8), intent (in) :: k
    real(8) :: t_1
    real(8) :: t_2
    real(8) :: tmp
    t_1 = (t ** 3.0d0) / l
    t_2 = 1.0d0 + (1.0d0 + ((k / t) ** 2.0d0))
    if (t <= (-1.25d+148)) then
        tmp = 2.0d0 / (t_2 * (tan(k) * (k / (l / t_1))))
    else if (t <= 2.1d+14) then
        tmp = (2.0d0 / (sin(k) ** 2.0d0)) * (((cos(k) / (k / l)) / t) * (l / k))
    else
        tmp = 2.0d0 / (t_2 * (tan(k) * ((k / l) * t_1)))
    end if
    code = tmp
end function
public static double code(double t, double l, double k) {
	double t_1 = Math.pow(t, 3.0) / l;
	double t_2 = 1.0 + (1.0 + Math.pow((k / t), 2.0));
	double tmp;
	if (t <= -1.25e+148) {
		tmp = 2.0 / (t_2 * (Math.tan(k) * (k / (l / t_1))));
	} else if (t <= 2.1e+14) {
		tmp = (2.0 / Math.pow(Math.sin(k), 2.0)) * (((Math.cos(k) / (k / l)) / t) * (l / k));
	} else {
		tmp = 2.0 / (t_2 * (Math.tan(k) * ((k / l) * t_1)));
	}
	return tmp;
}
def code(t, l, k):
	t_1 = math.pow(t, 3.0) / l
	t_2 = 1.0 + (1.0 + math.pow((k / t), 2.0))
	tmp = 0
	if t <= -1.25e+148:
		tmp = 2.0 / (t_2 * (math.tan(k) * (k / (l / t_1))))
	elif t <= 2.1e+14:
		tmp = (2.0 / math.pow(math.sin(k), 2.0)) * (((math.cos(k) / (k / l)) / t) * (l / k))
	else:
		tmp = 2.0 / (t_2 * (math.tan(k) * ((k / l) * t_1)))
	return tmp
function code(t, l, k)
	t_1 = Float64((t ^ 3.0) / l)
	t_2 = Float64(1.0 + Float64(1.0 + (Float64(k / t) ^ 2.0)))
	tmp = 0.0
	if (t <= -1.25e+148)
		tmp = Float64(2.0 / Float64(t_2 * Float64(tan(k) * Float64(k / Float64(l / t_1)))));
	elseif (t <= 2.1e+14)
		tmp = Float64(Float64(2.0 / (sin(k) ^ 2.0)) * Float64(Float64(Float64(cos(k) / Float64(k / l)) / t) * Float64(l / k)));
	else
		tmp = Float64(2.0 / Float64(t_2 * Float64(tan(k) * Float64(Float64(k / l) * t_1))));
	end
	return tmp
end
function tmp_2 = code(t, l, k)
	t_1 = (t ^ 3.0) / l;
	t_2 = 1.0 + (1.0 + ((k / t) ^ 2.0));
	tmp = 0.0;
	if (t <= -1.25e+148)
		tmp = 2.0 / (t_2 * (tan(k) * (k / (l / t_1))));
	elseif (t <= 2.1e+14)
		tmp = (2.0 / (sin(k) ^ 2.0)) * (((cos(k) / (k / l)) / t) * (l / k));
	else
		tmp = 2.0 / (t_2 * (tan(k) * ((k / l) * t_1)));
	end
	tmp_2 = tmp;
end
code[t_, l_, k_] := Block[{t$95$1 = N[(N[Power[t, 3.0], $MachinePrecision] / l), $MachinePrecision]}, Block[{t$95$2 = N[(1.0 + N[(1.0 + N[Power[N[(k / t), $MachinePrecision], 2.0], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[t, -1.25e+148], N[(2.0 / N[(t$95$2 * N[(N[Tan[k], $MachinePrecision] * N[(k / N[(l / t$95$1), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[t, 2.1e+14], N[(N[(2.0 / N[Power[N[Sin[k], $MachinePrecision], 2.0], $MachinePrecision]), $MachinePrecision] * N[(N[(N[(N[Cos[k], $MachinePrecision] / N[(k / l), $MachinePrecision]), $MachinePrecision] / t), $MachinePrecision] * N[(l / k), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(2.0 / N[(t$95$2 * N[(N[Tan[k], $MachinePrecision] * N[(N[(k / l), $MachinePrecision] * t$95$1), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := \frac{{t}^{3}}{\ell}\\
t_2 := 1 + \left(1 + {\left(\frac{k}{t}\right)}^{2}\right)\\
\mathbf{if}\;t \leq -1.25 \cdot 10^{+148}:\\
\;\;\;\;\frac{2}{t_2 \cdot \left(\tan k \cdot \frac{k}{\frac{\ell}{t_1}}\right)}\\

\mathbf{elif}\;t \leq 2.1 \cdot 10^{+14}:\\
\;\;\;\;\frac{2}{{\sin k}^{2}} \cdot \left(\frac{\frac{\cos k}{\frac{k}{\ell}}}{t} \cdot \frac{\ell}{k}\right)\\

\mathbf{else}:\\
\;\;\;\;\frac{2}{t_2 \cdot \left(\tan k \cdot \left(\frac{k}{\ell} \cdot t_1\right)\right)}\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if t < -1.25000000000000006e148

    1. Initial program 54.8%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)} \]
    2. Taylor expanded in k around 0 54.8%

      \[\leadsto \frac{2}{\left(\color{blue}{\frac{k \cdot {t}^{3}}{{\ell}^{2}}} \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)} \]
    3. Step-by-step derivation
      1. associate-/l*54.8%

        \[\leadsto \frac{2}{\left(\color{blue}{\frac{k}{\frac{{\ell}^{2}}{{t}^{3}}}} \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)} \]
      2. unpow254.8%

        \[\leadsto \frac{2}{\left(\frac{k}{\frac{\color{blue}{\ell \cdot \ell}}{{t}^{3}}} \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)} \]
      3. associate-/l*59.9%

        \[\leadsto \frac{2}{\left(\frac{k}{\color{blue}{\frac{\ell}{\frac{{t}^{3}}{\ell}}}} \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)} \]
    4. Simplified59.9%

      \[\leadsto \frac{2}{\left(\color{blue}{\frac{k}{\frac{\ell}{\frac{{t}^{3}}{\ell}}}} \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)} \]

    if -1.25000000000000006e148 < t < 2.1e14

    1. Initial program 43.0%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)} \]
    2. Taylor expanded in t around 0 66.0%

      \[\leadsto \frac{2}{\color{blue}{\frac{{k}^{2} \cdot \left(t \cdot {\sin k}^{2}\right)}{{\ell}^{2} \cdot \cos k}}} \]
    3. Step-by-step derivation
      1. associate-*r*66.0%

        \[\leadsto \frac{2}{\frac{\color{blue}{\left({k}^{2} \cdot t\right) \cdot {\sin k}^{2}}}{{\ell}^{2} \cdot \cos k}} \]
      2. times-frac66.5%

        \[\leadsto \frac{2}{\color{blue}{\frac{{k}^{2} \cdot t}{{\ell}^{2}} \cdot \frac{{\sin k}^{2}}{\cos k}}} \]
      3. unpow266.5%

        \[\leadsto \frac{2}{\frac{\color{blue}{\left(k \cdot k\right)} \cdot t}{{\ell}^{2}} \cdot \frac{{\sin k}^{2}}{\cos k}} \]
      4. associate-*l*68.8%

        \[\leadsto \frac{2}{\frac{\color{blue}{k \cdot \left(k \cdot t\right)}}{{\ell}^{2}} \cdot \frac{{\sin k}^{2}}{\cos k}} \]
      5. unpow268.8%

        \[\leadsto \frac{2}{\frac{k \cdot \left(k \cdot t\right)}{\color{blue}{\ell \cdot \ell}} \cdot \frac{{\sin k}^{2}}{\cos k}} \]
    4. Simplified68.8%

      \[\leadsto \frac{2}{\color{blue}{\frac{k \cdot \left(k \cdot t\right)}{\ell \cdot \ell} \cdot \frac{{\sin k}^{2}}{\cos k}}} \]
    5. Step-by-step derivation
      1. associate-*r/68.8%

        \[\leadsto \frac{2}{\color{blue}{\frac{\frac{k \cdot \left(k \cdot t\right)}{\ell \cdot \ell} \cdot {\sin k}^{2}}{\cos k}}} \]
      2. times-frac81.6%

        \[\leadsto \frac{2}{\frac{\color{blue}{\left(\frac{k}{\ell} \cdot \frac{k \cdot t}{\ell}\right)} \cdot {\sin k}^{2}}{\cos k}} \]
    6. Applied egg-rr81.6%

      \[\leadsto \frac{2}{\color{blue}{\frac{\left(\frac{k}{\ell} \cdot \frac{k \cdot t}{\ell}\right) \cdot {\sin k}^{2}}{\cos k}}} \]
    7. Taylor expanded in k around inf 66.0%

      \[\leadsto \frac{2}{\frac{\color{blue}{\frac{{k}^{2} \cdot \left(t \cdot {\sin k}^{2}\right)}{{\ell}^{2}}}}{\cos k}} \]
    8. Step-by-step derivation
      1. associate-*r*66.0%

        \[\leadsto \frac{2}{\frac{\frac{\color{blue}{\left({k}^{2} \cdot t\right) \cdot {\sin k}^{2}}}{{\ell}^{2}}}{\cos k}} \]
      2. unpow266.0%

        \[\leadsto \frac{2}{\frac{\frac{\left(\color{blue}{\left(k \cdot k\right)} \cdot t\right) \cdot {\sin k}^{2}}{{\ell}^{2}}}{\cos k}} \]
      3. associate-*r*68.3%

        \[\leadsto \frac{2}{\frac{\frac{\color{blue}{\left(k \cdot \left(k \cdot t\right)\right)} \cdot {\sin k}^{2}}{{\ell}^{2}}}{\cos k}} \]
      4. associate-*l/68.8%

        \[\leadsto \frac{2}{\frac{\color{blue}{\frac{k \cdot \left(k \cdot t\right)}{{\ell}^{2}} \cdot {\sin k}^{2}}}{\cos k}} \]
      5. unpow268.8%

        \[\leadsto \frac{2}{\frac{\frac{k \cdot \left(k \cdot t\right)}{\color{blue}{\ell \cdot \ell}} \cdot {\sin k}^{2}}{\cos k}} \]
      6. *-commutative68.8%

        \[\leadsto \frac{2}{\frac{\color{blue}{{\sin k}^{2} \cdot \frac{k \cdot \left(k \cdot t\right)}{\ell \cdot \ell}}}{\cos k}} \]
      7. times-frac81.6%

        \[\leadsto \frac{2}{\frac{{\sin k}^{2} \cdot \color{blue}{\left(\frac{k}{\ell} \cdot \frac{k \cdot t}{\ell}\right)}}{\cos k}} \]
      8. associate-*l/84.0%

        \[\leadsto \frac{2}{\frac{{\sin k}^{2} \cdot \left(\frac{k}{\ell} \cdot \color{blue}{\left(\frac{k}{\ell} \cdot t\right)}\right)}{\cos k}} \]
      9. *-commutative84.0%

        \[\leadsto \frac{2}{\frac{{\sin k}^{2} \cdot \left(\frac{k}{\ell} \cdot \color{blue}{\left(t \cdot \frac{k}{\ell}\right)}\right)}{\cos k}} \]
    9. Simplified84.0%

      \[\leadsto \frac{2}{\frac{\color{blue}{{\sin k}^{2} \cdot \left(\frac{k}{\ell} \cdot \left(t \cdot \frac{k}{\ell}\right)\right)}}{\cos k}} \]
    10. Step-by-step derivation
      1. div-inv84.0%

        \[\leadsto \color{blue}{2 \cdot \frac{1}{\frac{{\sin k}^{2} \cdot \left(\frac{k}{\ell} \cdot \left(t \cdot \frac{k}{\ell}\right)\right)}{\cos k}}} \]
      2. associate-/l*84.0%

        \[\leadsto 2 \cdot \frac{1}{\color{blue}{\frac{{\sin k}^{2}}{\frac{\cos k}{\frac{k}{\ell} \cdot \left(t \cdot \frac{k}{\ell}\right)}}}} \]
    11. Applied egg-rr84.0%

      \[\leadsto \color{blue}{2 \cdot \frac{1}{\frac{{\sin k}^{2}}{\frac{\cos k}{\frac{k}{\ell} \cdot \left(t \cdot \frac{k}{\ell}\right)}}}} \]
    12. Step-by-step derivation
      1. associate-*r/84.0%

        \[\leadsto \color{blue}{\frac{2 \cdot 1}{\frac{{\sin k}^{2}}{\frac{\cos k}{\frac{k}{\ell} \cdot \left(t \cdot \frac{k}{\ell}\right)}}}} \]
      2. metadata-eval84.0%

        \[\leadsto \frac{\color{blue}{2}}{\frac{{\sin k}^{2}}{\frac{\cos k}{\frac{k}{\ell} \cdot \left(t \cdot \frac{k}{\ell}\right)}}} \]
      3. associate-/r/84.0%

        \[\leadsto \color{blue}{\frac{2}{{\sin k}^{2}} \cdot \frac{\cos k}{\frac{k}{\ell} \cdot \left(t \cdot \frac{k}{\ell}\right)}} \]
      4. associate-/r*84.2%

        \[\leadsto \frac{2}{{\sin k}^{2}} \cdot \color{blue}{\frac{\frac{\cos k}{\frac{k}{\ell}}}{t \cdot \frac{k}{\ell}}} \]
      5. associate-*r/81.7%

        \[\leadsto \frac{2}{{\sin k}^{2}} \cdot \frac{\frac{\cos k}{\frac{k}{\ell}}}{\color{blue}{\frac{t \cdot k}{\ell}}} \]
      6. associate-/l*84.2%

        \[\leadsto \frac{2}{{\sin k}^{2}} \cdot \frac{\frac{\cos k}{\frac{k}{\ell}}}{\color{blue}{\frac{t}{\frac{\ell}{k}}}} \]
      7. associate-/r/84.2%

        \[\leadsto \frac{2}{{\sin k}^{2}} \cdot \color{blue}{\left(\frac{\frac{\cos k}{\frac{k}{\ell}}}{t} \cdot \frac{\ell}{k}\right)} \]
    13. Simplified84.2%

      \[\leadsto \color{blue}{\frac{2}{{\sin k}^{2}} \cdot \left(\frac{\frac{\cos k}{\frac{k}{\ell}}}{t} \cdot \frac{\ell}{k}\right)} \]

    if 2.1e14 < t

    1. Initial program 54.8%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)} \]
    2. Taylor expanded in k around 0 57.5%

      \[\leadsto \frac{2}{\left(\color{blue}{\frac{k \cdot {t}^{3}}{{\ell}^{2}}} \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)} \]
    3. Step-by-step derivation
      1. *-commutative57.5%

        \[\leadsto \frac{2}{\left(\frac{\color{blue}{{t}^{3} \cdot k}}{{\ell}^{2}} \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)} \]
      2. unpow257.5%

        \[\leadsto \frac{2}{\left(\frac{{t}^{3} \cdot k}{\color{blue}{\ell \cdot \ell}} \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)} \]
      3. times-frac60.2%

        \[\leadsto \frac{2}{\left(\color{blue}{\left(\frac{{t}^{3}}{\ell} \cdot \frac{k}{\ell}\right)} \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)} \]
    4. Simplified60.2%

      \[\leadsto \frac{2}{\left(\color{blue}{\left(\frac{{t}^{3}}{\ell} \cdot \frac{k}{\ell}\right)} \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification76.0%

    \[\leadsto \begin{array}{l} \mathbf{if}\;t \leq -1.25 \cdot 10^{+148}:\\ \;\;\;\;\frac{2}{\left(1 + \left(1 + {\left(\frac{k}{t}\right)}^{2}\right)\right) \cdot \left(\tan k \cdot \frac{k}{\frac{\ell}{\frac{{t}^{3}}{\ell}}}\right)}\\ \mathbf{elif}\;t \leq 2.1 \cdot 10^{+14}:\\ \;\;\;\;\frac{2}{{\sin k}^{2}} \cdot \left(\frac{\frac{\cos k}{\frac{k}{\ell}}}{t} \cdot \frac{\ell}{k}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{2}{\left(1 + \left(1 + {\left(\frac{k}{t}\right)}^{2}\right)\right) \cdot \left(\tan k \cdot \left(\frac{k}{\ell} \cdot \frac{{t}^{3}}{\ell}\right)\right)}\\ \end{array} \]

Alternative 8: 67.9% accurate, 1.3× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;t \leq -5.3 \cdot 10^{-11} \lor \neg \left(t \leq 4500\right):\\ \;\;\;\;\left(\frac{\ell}{k} \cdot \frac{\ell}{{t}^{3}}\right) \cdot \frac{\cos k}{\sin k}\\ \mathbf{else}:\\ \;\;\;\;\left(\frac{\ell}{\frac{t}{\ell}} \cdot \frac{\cos k}{{\sin k}^{2}}\right) \cdot \frac{2}{k \cdot k}\\ \end{array} \end{array} \]
(FPCore (t l k)
 :precision binary64
 (if (or (<= t -5.3e-11) (not (<= t 4500.0)))
   (* (* (/ l k) (/ l (pow t 3.0))) (/ (cos k) (sin k)))
   (* (* (/ l (/ t l)) (/ (cos k) (pow (sin k) 2.0))) (/ 2.0 (* k k)))))
double code(double t, double l, double k) {
	double tmp;
	if ((t <= -5.3e-11) || !(t <= 4500.0)) {
		tmp = ((l / k) * (l / pow(t, 3.0))) * (cos(k) / sin(k));
	} else {
		tmp = ((l / (t / l)) * (cos(k) / pow(sin(k), 2.0))) * (2.0 / (k * k));
	}
	return tmp;
}
real(8) function code(t, l, k)
    real(8), intent (in) :: t
    real(8), intent (in) :: l
    real(8), intent (in) :: k
    real(8) :: tmp
    if ((t <= (-5.3d-11)) .or. (.not. (t <= 4500.0d0))) then
        tmp = ((l / k) * (l / (t ** 3.0d0))) * (cos(k) / sin(k))
    else
        tmp = ((l / (t / l)) * (cos(k) / (sin(k) ** 2.0d0))) * (2.0d0 / (k * k))
    end if
    code = tmp
end function
public static double code(double t, double l, double k) {
	double tmp;
	if ((t <= -5.3e-11) || !(t <= 4500.0)) {
		tmp = ((l / k) * (l / Math.pow(t, 3.0))) * (Math.cos(k) / Math.sin(k));
	} else {
		tmp = ((l / (t / l)) * (Math.cos(k) / Math.pow(Math.sin(k), 2.0))) * (2.0 / (k * k));
	}
	return tmp;
}
def code(t, l, k):
	tmp = 0
	if (t <= -5.3e-11) or not (t <= 4500.0):
		tmp = ((l / k) * (l / math.pow(t, 3.0))) * (math.cos(k) / math.sin(k))
	else:
		tmp = ((l / (t / l)) * (math.cos(k) / math.pow(math.sin(k), 2.0))) * (2.0 / (k * k))
	return tmp
function code(t, l, k)
	tmp = 0.0
	if ((t <= -5.3e-11) || !(t <= 4500.0))
		tmp = Float64(Float64(Float64(l / k) * Float64(l / (t ^ 3.0))) * Float64(cos(k) / sin(k)));
	else
		tmp = Float64(Float64(Float64(l / Float64(t / l)) * Float64(cos(k) / (sin(k) ^ 2.0))) * Float64(2.0 / Float64(k * k)));
	end
	return tmp
end
function tmp_2 = code(t, l, k)
	tmp = 0.0;
	if ((t <= -5.3e-11) || ~((t <= 4500.0)))
		tmp = ((l / k) * (l / (t ^ 3.0))) * (cos(k) / sin(k));
	else
		tmp = ((l / (t / l)) * (cos(k) / (sin(k) ^ 2.0))) * (2.0 / (k * k));
	end
	tmp_2 = tmp;
end
code[t_, l_, k_] := If[Or[LessEqual[t, -5.3e-11], N[Not[LessEqual[t, 4500.0]], $MachinePrecision]], N[(N[(N[(l / k), $MachinePrecision] * N[(l / N[Power[t, 3.0], $MachinePrecision]), $MachinePrecision]), $MachinePrecision] * N[(N[Cos[k], $MachinePrecision] / N[Sin[k], $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(N[(l / N[(t / l), $MachinePrecision]), $MachinePrecision] * N[(N[Cos[k], $MachinePrecision] / N[Power[N[Sin[k], $MachinePrecision], 2.0], $MachinePrecision]), $MachinePrecision]), $MachinePrecision] * N[(2.0 / N[(k * k), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;t \leq -5.3 \cdot 10^{-11} \lor \neg \left(t \leq 4500\right):\\
\;\;\;\;\left(\frac{\ell}{k} \cdot \frac{\ell}{{t}^{3}}\right) \cdot \frac{\cos k}{\sin k}\\

\mathbf{else}:\\
\;\;\;\;\left(\frac{\ell}{\frac{t}{\ell}} \cdot \frac{\cos k}{{\sin k}^{2}}\right) \cdot \frac{2}{k \cdot k}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if t < -5.2999999999999998e-11 or 4500 < t

    1. Initial program 55.1%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)} \]
    2. Step-by-step derivation
      1. associate-/r*55.2%

        \[\leadsto \color{blue}{\frac{\frac{2}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1}} \]
      2. associate-*l*49.4%

        \[\leadsto \frac{\frac{2}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      3. sqr-neg49.4%

        \[\leadsto \frac{\frac{2}{\frac{{t}^{3}}{\color{blue}{\left(-\ell\right) \cdot \left(-\ell\right)}} \cdot \left(\sin k \cdot \tan k\right)}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      4. associate-*l*55.2%

        \[\leadsto \frac{\frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\left(-\ell\right) \cdot \left(-\ell\right)} \cdot \sin k\right) \cdot \tan k}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      5. *-commutative55.2%

        \[\leadsto \frac{\frac{2}{\color{blue}{\tan k \cdot \left(\frac{{t}^{3}}{\left(-\ell\right) \cdot \left(-\ell\right)} \cdot \sin k\right)}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      6. sqr-neg55.2%

        \[\leadsto \frac{\frac{2}{\tan k \cdot \left(\frac{{t}^{3}}{\color{blue}{\ell \cdot \ell}} \cdot \sin k\right)}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      7. associate-*l/57.2%

        \[\leadsto \frac{\frac{2}{\tan k \cdot \color{blue}{\frac{{t}^{3} \cdot \sin k}{\ell \cdot \ell}}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      8. associate-*r/56.4%

        \[\leadsto \frac{\frac{2}{\color{blue}{\frac{\tan k \cdot \left({t}^{3} \cdot \sin k\right)}{\ell \cdot \ell}}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      9. associate-/r/56.5%

        \[\leadsto \frac{\color{blue}{\frac{2}{\tan k \cdot \left({t}^{3} \cdot \sin k\right)} \cdot \left(\ell \cdot \ell\right)}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
    3. Simplified56.5%

      \[\leadsto \color{blue}{\frac{\frac{2}{\tan k \cdot \left({t}^{3} \cdot \sin k\right)} \cdot \left(\ell \cdot \ell\right)}{2 + {\left(\frac{k}{t}\right)}^{2}}} \]
    4. Taylor expanded in k around 0 54.9%

      \[\leadsto \frac{\frac{2}{\tan k \cdot \left({t}^{3} \cdot \color{blue}{k}\right)} \cdot \left(\ell \cdot \ell\right)}{2 + {\left(\frac{k}{t}\right)}^{2}} \]
    5. Taylor expanded in t around inf 55.0%

      \[\leadsto \color{blue}{\frac{{\ell}^{2} \cdot \cos k}{k \cdot \left({t}^{3} \cdot \sin k\right)}} \]
    6. Step-by-step derivation
      1. associate-*r*55.0%

        \[\leadsto \frac{{\ell}^{2} \cdot \cos k}{\color{blue}{\left(k \cdot {t}^{3}\right) \cdot \sin k}} \]
      2. times-frac55.7%

        \[\leadsto \color{blue}{\frac{{\ell}^{2}}{k \cdot {t}^{3}} \cdot \frac{\cos k}{\sin k}} \]
      3. unpow255.7%

        \[\leadsto \frac{\color{blue}{\ell \cdot \ell}}{k \cdot {t}^{3}} \cdot \frac{\cos k}{\sin k} \]
      4. *-commutative55.7%

        \[\leadsto \frac{\ell \cdot \ell}{\color{blue}{{t}^{3} \cdot k}} \cdot \frac{\cos k}{\sin k} \]
      5. times-frac57.4%

        \[\leadsto \color{blue}{\left(\frac{\ell}{{t}^{3}} \cdot \frac{\ell}{k}\right)} \cdot \frac{\cos k}{\sin k} \]
    7. Simplified57.4%

      \[\leadsto \color{blue}{\left(\frac{\ell}{{t}^{3}} \cdot \frac{\ell}{k}\right) \cdot \frac{\cos k}{\sin k}} \]

    if -5.2999999999999998e-11 < t < 4500

    1. Initial program 39.9%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)} \]
    2. Taylor expanded in t around 0 71.1%

      \[\leadsto \frac{2}{\color{blue}{\frac{{k}^{2} \cdot \left(t \cdot {\sin k}^{2}\right)}{{\ell}^{2} \cdot \cos k}}} \]
    3. Step-by-step derivation
      1. associate-*r*71.1%

        \[\leadsto \frac{2}{\frac{\color{blue}{\left({k}^{2} \cdot t\right) \cdot {\sin k}^{2}}}{{\ell}^{2} \cdot \cos k}} \]
      2. times-frac71.8%

        \[\leadsto \frac{2}{\color{blue}{\frac{{k}^{2} \cdot t}{{\ell}^{2}} \cdot \frac{{\sin k}^{2}}{\cos k}}} \]
      3. unpow271.8%

        \[\leadsto \frac{2}{\frac{\color{blue}{\left(k \cdot k\right)} \cdot t}{{\ell}^{2}} \cdot \frac{{\sin k}^{2}}{\cos k}} \]
      4. associate-*l*74.6%

        \[\leadsto \frac{2}{\frac{\color{blue}{k \cdot \left(k \cdot t\right)}}{{\ell}^{2}} \cdot \frac{{\sin k}^{2}}{\cos k}} \]
      5. unpow274.6%

        \[\leadsto \frac{2}{\frac{k \cdot \left(k \cdot t\right)}{\color{blue}{\ell \cdot \ell}} \cdot \frac{{\sin k}^{2}}{\cos k}} \]
    4. Simplified74.6%

      \[\leadsto \frac{2}{\color{blue}{\frac{k \cdot \left(k \cdot t\right)}{\ell \cdot \ell} \cdot \frac{{\sin k}^{2}}{\cos k}}} \]
    5. Step-by-step derivation
      1. associate-*r/74.6%

        \[\leadsto \frac{2}{\color{blue}{\frac{\frac{k \cdot \left(k \cdot t\right)}{\ell \cdot \ell} \cdot {\sin k}^{2}}{\cos k}}} \]
      2. times-frac87.8%

        \[\leadsto \frac{2}{\frac{\color{blue}{\left(\frac{k}{\ell} \cdot \frac{k \cdot t}{\ell}\right)} \cdot {\sin k}^{2}}{\cos k}} \]
    6. Applied egg-rr87.8%

      \[\leadsto \frac{2}{\color{blue}{\frac{\left(\frac{k}{\ell} \cdot \frac{k \cdot t}{\ell}\right) \cdot {\sin k}^{2}}{\cos k}}} \]
    7. Taylor expanded in k around inf 71.1%

      \[\leadsto \color{blue}{2 \cdot \frac{{\ell}^{2} \cdot \cos k}{{k}^{2} \cdot \left(t \cdot {\sin k}^{2}\right)}} \]
    8. Step-by-step derivation
      1. *-commutative71.1%

        \[\leadsto \color{blue}{\frac{{\ell}^{2} \cdot \cos k}{{k}^{2} \cdot \left(t \cdot {\sin k}^{2}\right)} \cdot 2} \]
      2. associate-*l/71.1%

        \[\leadsto \color{blue}{\frac{\left({\ell}^{2} \cdot \cos k\right) \cdot 2}{{k}^{2} \cdot \left(t \cdot {\sin k}^{2}\right)}} \]
      3. *-commutative71.1%

        \[\leadsto \frac{\left({\ell}^{2} \cdot \cos k\right) \cdot 2}{\color{blue}{\left(t \cdot {\sin k}^{2}\right) \cdot {k}^{2}}} \]
      4. times-frac70.1%

        \[\leadsto \color{blue}{\frac{{\ell}^{2} \cdot \cos k}{t \cdot {\sin k}^{2}} \cdot \frac{2}{{k}^{2}}} \]
      5. times-frac70.9%

        \[\leadsto \color{blue}{\left(\frac{{\ell}^{2}}{t} \cdot \frac{\cos k}{{\sin k}^{2}}\right)} \cdot \frac{2}{{k}^{2}} \]
      6. unpow270.9%

        \[\leadsto \left(\frac{\color{blue}{\ell \cdot \ell}}{t} \cdot \frac{\cos k}{{\sin k}^{2}}\right) \cdot \frac{2}{{k}^{2}} \]
      7. associate-/l*77.1%

        \[\leadsto \left(\color{blue}{\frac{\ell}{\frac{t}{\ell}}} \cdot \frac{\cos k}{{\sin k}^{2}}\right) \cdot \frac{2}{{k}^{2}} \]
      8. unpow277.1%

        \[\leadsto \left(\frac{\ell}{\frac{t}{\ell}} \cdot \frac{\cos k}{{\sin k}^{2}}\right) \cdot \frac{2}{\color{blue}{k \cdot k}} \]
    9. Simplified77.1%

      \[\leadsto \color{blue}{\left(\frac{\ell}{\frac{t}{\ell}} \cdot \frac{\cos k}{{\sin k}^{2}}\right) \cdot \frac{2}{k \cdot k}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification67.9%

    \[\leadsto \begin{array}{l} \mathbf{if}\;t \leq -5.3 \cdot 10^{-11} \lor \neg \left(t \leq 4500\right):\\ \;\;\;\;\left(\frac{\ell}{k} \cdot \frac{\ell}{{t}^{3}}\right) \cdot \frac{\cos k}{\sin k}\\ \mathbf{else}:\\ \;\;\;\;\left(\frac{\ell}{\frac{t}{\ell}} \cdot \frac{\cos k}{{\sin k}^{2}}\right) \cdot \frac{2}{k \cdot k}\\ \end{array} \]

Alternative 9: 71.6% accurate, 1.3× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;t \leq -1.5 \cdot 10^{+149} \lor \neg \left(t \leq 34000000000000\right):\\ \;\;\;\;\left(\frac{\ell}{k} \cdot \frac{\ell}{{t}^{3}}\right) \cdot \frac{\cos k}{\sin k}\\ \mathbf{else}:\\ \;\;\;\;\frac{2}{{\sin k}^{2}} \cdot \left(\frac{\frac{\cos k}{\frac{k}{\ell}}}{t} \cdot \frac{\ell}{k}\right)\\ \end{array} \end{array} \]
(FPCore (t l k)
 :precision binary64
 (if (or (<= t -1.5e+149) (not (<= t 34000000000000.0)))
   (* (* (/ l k) (/ l (pow t 3.0))) (/ (cos k) (sin k)))
   (* (/ 2.0 (pow (sin k) 2.0)) (* (/ (/ (cos k) (/ k l)) t) (/ l k)))))
double code(double t, double l, double k) {
	double tmp;
	if ((t <= -1.5e+149) || !(t <= 34000000000000.0)) {
		tmp = ((l / k) * (l / pow(t, 3.0))) * (cos(k) / sin(k));
	} else {
		tmp = (2.0 / pow(sin(k), 2.0)) * (((cos(k) / (k / l)) / t) * (l / k));
	}
	return tmp;
}
real(8) function code(t, l, k)
    real(8), intent (in) :: t
    real(8), intent (in) :: l
    real(8), intent (in) :: k
    real(8) :: tmp
    if ((t <= (-1.5d+149)) .or. (.not. (t <= 34000000000000.0d0))) then
        tmp = ((l / k) * (l / (t ** 3.0d0))) * (cos(k) / sin(k))
    else
        tmp = (2.0d0 / (sin(k) ** 2.0d0)) * (((cos(k) / (k / l)) / t) * (l / k))
    end if
    code = tmp
end function
public static double code(double t, double l, double k) {
	double tmp;
	if ((t <= -1.5e+149) || !(t <= 34000000000000.0)) {
		tmp = ((l / k) * (l / Math.pow(t, 3.0))) * (Math.cos(k) / Math.sin(k));
	} else {
		tmp = (2.0 / Math.pow(Math.sin(k), 2.0)) * (((Math.cos(k) / (k / l)) / t) * (l / k));
	}
	return tmp;
}
def code(t, l, k):
	tmp = 0
	if (t <= -1.5e+149) or not (t <= 34000000000000.0):
		tmp = ((l / k) * (l / math.pow(t, 3.0))) * (math.cos(k) / math.sin(k))
	else:
		tmp = (2.0 / math.pow(math.sin(k), 2.0)) * (((math.cos(k) / (k / l)) / t) * (l / k))
	return tmp
function code(t, l, k)
	tmp = 0.0
	if ((t <= -1.5e+149) || !(t <= 34000000000000.0))
		tmp = Float64(Float64(Float64(l / k) * Float64(l / (t ^ 3.0))) * Float64(cos(k) / sin(k)));
	else
		tmp = Float64(Float64(2.0 / (sin(k) ^ 2.0)) * Float64(Float64(Float64(cos(k) / Float64(k / l)) / t) * Float64(l / k)));
	end
	return tmp
end
function tmp_2 = code(t, l, k)
	tmp = 0.0;
	if ((t <= -1.5e+149) || ~((t <= 34000000000000.0)))
		tmp = ((l / k) * (l / (t ^ 3.0))) * (cos(k) / sin(k));
	else
		tmp = (2.0 / (sin(k) ^ 2.0)) * (((cos(k) / (k / l)) / t) * (l / k));
	end
	tmp_2 = tmp;
end
code[t_, l_, k_] := If[Or[LessEqual[t, -1.5e+149], N[Not[LessEqual[t, 34000000000000.0]], $MachinePrecision]], N[(N[(N[(l / k), $MachinePrecision] * N[(l / N[Power[t, 3.0], $MachinePrecision]), $MachinePrecision]), $MachinePrecision] * N[(N[Cos[k], $MachinePrecision] / N[Sin[k], $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(2.0 / N[Power[N[Sin[k], $MachinePrecision], 2.0], $MachinePrecision]), $MachinePrecision] * N[(N[(N[(N[Cos[k], $MachinePrecision] / N[(k / l), $MachinePrecision]), $MachinePrecision] / t), $MachinePrecision] * N[(l / k), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;t \leq -1.5 \cdot 10^{+149} \lor \neg \left(t \leq 34000000000000\right):\\
\;\;\;\;\left(\frac{\ell}{k} \cdot \frac{\ell}{{t}^{3}}\right) \cdot \frac{\cos k}{\sin k}\\

\mathbf{else}:\\
\;\;\;\;\frac{2}{{\sin k}^{2}} \cdot \left(\frac{\frac{\cos k}{\frac{k}{\ell}}}{t} \cdot \frac{\ell}{k}\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if t < -1.50000000000000002e149 or 3.4e13 < t

    1. Initial program 54.8%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)} \]
    2. Step-by-step derivation
      1. associate-/r*55.0%

        \[\leadsto \color{blue}{\frac{\frac{2}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1}} \]
      2. associate-*l*48.8%

        \[\leadsto \frac{\frac{2}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      3. sqr-neg48.8%

        \[\leadsto \frac{\frac{2}{\frac{{t}^{3}}{\color{blue}{\left(-\ell\right) \cdot \left(-\ell\right)}} \cdot \left(\sin k \cdot \tan k\right)}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      4. associate-*l*55.0%

        \[\leadsto \frac{\frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\left(-\ell\right) \cdot \left(-\ell\right)} \cdot \sin k\right) \cdot \tan k}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      5. *-commutative55.0%

        \[\leadsto \frac{\frac{2}{\color{blue}{\tan k \cdot \left(\frac{{t}^{3}}{\left(-\ell\right) \cdot \left(-\ell\right)} \cdot \sin k\right)}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      6. sqr-neg55.0%

        \[\leadsto \frac{\frac{2}{\tan k \cdot \left(\frac{{t}^{3}}{\color{blue}{\ell \cdot \ell}} \cdot \sin k\right)}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      7. associate-*l/57.9%

        \[\leadsto \frac{\frac{2}{\tan k \cdot \color{blue}{\frac{{t}^{3} \cdot \sin k}{\ell \cdot \ell}}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      8. associate-*r/56.7%

        \[\leadsto \frac{\frac{2}{\color{blue}{\frac{\tan k \cdot \left({t}^{3} \cdot \sin k\right)}{\ell \cdot \ell}}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      9. associate-/r/56.8%

        \[\leadsto \frac{\color{blue}{\frac{2}{\tan k \cdot \left({t}^{3} \cdot \sin k\right)} \cdot \left(\ell \cdot \ell\right)}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
    3. Simplified56.8%

      \[\leadsto \color{blue}{\frac{\frac{2}{\tan k \cdot \left({t}^{3} \cdot \sin k\right)} \cdot \left(\ell \cdot \ell\right)}{2 + {\left(\frac{k}{t}\right)}^{2}}} \]
    4. Taylor expanded in k around 0 55.6%

      \[\leadsto \frac{\frac{2}{\tan k \cdot \left({t}^{3} \cdot \color{blue}{k}\right)} \cdot \left(\ell \cdot \ell\right)}{2 + {\left(\frac{k}{t}\right)}^{2}} \]
    5. Taylor expanded in t around inf 55.6%

      \[\leadsto \color{blue}{\frac{{\ell}^{2} \cdot \cos k}{k \cdot \left({t}^{3} \cdot \sin k\right)}} \]
    6. Step-by-step derivation
      1. associate-*r*55.6%

        \[\leadsto \frac{{\ell}^{2} \cdot \cos k}{\color{blue}{\left(k \cdot {t}^{3}\right) \cdot \sin k}} \]
      2. times-frac56.7%

        \[\leadsto \color{blue}{\frac{{\ell}^{2}}{k \cdot {t}^{3}} \cdot \frac{\cos k}{\sin k}} \]
      3. unpow256.7%

        \[\leadsto \frac{\color{blue}{\ell \cdot \ell}}{k \cdot {t}^{3}} \cdot \frac{\cos k}{\sin k} \]
      4. *-commutative56.7%

        \[\leadsto \frac{\ell \cdot \ell}{\color{blue}{{t}^{3} \cdot k}} \cdot \frac{\cos k}{\sin k} \]
      5. times-frac59.7%

        \[\leadsto \color{blue}{\left(\frac{\ell}{{t}^{3}} \cdot \frac{\ell}{k}\right)} \cdot \frac{\cos k}{\sin k} \]
    7. Simplified59.7%

      \[\leadsto \color{blue}{\left(\frac{\ell}{{t}^{3}} \cdot \frac{\ell}{k}\right) \cdot \frac{\cos k}{\sin k}} \]

    if -1.50000000000000002e149 < t < 3.4e13

    1. Initial program 43.0%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)} \]
    2. Taylor expanded in t around 0 66.0%

      \[\leadsto \frac{2}{\color{blue}{\frac{{k}^{2} \cdot \left(t \cdot {\sin k}^{2}\right)}{{\ell}^{2} \cdot \cos k}}} \]
    3. Step-by-step derivation
      1. associate-*r*66.0%

        \[\leadsto \frac{2}{\frac{\color{blue}{\left({k}^{2} \cdot t\right) \cdot {\sin k}^{2}}}{{\ell}^{2} \cdot \cos k}} \]
      2. times-frac66.5%

        \[\leadsto \frac{2}{\color{blue}{\frac{{k}^{2} \cdot t}{{\ell}^{2}} \cdot \frac{{\sin k}^{2}}{\cos k}}} \]
      3. unpow266.5%

        \[\leadsto \frac{2}{\frac{\color{blue}{\left(k \cdot k\right)} \cdot t}{{\ell}^{2}} \cdot \frac{{\sin k}^{2}}{\cos k}} \]
      4. associate-*l*68.8%

        \[\leadsto \frac{2}{\frac{\color{blue}{k \cdot \left(k \cdot t\right)}}{{\ell}^{2}} \cdot \frac{{\sin k}^{2}}{\cos k}} \]
      5. unpow268.8%

        \[\leadsto \frac{2}{\frac{k \cdot \left(k \cdot t\right)}{\color{blue}{\ell \cdot \ell}} \cdot \frac{{\sin k}^{2}}{\cos k}} \]
    4. Simplified68.8%

      \[\leadsto \frac{2}{\color{blue}{\frac{k \cdot \left(k \cdot t\right)}{\ell \cdot \ell} \cdot \frac{{\sin k}^{2}}{\cos k}}} \]
    5. Step-by-step derivation
      1. associate-*r/68.8%

        \[\leadsto \frac{2}{\color{blue}{\frac{\frac{k \cdot \left(k \cdot t\right)}{\ell \cdot \ell} \cdot {\sin k}^{2}}{\cos k}}} \]
      2. times-frac81.6%

        \[\leadsto \frac{2}{\frac{\color{blue}{\left(\frac{k}{\ell} \cdot \frac{k \cdot t}{\ell}\right)} \cdot {\sin k}^{2}}{\cos k}} \]
    6. Applied egg-rr81.6%

      \[\leadsto \frac{2}{\color{blue}{\frac{\left(\frac{k}{\ell} \cdot \frac{k \cdot t}{\ell}\right) \cdot {\sin k}^{2}}{\cos k}}} \]
    7. Taylor expanded in k around inf 66.0%

      \[\leadsto \frac{2}{\frac{\color{blue}{\frac{{k}^{2} \cdot \left(t \cdot {\sin k}^{2}\right)}{{\ell}^{2}}}}{\cos k}} \]
    8. Step-by-step derivation
      1. associate-*r*66.0%

        \[\leadsto \frac{2}{\frac{\frac{\color{blue}{\left({k}^{2} \cdot t\right) \cdot {\sin k}^{2}}}{{\ell}^{2}}}{\cos k}} \]
      2. unpow266.0%

        \[\leadsto \frac{2}{\frac{\frac{\left(\color{blue}{\left(k \cdot k\right)} \cdot t\right) \cdot {\sin k}^{2}}{{\ell}^{2}}}{\cos k}} \]
      3. associate-*r*68.3%

        \[\leadsto \frac{2}{\frac{\frac{\color{blue}{\left(k \cdot \left(k \cdot t\right)\right)} \cdot {\sin k}^{2}}{{\ell}^{2}}}{\cos k}} \]
      4. associate-*l/68.8%

        \[\leadsto \frac{2}{\frac{\color{blue}{\frac{k \cdot \left(k \cdot t\right)}{{\ell}^{2}} \cdot {\sin k}^{2}}}{\cos k}} \]
      5. unpow268.8%

        \[\leadsto \frac{2}{\frac{\frac{k \cdot \left(k \cdot t\right)}{\color{blue}{\ell \cdot \ell}} \cdot {\sin k}^{2}}{\cos k}} \]
      6. *-commutative68.8%

        \[\leadsto \frac{2}{\frac{\color{blue}{{\sin k}^{2} \cdot \frac{k \cdot \left(k \cdot t\right)}{\ell \cdot \ell}}}{\cos k}} \]
      7. times-frac81.6%

        \[\leadsto \frac{2}{\frac{{\sin k}^{2} \cdot \color{blue}{\left(\frac{k}{\ell} \cdot \frac{k \cdot t}{\ell}\right)}}{\cos k}} \]
      8. associate-*l/84.0%

        \[\leadsto \frac{2}{\frac{{\sin k}^{2} \cdot \left(\frac{k}{\ell} \cdot \color{blue}{\left(\frac{k}{\ell} \cdot t\right)}\right)}{\cos k}} \]
      9. *-commutative84.0%

        \[\leadsto \frac{2}{\frac{{\sin k}^{2} \cdot \left(\frac{k}{\ell} \cdot \color{blue}{\left(t \cdot \frac{k}{\ell}\right)}\right)}{\cos k}} \]
    9. Simplified84.0%

      \[\leadsto \frac{2}{\frac{\color{blue}{{\sin k}^{2} \cdot \left(\frac{k}{\ell} \cdot \left(t \cdot \frac{k}{\ell}\right)\right)}}{\cos k}} \]
    10. Step-by-step derivation
      1. div-inv84.0%

        \[\leadsto \color{blue}{2 \cdot \frac{1}{\frac{{\sin k}^{2} \cdot \left(\frac{k}{\ell} \cdot \left(t \cdot \frac{k}{\ell}\right)\right)}{\cos k}}} \]
      2. associate-/l*84.0%

        \[\leadsto 2 \cdot \frac{1}{\color{blue}{\frac{{\sin k}^{2}}{\frac{\cos k}{\frac{k}{\ell} \cdot \left(t \cdot \frac{k}{\ell}\right)}}}} \]
    11. Applied egg-rr84.0%

      \[\leadsto \color{blue}{2 \cdot \frac{1}{\frac{{\sin k}^{2}}{\frac{\cos k}{\frac{k}{\ell} \cdot \left(t \cdot \frac{k}{\ell}\right)}}}} \]
    12. Step-by-step derivation
      1. associate-*r/84.0%

        \[\leadsto \color{blue}{\frac{2 \cdot 1}{\frac{{\sin k}^{2}}{\frac{\cos k}{\frac{k}{\ell} \cdot \left(t \cdot \frac{k}{\ell}\right)}}}} \]
      2. metadata-eval84.0%

        \[\leadsto \frac{\color{blue}{2}}{\frac{{\sin k}^{2}}{\frac{\cos k}{\frac{k}{\ell} \cdot \left(t \cdot \frac{k}{\ell}\right)}}} \]
      3. associate-/r/84.0%

        \[\leadsto \color{blue}{\frac{2}{{\sin k}^{2}} \cdot \frac{\cos k}{\frac{k}{\ell} \cdot \left(t \cdot \frac{k}{\ell}\right)}} \]
      4. associate-/r*84.2%

        \[\leadsto \frac{2}{{\sin k}^{2}} \cdot \color{blue}{\frac{\frac{\cos k}{\frac{k}{\ell}}}{t \cdot \frac{k}{\ell}}} \]
      5. associate-*r/81.7%

        \[\leadsto \frac{2}{{\sin k}^{2}} \cdot \frac{\frac{\cos k}{\frac{k}{\ell}}}{\color{blue}{\frac{t \cdot k}{\ell}}} \]
      6. associate-/l*84.2%

        \[\leadsto \frac{2}{{\sin k}^{2}} \cdot \frac{\frac{\cos k}{\frac{k}{\ell}}}{\color{blue}{\frac{t}{\frac{\ell}{k}}}} \]
      7. associate-/r/84.2%

        \[\leadsto \frac{2}{{\sin k}^{2}} \cdot \color{blue}{\left(\frac{\frac{\cos k}{\frac{k}{\ell}}}{t} \cdot \frac{\ell}{k}\right)} \]
    13. Simplified84.2%

      \[\leadsto \color{blue}{\frac{2}{{\sin k}^{2}} \cdot \left(\frac{\frac{\cos k}{\frac{k}{\ell}}}{t} \cdot \frac{\ell}{k}\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification75.9%

    \[\leadsto \begin{array}{l} \mathbf{if}\;t \leq -1.5 \cdot 10^{+149} \lor \neg \left(t \leq 34000000000000\right):\\ \;\;\;\;\left(\frac{\ell}{k} \cdot \frac{\ell}{{t}^{3}}\right) \cdot \frac{\cos k}{\sin k}\\ \mathbf{else}:\\ \;\;\;\;\frac{2}{{\sin k}^{2}} \cdot \left(\frac{\frac{\cos k}{\frac{k}{\ell}}}{t} \cdot \frac{\ell}{k}\right)\\ \end{array} \]

Alternative 10: 62.7% accurate, 1.3× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;t \leq 6.6 \cdot 10^{-170}:\\ \;\;\;\;\frac{2}{\frac{k \cdot \left(t \cdot \frac{k}{\ell}\right)}{\ell} \cdot \frac{{k}^{2}}{\cos k}}\\ \mathbf{elif}\;t \leq 7800:\\ \;\;\;\;2 \cdot \left(\frac{\ell \cdot \ell}{k \cdot k} \cdot \frac{\cos k}{t \cdot {\sin k}^{2}}\right)\\ \mathbf{else}:\\ \;\;\;\;\left(\frac{\ell}{k} \cdot \frac{\ell}{{t}^{3}}\right) \cdot \frac{\cos k}{\sin k}\\ \end{array} \end{array} \]
(FPCore (t l k)
 :precision binary64
 (if (<= t 6.6e-170)
   (/ 2.0 (* (/ (* k (* t (/ k l))) l) (/ (pow k 2.0) (cos k))))
   (if (<= t 7800.0)
     (* 2.0 (* (/ (* l l) (* k k)) (/ (cos k) (* t (pow (sin k) 2.0)))))
     (* (* (/ l k) (/ l (pow t 3.0))) (/ (cos k) (sin k))))))
double code(double t, double l, double k) {
	double tmp;
	if (t <= 6.6e-170) {
		tmp = 2.0 / (((k * (t * (k / l))) / l) * (pow(k, 2.0) / cos(k)));
	} else if (t <= 7800.0) {
		tmp = 2.0 * (((l * l) / (k * k)) * (cos(k) / (t * pow(sin(k), 2.0))));
	} else {
		tmp = ((l / k) * (l / pow(t, 3.0))) * (cos(k) / sin(k));
	}
	return tmp;
}
real(8) function code(t, l, k)
    real(8), intent (in) :: t
    real(8), intent (in) :: l
    real(8), intent (in) :: k
    real(8) :: tmp
    if (t <= 6.6d-170) then
        tmp = 2.0d0 / (((k * (t * (k / l))) / l) * ((k ** 2.0d0) / cos(k)))
    else if (t <= 7800.0d0) then
        tmp = 2.0d0 * (((l * l) / (k * k)) * (cos(k) / (t * (sin(k) ** 2.0d0))))
    else
        tmp = ((l / k) * (l / (t ** 3.0d0))) * (cos(k) / sin(k))
    end if
    code = tmp
end function
public static double code(double t, double l, double k) {
	double tmp;
	if (t <= 6.6e-170) {
		tmp = 2.0 / (((k * (t * (k / l))) / l) * (Math.pow(k, 2.0) / Math.cos(k)));
	} else if (t <= 7800.0) {
		tmp = 2.0 * (((l * l) / (k * k)) * (Math.cos(k) / (t * Math.pow(Math.sin(k), 2.0))));
	} else {
		tmp = ((l / k) * (l / Math.pow(t, 3.0))) * (Math.cos(k) / Math.sin(k));
	}
	return tmp;
}
def code(t, l, k):
	tmp = 0
	if t <= 6.6e-170:
		tmp = 2.0 / (((k * (t * (k / l))) / l) * (math.pow(k, 2.0) / math.cos(k)))
	elif t <= 7800.0:
		tmp = 2.0 * (((l * l) / (k * k)) * (math.cos(k) / (t * math.pow(math.sin(k), 2.0))))
	else:
		tmp = ((l / k) * (l / math.pow(t, 3.0))) * (math.cos(k) / math.sin(k))
	return tmp
function code(t, l, k)
	tmp = 0.0
	if (t <= 6.6e-170)
		tmp = Float64(2.0 / Float64(Float64(Float64(k * Float64(t * Float64(k / l))) / l) * Float64((k ^ 2.0) / cos(k))));
	elseif (t <= 7800.0)
		tmp = Float64(2.0 * Float64(Float64(Float64(l * l) / Float64(k * k)) * Float64(cos(k) / Float64(t * (sin(k) ^ 2.0)))));
	else
		tmp = Float64(Float64(Float64(l / k) * Float64(l / (t ^ 3.0))) * Float64(cos(k) / sin(k)));
	end
	return tmp
end
function tmp_2 = code(t, l, k)
	tmp = 0.0;
	if (t <= 6.6e-170)
		tmp = 2.0 / (((k * (t * (k / l))) / l) * ((k ^ 2.0) / cos(k)));
	elseif (t <= 7800.0)
		tmp = 2.0 * (((l * l) / (k * k)) * (cos(k) / (t * (sin(k) ^ 2.0))));
	else
		tmp = ((l / k) * (l / (t ^ 3.0))) * (cos(k) / sin(k));
	end
	tmp_2 = tmp;
end
code[t_, l_, k_] := If[LessEqual[t, 6.6e-170], N[(2.0 / N[(N[(N[(k * N[(t * N[(k / l), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / l), $MachinePrecision] * N[(N[Power[k, 2.0], $MachinePrecision] / N[Cos[k], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[t, 7800.0], N[(2.0 * N[(N[(N[(l * l), $MachinePrecision] / N[(k * k), $MachinePrecision]), $MachinePrecision] * N[(N[Cos[k], $MachinePrecision] / N[(t * N[Power[N[Sin[k], $MachinePrecision], 2.0], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(N[(l / k), $MachinePrecision] * N[(l / N[Power[t, 3.0], $MachinePrecision]), $MachinePrecision]), $MachinePrecision] * N[(N[Cos[k], $MachinePrecision] / N[Sin[k], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;t \leq 6.6 \cdot 10^{-170}:\\
\;\;\;\;\frac{2}{\frac{k \cdot \left(t \cdot \frac{k}{\ell}\right)}{\ell} \cdot \frac{{k}^{2}}{\cos k}}\\

\mathbf{elif}\;t \leq 7800:\\
\;\;\;\;2 \cdot \left(\frac{\ell \cdot \ell}{k \cdot k} \cdot \frac{\cos k}{t \cdot {\sin k}^{2}}\right)\\

\mathbf{else}:\\
\;\;\;\;\left(\frac{\ell}{k} \cdot \frac{\ell}{{t}^{3}}\right) \cdot \frac{\cos k}{\sin k}\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if t < 6.60000000000000007e-170

    1. Initial program 44.3%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)} \]
    2. Taylor expanded in t around 0 59.4%

      \[\leadsto \frac{2}{\color{blue}{\frac{{k}^{2} \cdot \left(t \cdot {\sin k}^{2}\right)}{{\ell}^{2} \cdot \cos k}}} \]
    3. Step-by-step derivation
      1. associate-*r*59.4%

        \[\leadsto \frac{2}{\frac{\color{blue}{\left({k}^{2} \cdot t\right) \cdot {\sin k}^{2}}}{{\ell}^{2} \cdot \cos k}} \]
      2. times-frac60.0%

        \[\leadsto \frac{2}{\color{blue}{\frac{{k}^{2} \cdot t}{{\ell}^{2}} \cdot \frac{{\sin k}^{2}}{\cos k}}} \]
      3. unpow260.0%

        \[\leadsto \frac{2}{\frac{\color{blue}{\left(k \cdot k\right)} \cdot t}{{\ell}^{2}} \cdot \frac{{\sin k}^{2}}{\cos k}} \]
      4. associate-*l*61.9%

        \[\leadsto \frac{2}{\frac{\color{blue}{k \cdot \left(k \cdot t\right)}}{{\ell}^{2}} \cdot \frac{{\sin k}^{2}}{\cos k}} \]
      5. unpow261.9%

        \[\leadsto \frac{2}{\frac{k \cdot \left(k \cdot t\right)}{\color{blue}{\ell \cdot \ell}} \cdot \frac{{\sin k}^{2}}{\cos k}} \]
    4. Simplified61.9%

      \[\leadsto \frac{2}{\color{blue}{\frac{k \cdot \left(k \cdot t\right)}{\ell \cdot \ell} \cdot \frac{{\sin k}^{2}}{\cos k}}} \]
    5. Taylor expanded in k around 0 56.9%

      \[\leadsto \frac{2}{\frac{k \cdot \left(k \cdot t\right)}{\ell \cdot \ell} \cdot \frac{{\color{blue}{k}}^{2}}{\cos k}} \]
    6. Step-by-step derivation
      1. expm1-log1p-u36.0%

        \[\leadsto \frac{2}{\color{blue}{\mathsf{expm1}\left(\mathsf{log1p}\left(\frac{k \cdot \left(k \cdot t\right)}{\ell \cdot \ell}\right)\right)} \cdot \frac{{k}^{2}}{\cos k}} \]
      2. times-frac40.7%

        \[\leadsto \frac{2}{\mathsf{expm1}\left(\mathsf{log1p}\left(\color{blue}{\frac{k}{\ell} \cdot \frac{k \cdot t}{\ell}}\right)\right) \cdot \frac{{k}^{2}}{\cos k}} \]
    7. Applied egg-rr40.7%

      \[\leadsto \frac{2}{\color{blue}{\mathsf{expm1}\left(\mathsf{log1p}\left(\frac{k}{\ell} \cdot \frac{k \cdot t}{\ell}\right)\right)} \cdot \frac{{k}^{2}}{\cos k}} \]
    8. Step-by-step derivation
      1. expm1-log1p-u65.0%

        \[\leadsto \frac{2}{\color{blue}{\left(\frac{k}{\ell} \cdot \frac{k \cdot t}{\ell}\right)} \cdot \frac{{k}^{2}}{\cos k}} \]
      2. associate-*l/65.0%

        \[\leadsto \frac{2}{\color{blue}{\frac{k \cdot \frac{k \cdot t}{\ell}}{\ell}} \cdot \frac{{k}^{2}}{\cos k}} \]
      3. *-commutative65.0%

        \[\leadsto \frac{2}{\frac{k \cdot \frac{\color{blue}{t \cdot k}}{\ell}}{\ell} \cdot \frac{{k}^{2}}{\cos k}} \]
      4. associate-*r/65.8%

        \[\leadsto \frac{2}{\frac{k \cdot \color{blue}{\left(t \cdot \frac{k}{\ell}\right)}}{\ell} \cdot \frac{{k}^{2}}{\cos k}} \]
    9. Applied egg-rr65.8%

      \[\leadsto \frac{2}{\color{blue}{\frac{k \cdot \left(t \cdot \frac{k}{\ell}\right)}{\ell}} \cdot \frac{{k}^{2}}{\cos k}} \]

    if 6.60000000000000007e-170 < t < 7800

    1. Initial program 43.5%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)} \]
    2. Step-by-step derivation
      1. associate-/r*43.3%

        \[\leadsto \color{blue}{\frac{\frac{2}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1}} \]
      2. associate-*l*43.2%

        \[\leadsto \frac{\frac{2}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      3. sqr-neg43.2%

        \[\leadsto \frac{\frac{2}{\frac{{t}^{3}}{\color{blue}{\left(-\ell\right) \cdot \left(-\ell\right)}} \cdot \left(\sin k \cdot \tan k\right)}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      4. associate-*l*43.3%

        \[\leadsto \frac{\frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\left(-\ell\right) \cdot \left(-\ell\right)} \cdot \sin k\right) \cdot \tan k}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      5. *-commutative43.3%

        \[\leadsto \frac{\frac{2}{\color{blue}{\tan k \cdot \left(\frac{{t}^{3}}{\left(-\ell\right) \cdot \left(-\ell\right)} \cdot \sin k\right)}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      6. sqr-neg43.3%

        \[\leadsto \frac{\frac{2}{\tan k \cdot \left(\frac{{t}^{3}}{\color{blue}{\ell \cdot \ell}} \cdot \sin k\right)}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      7. associate-*l/43.2%

        \[\leadsto \frac{\frac{2}{\tan k \cdot \color{blue}{\frac{{t}^{3} \cdot \sin k}{\ell \cdot \ell}}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      8. associate-*r/43.2%

        \[\leadsto \frac{\frac{2}{\color{blue}{\frac{\tan k \cdot \left({t}^{3} \cdot \sin k\right)}{\ell \cdot \ell}}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      9. associate-/r/40.5%

        \[\leadsto \frac{\color{blue}{\frac{2}{\tan k \cdot \left({t}^{3} \cdot \sin k\right)} \cdot \left(\ell \cdot \ell\right)}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
    3. Simplified40.5%

      \[\leadsto \color{blue}{\frac{\frac{2}{\tan k \cdot \left({t}^{3} \cdot \sin k\right)} \cdot \left(\ell \cdot \ell\right)}{2 + {\left(\frac{k}{t}\right)}^{2}}} \]
    4. Taylor expanded in k around inf 80.3%

      \[\leadsto \color{blue}{2 \cdot \frac{{\ell}^{2} \cdot \cos k}{{k}^{2} \cdot \left(t \cdot {\sin k}^{2}\right)}} \]
    5. Step-by-step derivation
      1. times-frac80.3%

        \[\leadsto 2 \cdot \color{blue}{\left(\frac{{\ell}^{2}}{{k}^{2}} \cdot \frac{\cos k}{t \cdot {\sin k}^{2}}\right)} \]
      2. unpow280.3%

        \[\leadsto 2 \cdot \left(\frac{\color{blue}{\ell \cdot \ell}}{{k}^{2}} \cdot \frac{\cos k}{t \cdot {\sin k}^{2}}\right) \]
      3. unpow280.3%

        \[\leadsto 2 \cdot \left(\frac{\ell \cdot \ell}{\color{blue}{k \cdot k}} \cdot \frac{\cos k}{t \cdot {\sin k}^{2}}\right) \]
    6. Simplified80.3%

      \[\leadsto \color{blue}{2 \cdot \left(\frac{\ell \cdot \ell}{k \cdot k} \cdot \frac{\cos k}{t \cdot {\sin k}^{2}}\right)} \]

    if 7800 < t

    1. Initial program 55.4%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)} \]
    2. Step-by-step derivation
      1. associate-/r*55.6%

        \[\leadsto \color{blue}{\frac{\frac{2}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1}} \]
      2. associate-*l*49.2%

        \[\leadsto \frac{\frac{2}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      3. sqr-neg49.2%

        \[\leadsto \frac{\frac{2}{\frac{{t}^{3}}{\color{blue}{\left(-\ell\right) \cdot \left(-\ell\right)}} \cdot \left(\sin k \cdot \tan k\right)}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      4. associate-*l*55.6%

        \[\leadsto \frac{\frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\left(-\ell\right) \cdot \left(-\ell\right)} \cdot \sin k\right) \cdot \tan k}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      5. *-commutative55.6%

        \[\leadsto \frac{\frac{2}{\color{blue}{\tan k \cdot \left(\frac{{t}^{3}}{\left(-\ell\right) \cdot \left(-\ell\right)} \cdot \sin k\right)}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      6. sqr-neg55.6%

        \[\leadsto \frac{\frac{2}{\tan k \cdot \left(\frac{{t}^{3}}{\color{blue}{\ell \cdot \ell}} \cdot \sin k\right)}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      7. associate-*l/59.3%

        \[\leadsto \frac{\frac{2}{\tan k \cdot \color{blue}{\frac{{t}^{3} \cdot \sin k}{\ell \cdot \ell}}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      8. associate-*r/57.9%

        \[\leadsto \frac{\frac{2}{\color{blue}{\frac{\tan k \cdot \left({t}^{3} \cdot \sin k\right)}{\ell \cdot \ell}}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      9. associate-/r/57.9%

        \[\leadsto \frac{\color{blue}{\frac{2}{\tan k \cdot \left({t}^{3} \cdot \sin k\right)} \cdot \left(\ell \cdot \ell\right)}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
    3. Simplified57.9%

      \[\leadsto \color{blue}{\frac{\frac{2}{\tan k \cdot \left({t}^{3} \cdot \sin k\right)} \cdot \left(\ell \cdot \ell\right)}{2 + {\left(\frac{k}{t}\right)}^{2}}} \]
    4. Taylor expanded in k around 0 55.0%

      \[\leadsto \frac{\frac{2}{\tan k \cdot \left({t}^{3} \cdot \color{blue}{k}\right)} \cdot \left(\ell \cdot \ell\right)}{2 + {\left(\frac{k}{t}\right)}^{2}} \]
    5. Taylor expanded in t around inf 55.1%

      \[\leadsto \color{blue}{\frac{{\ell}^{2} \cdot \cos k}{k \cdot \left({t}^{3} \cdot \sin k\right)}} \]
    6. Step-by-step derivation
      1. associate-*r*55.1%

        \[\leadsto \frac{{\ell}^{2} \cdot \cos k}{\color{blue}{\left(k \cdot {t}^{3}\right) \cdot \sin k}} \]
      2. times-frac56.5%

        \[\leadsto \color{blue}{\frac{{\ell}^{2}}{k \cdot {t}^{3}} \cdot \frac{\cos k}{\sin k}} \]
      3. unpow256.5%

        \[\leadsto \frac{\color{blue}{\ell \cdot \ell}}{k \cdot {t}^{3}} \cdot \frac{\cos k}{\sin k} \]
      4. *-commutative56.5%

        \[\leadsto \frac{\ell \cdot \ell}{\color{blue}{{t}^{3} \cdot k}} \cdot \frac{\cos k}{\sin k} \]
      5. times-frac58.9%

        \[\leadsto \color{blue}{\left(\frac{\ell}{{t}^{3}} \cdot \frac{\ell}{k}\right)} \cdot \frac{\cos k}{\sin k} \]
    7. Simplified58.9%

      \[\leadsto \color{blue}{\left(\frac{\ell}{{t}^{3}} \cdot \frac{\ell}{k}\right) \cdot \frac{\cos k}{\sin k}} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification66.1%

    \[\leadsto \begin{array}{l} \mathbf{if}\;t \leq 6.6 \cdot 10^{-170}:\\ \;\;\;\;\frac{2}{\frac{k \cdot \left(t \cdot \frac{k}{\ell}\right)}{\ell} \cdot \frac{{k}^{2}}{\cos k}}\\ \mathbf{elif}\;t \leq 7800:\\ \;\;\;\;2 \cdot \left(\frac{\ell \cdot \ell}{k \cdot k} \cdot \frac{\cos k}{t \cdot {\sin k}^{2}}\right)\\ \mathbf{else}:\\ \;\;\;\;\left(\frac{\ell}{k} \cdot \frac{\ell}{{t}^{3}}\right) \cdot \frac{\cos k}{\sin k}\\ \end{array} \]

Alternative 11: 63.1% accurate, 1.3× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;k \leq 2.15 \cdot 10^{-133}:\\ \;\;\;\;\left(\frac{\ell}{k} \cdot \frac{\ell}{{t}^{3}}\right) \cdot \frac{\cos k}{\sin k}\\ \mathbf{elif}\;k \leq 3.8 \cdot 10^{+16}:\\ \;\;\;\;\frac{2}{\frac{k \cdot \left(t \cdot \frac{k}{\ell}\right)}{\ell} \cdot \frac{{k}^{2}}{\cos k}}\\ \mathbf{else}:\\ \;\;\;\;\frac{2}{k \cdot \left(t \cdot k\right)} \cdot \frac{\left(\ell \cdot \ell\right) \cdot \cos k}{{\sin k}^{2}}\\ \end{array} \end{array} \]
(FPCore (t l k)
 :precision binary64
 (if (<= k 2.15e-133)
   (* (* (/ l k) (/ l (pow t 3.0))) (/ (cos k) (sin k)))
   (if (<= k 3.8e+16)
     (/ 2.0 (* (/ (* k (* t (/ k l))) l) (/ (pow k 2.0) (cos k))))
     (* (/ 2.0 (* k (* t k))) (/ (* (* l l) (cos k)) (pow (sin k) 2.0))))))
double code(double t, double l, double k) {
	double tmp;
	if (k <= 2.15e-133) {
		tmp = ((l / k) * (l / pow(t, 3.0))) * (cos(k) / sin(k));
	} else if (k <= 3.8e+16) {
		tmp = 2.0 / (((k * (t * (k / l))) / l) * (pow(k, 2.0) / cos(k)));
	} else {
		tmp = (2.0 / (k * (t * k))) * (((l * l) * cos(k)) / pow(sin(k), 2.0));
	}
	return tmp;
}
real(8) function code(t, l, k)
    real(8), intent (in) :: t
    real(8), intent (in) :: l
    real(8), intent (in) :: k
    real(8) :: tmp
    if (k <= 2.15d-133) then
        tmp = ((l / k) * (l / (t ** 3.0d0))) * (cos(k) / sin(k))
    else if (k <= 3.8d+16) then
        tmp = 2.0d0 / (((k * (t * (k / l))) / l) * ((k ** 2.0d0) / cos(k)))
    else
        tmp = (2.0d0 / (k * (t * k))) * (((l * l) * cos(k)) / (sin(k) ** 2.0d0))
    end if
    code = tmp
end function
public static double code(double t, double l, double k) {
	double tmp;
	if (k <= 2.15e-133) {
		tmp = ((l / k) * (l / Math.pow(t, 3.0))) * (Math.cos(k) / Math.sin(k));
	} else if (k <= 3.8e+16) {
		tmp = 2.0 / (((k * (t * (k / l))) / l) * (Math.pow(k, 2.0) / Math.cos(k)));
	} else {
		tmp = (2.0 / (k * (t * k))) * (((l * l) * Math.cos(k)) / Math.pow(Math.sin(k), 2.0));
	}
	return tmp;
}
def code(t, l, k):
	tmp = 0
	if k <= 2.15e-133:
		tmp = ((l / k) * (l / math.pow(t, 3.0))) * (math.cos(k) / math.sin(k))
	elif k <= 3.8e+16:
		tmp = 2.0 / (((k * (t * (k / l))) / l) * (math.pow(k, 2.0) / math.cos(k)))
	else:
		tmp = (2.0 / (k * (t * k))) * (((l * l) * math.cos(k)) / math.pow(math.sin(k), 2.0))
	return tmp
function code(t, l, k)
	tmp = 0.0
	if (k <= 2.15e-133)
		tmp = Float64(Float64(Float64(l / k) * Float64(l / (t ^ 3.0))) * Float64(cos(k) / sin(k)));
	elseif (k <= 3.8e+16)
		tmp = Float64(2.0 / Float64(Float64(Float64(k * Float64(t * Float64(k / l))) / l) * Float64((k ^ 2.0) / cos(k))));
	else
		tmp = Float64(Float64(2.0 / Float64(k * Float64(t * k))) * Float64(Float64(Float64(l * l) * cos(k)) / (sin(k) ^ 2.0)));
	end
	return tmp
end
function tmp_2 = code(t, l, k)
	tmp = 0.0;
	if (k <= 2.15e-133)
		tmp = ((l / k) * (l / (t ^ 3.0))) * (cos(k) / sin(k));
	elseif (k <= 3.8e+16)
		tmp = 2.0 / (((k * (t * (k / l))) / l) * ((k ^ 2.0) / cos(k)));
	else
		tmp = (2.0 / (k * (t * k))) * (((l * l) * cos(k)) / (sin(k) ^ 2.0));
	end
	tmp_2 = tmp;
end
code[t_, l_, k_] := If[LessEqual[k, 2.15e-133], N[(N[(N[(l / k), $MachinePrecision] * N[(l / N[Power[t, 3.0], $MachinePrecision]), $MachinePrecision]), $MachinePrecision] * N[(N[Cos[k], $MachinePrecision] / N[Sin[k], $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[k, 3.8e+16], N[(2.0 / N[(N[(N[(k * N[(t * N[(k / l), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / l), $MachinePrecision] * N[(N[Power[k, 2.0], $MachinePrecision] / N[Cos[k], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(2.0 / N[(k * N[(t * k), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] * N[(N[(N[(l * l), $MachinePrecision] * N[Cos[k], $MachinePrecision]), $MachinePrecision] / N[Power[N[Sin[k], $MachinePrecision], 2.0], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;k \leq 2.15 \cdot 10^{-133}:\\
\;\;\;\;\left(\frac{\ell}{k} \cdot \frac{\ell}{{t}^{3}}\right) \cdot \frac{\cos k}{\sin k}\\

\mathbf{elif}\;k \leq 3.8 \cdot 10^{+16}:\\
\;\;\;\;\frac{2}{\frac{k \cdot \left(t \cdot \frac{k}{\ell}\right)}{\ell} \cdot \frac{{k}^{2}}{\cos k}}\\

\mathbf{else}:\\
\;\;\;\;\frac{2}{k \cdot \left(t \cdot k\right)} \cdot \frac{\left(\ell \cdot \ell\right) \cdot \cos k}{{\sin k}^{2}}\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if k < 2.15000000000000008e-133

    1. Initial program 48.9%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)} \]
    2. Step-by-step derivation
      1. associate-/r*49.0%

        \[\leadsto \color{blue}{\frac{\frac{2}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1}} \]
      2. associate-*l*44.9%

        \[\leadsto \frac{\frac{2}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      3. sqr-neg44.9%

        \[\leadsto \frac{\frac{2}{\frac{{t}^{3}}{\color{blue}{\left(-\ell\right) \cdot \left(-\ell\right)}} \cdot \left(\sin k \cdot \tan k\right)}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      4. associate-*l*49.0%

        \[\leadsto \frac{\frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\left(-\ell\right) \cdot \left(-\ell\right)} \cdot \sin k\right) \cdot \tan k}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      5. *-commutative49.0%

        \[\leadsto \frac{\frac{2}{\color{blue}{\tan k \cdot \left(\frac{{t}^{3}}{\left(-\ell\right) \cdot \left(-\ell\right)} \cdot \sin k\right)}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      6. sqr-neg49.0%

        \[\leadsto \frac{\frac{2}{\tan k \cdot \left(\frac{{t}^{3}}{\color{blue}{\ell \cdot \ell}} \cdot \sin k\right)}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      7. associate-*l/50.4%

        \[\leadsto \frac{\frac{2}{\tan k \cdot \color{blue}{\frac{{t}^{3} \cdot \sin k}{\ell \cdot \ell}}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      8. associate-*r/49.8%

        \[\leadsto \frac{\frac{2}{\color{blue}{\frac{\tan k \cdot \left({t}^{3} \cdot \sin k\right)}{\ell \cdot \ell}}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      9. associate-/r/49.2%

        \[\leadsto \frac{\color{blue}{\frac{2}{\tan k \cdot \left({t}^{3} \cdot \sin k\right)} \cdot \left(\ell \cdot \ell\right)}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
    3. Simplified49.2%

      \[\leadsto \color{blue}{\frac{\frac{2}{\tan k \cdot \left({t}^{3} \cdot \sin k\right)} \cdot \left(\ell \cdot \ell\right)}{2 + {\left(\frac{k}{t}\right)}^{2}}} \]
    4. Taylor expanded in k around 0 49.3%

      \[\leadsto \frac{\frac{2}{\tan k \cdot \left({t}^{3} \cdot \color{blue}{k}\right)} \cdot \left(\ell \cdot \ell\right)}{2 + {\left(\frac{k}{t}\right)}^{2}} \]
    5. Taylor expanded in t around inf 50.4%

      \[\leadsto \color{blue}{\frac{{\ell}^{2} \cdot \cos k}{k \cdot \left({t}^{3} \cdot \sin k\right)}} \]
    6. Step-by-step derivation
      1. associate-*r*50.4%

        \[\leadsto \frac{{\ell}^{2} \cdot \cos k}{\color{blue}{\left(k \cdot {t}^{3}\right) \cdot \sin k}} \]
      2. times-frac51.0%

        \[\leadsto \color{blue}{\frac{{\ell}^{2}}{k \cdot {t}^{3}} \cdot \frac{\cos k}{\sin k}} \]
      3. unpow251.0%

        \[\leadsto \frac{\color{blue}{\ell \cdot \ell}}{k \cdot {t}^{3}} \cdot \frac{\cos k}{\sin k} \]
      4. *-commutative51.0%

        \[\leadsto \frac{\ell \cdot \ell}{\color{blue}{{t}^{3} \cdot k}} \cdot \frac{\cos k}{\sin k} \]
      5. times-frac55.5%

        \[\leadsto \color{blue}{\left(\frac{\ell}{{t}^{3}} \cdot \frac{\ell}{k}\right)} \cdot \frac{\cos k}{\sin k} \]
    7. Simplified55.5%

      \[\leadsto \color{blue}{\left(\frac{\ell}{{t}^{3}} \cdot \frac{\ell}{k}\right) \cdot \frac{\cos k}{\sin k}} \]

    if 2.15000000000000008e-133 < k < 3.8e16

    1. Initial program 50.5%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)} \]
    2. Taylor expanded in t around 0 58.2%

      \[\leadsto \frac{2}{\color{blue}{\frac{{k}^{2} \cdot \left(t \cdot {\sin k}^{2}\right)}{{\ell}^{2} \cdot \cos k}}} \]
    3. Step-by-step derivation
      1. associate-*r*58.2%

        \[\leadsto \frac{2}{\frac{\color{blue}{\left({k}^{2} \cdot t\right) \cdot {\sin k}^{2}}}{{\ell}^{2} \cdot \cos k}} \]
      2. times-frac58.4%

        \[\leadsto \frac{2}{\color{blue}{\frac{{k}^{2} \cdot t}{{\ell}^{2}} \cdot \frac{{\sin k}^{2}}{\cos k}}} \]
      3. unpow258.4%

        \[\leadsto \frac{2}{\frac{\color{blue}{\left(k \cdot k\right)} \cdot t}{{\ell}^{2}} \cdot \frac{{\sin k}^{2}}{\cos k}} \]
      4. associate-*l*58.4%

        \[\leadsto \frac{2}{\frac{\color{blue}{k \cdot \left(k \cdot t\right)}}{{\ell}^{2}} \cdot \frac{{\sin k}^{2}}{\cos k}} \]
      5. unpow258.4%

        \[\leadsto \frac{2}{\frac{k \cdot \left(k \cdot t\right)}{\color{blue}{\ell \cdot \ell}} \cdot \frac{{\sin k}^{2}}{\cos k}} \]
    4. Simplified58.4%

      \[\leadsto \frac{2}{\color{blue}{\frac{k \cdot \left(k \cdot t\right)}{\ell \cdot \ell} \cdot \frac{{\sin k}^{2}}{\cos k}}} \]
    5. Taylor expanded in k around 0 57.7%

      \[\leadsto \frac{2}{\frac{k \cdot \left(k \cdot t\right)}{\ell \cdot \ell} \cdot \frac{{\color{blue}{k}}^{2}}{\cos k}} \]
    6. Step-by-step derivation
      1. expm1-log1p-u48.4%

        \[\leadsto \frac{2}{\color{blue}{\mathsf{expm1}\left(\mathsf{log1p}\left(\frac{k \cdot \left(k \cdot t\right)}{\ell \cdot \ell}\right)\right)} \cdot \frac{{k}^{2}}{\cos k}} \]
      2. times-frac53.6%

        \[\leadsto \frac{2}{\mathsf{expm1}\left(\mathsf{log1p}\left(\color{blue}{\frac{k}{\ell} \cdot \frac{k \cdot t}{\ell}}\right)\right) \cdot \frac{{k}^{2}}{\cos k}} \]
    7. Applied egg-rr53.6%

      \[\leadsto \frac{2}{\color{blue}{\mathsf{expm1}\left(\mathsf{log1p}\left(\frac{k}{\ell} \cdot \frac{k \cdot t}{\ell}\right)\right)} \cdot \frac{{k}^{2}}{\cos k}} \]
    8. Step-by-step derivation
      1. expm1-log1p-u68.9%

        \[\leadsto \frac{2}{\color{blue}{\left(\frac{k}{\ell} \cdot \frac{k \cdot t}{\ell}\right)} \cdot \frac{{k}^{2}}{\cos k}} \]
      2. associate-*l/68.8%

        \[\leadsto \frac{2}{\color{blue}{\frac{k \cdot \frac{k \cdot t}{\ell}}{\ell}} \cdot \frac{{k}^{2}}{\cos k}} \]
      3. *-commutative68.8%

        \[\leadsto \frac{2}{\frac{k \cdot \frac{\color{blue}{t \cdot k}}{\ell}}{\ell} \cdot \frac{{k}^{2}}{\cos k}} \]
      4. associate-*r/72.8%

        \[\leadsto \frac{2}{\frac{k \cdot \color{blue}{\left(t \cdot \frac{k}{\ell}\right)}}{\ell} \cdot \frac{{k}^{2}}{\cos k}} \]
    9. Applied egg-rr72.8%

      \[\leadsto \frac{2}{\color{blue}{\frac{k \cdot \left(t \cdot \frac{k}{\ell}\right)}{\ell}} \cdot \frac{{k}^{2}}{\cos k}} \]

    if 3.8e16 < k

    1. Initial program 38.2%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)} \]
    2. Step-by-step derivation
      1. associate-/r*38.2%

        \[\leadsto \color{blue}{\frac{\frac{2}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1}} \]
      2. associate-*l*38.2%

        \[\leadsto \frac{\frac{2}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      3. sqr-neg38.2%

        \[\leadsto \frac{\frac{2}{\frac{{t}^{3}}{\color{blue}{\left(-\ell\right) \cdot \left(-\ell\right)}} \cdot \left(\sin k \cdot \tan k\right)}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      4. associate-*l*38.2%

        \[\leadsto \frac{\frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\left(-\ell\right) \cdot \left(-\ell\right)} \cdot \sin k\right) \cdot \tan k}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      5. *-commutative38.2%

        \[\leadsto \frac{\frac{2}{\color{blue}{\tan k \cdot \left(\frac{{t}^{3}}{\left(-\ell\right) \cdot \left(-\ell\right)} \cdot \sin k\right)}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      6. sqr-neg38.2%

        \[\leadsto \frac{\frac{2}{\tan k \cdot \left(\frac{{t}^{3}}{\color{blue}{\ell \cdot \ell}} \cdot \sin k\right)}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      7. associate-*l/38.2%

        \[\leadsto \frac{\frac{2}{\tan k \cdot \color{blue}{\frac{{t}^{3} \cdot \sin k}{\ell \cdot \ell}}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      8. associate-*r/38.2%

        \[\leadsto \frac{\frac{2}{\color{blue}{\frac{\tan k \cdot \left({t}^{3} \cdot \sin k\right)}{\ell \cdot \ell}}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      9. associate-/r/38.2%

        \[\leadsto \frac{\color{blue}{\frac{2}{\tan k \cdot \left({t}^{3} \cdot \sin k\right)} \cdot \left(\ell \cdot \ell\right)}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
    3. Simplified38.2%

      \[\leadsto \color{blue}{\frac{\frac{2}{\tan k \cdot \left({t}^{3} \cdot \sin k\right)} \cdot \left(\ell \cdot \ell\right)}{2 + {\left(\frac{k}{t}\right)}^{2}}} \]
    4. Taylor expanded in k around inf 67.9%

      \[\leadsto \color{blue}{2 \cdot \frac{{\ell}^{2} \cdot \cos k}{{k}^{2} \cdot \left(t \cdot {\sin k}^{2}\right)}} \]
    5. Step-by-step derivation
      1. associate-*r/67.9%

        \[\leadsto \color{blue}{\frac{2 \cdot \left({\ell}^{2} \cdot \cos k\right)}{{k}^{2} \cdot \left(t \cdot {\sin k}^{2}\right)}} \]
      2. associate-*r*68.0%

        \[\leadsto \frac{2 \cdot \left({\ell}^{2} \cdot \cos k\right)}{\color{blue}{\left({k}^{2} \cdot t\right) \cdot {\sin k}^{2}}} \]
      3. times-frac68.0%

        \[\leadsto \color{blue}{\frac{2}{{k}^{2} \cdot t} \cdot \frac{{\ell}^{2} \cdot \cos k}{{\sin k}^{2}}} \]
      4. unpow268.0%

        \[\leadsto \frac{2}{\color{blue}{\left(k \cdot k\right)} \cdot t} \cdot \frac{{\ell}^{2} \cdot \cos k}{{\sin k}^{2}} \]
      5. associate-*l*71.8%

        \[\leadsto \frac{2}{\color{blue}{k \cdot \left(k \cdot t\right)}} \cdot \frac{{\ell}^{2} \cdot \cos k}{{\sin k}^{2}} \]
      6. unpow271.8%

        \[\leadsto \frac{2}{k \cdot \left(k \cdot t\right)} \cdot \frac{\color{blue}{\left(\ell \cdot \ell\right)} \cdot \cos k}{{\sin k}^{2}} \]
    6. Simplified71.8%

      \[\leadsto \color{blue}{\frac{2}{k \cdot \left(k \cdot t\right)} \cdot \frac{\left(\ell \cdot \ell\right) \cdot \cos k}{{\sin k}^{2}}} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification61.0%

    \[\leadsto \begin{array}{l} \mathbf{if}\;k \leq 2.15 \cdot 10^{-133}:\\ \;\;\;\;\left(\frac{\ell}{k} \cdot \frac{\ell}{{t}^{3}}\right) \cdot \frac{\cos k}{\sin k}\\ \mathbf{elif}\;k \leq 3.8 \cdot 10^{+16}:\\ \;\;\;\;\frac{2}{\frac{k \cdot \left(t \cdot \frac{k}{\ell}\right)}{\ell} \cdot \frac{{k}^{2}}{\cos k}}\\ \mathbf{else}:\\ \;\;\;\;\frac{2}{k \cdot \left(t \cdot k\right)} \cdot \frac{\left(\ell \cdot \ell\right) \cdot \cos k}{{\sin k}^{2}}\\ \end{array} \]

Alternative 12: 68.9% accurate, 1.3× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;t \leq 15000000000000:\\ \;\;\;\;\cos k \cdot \frac{2}{{\sin k}^{2} \cdot \left(\frac{k}{\ell} \cdot \left(t \cdot \frac{k}{\ell}\right)\right)}\\ \mathbf{else}:\\ \;\;\;\;\left(\frac{\ell}{k} \cdot \frac{\ell}{{t}^{3}}\right) \cdot \frac{\cos k}{\sin k}\\ \end{array} \end{array} \]
(FPCore (t l k)
 :precision binary64
 (if (<= t 15000000000000.0)
   (* (cos k) (/ 2.0 (* (pow (sin k) 2.0) (* (/ k l) (* t (/ k l))))))
   (* (* (/ l k) (/ l (pow t 3.0))) (/ (cos k) (sin k)))))
double code(double t, double l, double k) {
	double tmp;
	if (t <= 15000000000000.0) {
		tmp = cos(k) * (2.0 / (pow(sin(k), 2.0) * ((k / l) * (t * (k / l)))));
	} else {
		tmp = ((l / k) * (l / pow(t, 3.0))) * (cos(k) / sin(k));
	}
	return tmp;
}
real(8) function code(t, l, k)
    real(8), intent (in) :: t
    real(8), intent (in) :: l
    real(8), intent (in) :: k
    real(8) :: tmp
    if (t <= 15000000000000.0d0) then
        tmp = cos(k) * (2.0d0 / ((sin(k) ** 2.0d0) * ((k / l) * (t * (k / l)))))
    else
        tmp = ((l / k) * (l / (t ** 3.0d0))) * (cos(k) / sin(k))
    end if
    code = tmp
end function
public static double code(double t, double l, double k) {
	double tmp;
	if (t <= 15000000000000.0) {
		tmp = Math.cos(k) * (2.0 / (Math.pow(Math.sin(k), 2.0) * ((k / l) * (t * (k / l)))));
	} else {
		tmp = ((l / k) * (l / Math.pow(t, 3.0))) * (Math.cos(k) / Math.sin(k));
	}
	return tmp;
}
def code(t, l, k):
	tmp = 0
	if t <= 15000000000000.0:
		tmp = math.cos(k) * (2.0 / (math.pow(math.sin(k), 2.0) * ((k / l) * (t * (k / l)))))
	else:
		tmp = ((l / k) * (l / math.pow(t, 3.0))) * (math.cos(k) / math.sin(k))
	return tmp
function code(t, l, k)
	tmp = 0.0
	if (t <= 15000000000000.0)
		tmp = Float64(cos(k) * Float64(2.0 / Float64((sin(k) ^ 2.0) * Float64(Float64(k / l) * Float64(t * Float64(k / l))))));
	else
		tmp = Float64(Float64(Float64(l / k) * Float64(l / (t ^ 3.0))) * Float64(cos(k) / sin(k)));
	end
	return tmp
end
function tmp_2 = code(t, l, k)
	tmp = 0.0;
	if (t <= 15000000000000.0)
		tmp = cos(k) * (2.0 / ((sin(k) ^ 2.0) * ((k / l) * (t * (k / l)))));
	else
		tmp = ((l / k) * (l / (t ^ 3.0))) * (cos(k) / sin(k));
	end
	tmp_2 = tmp;
end
code[t_, l_, k_] := If[LessEqual[t, 15000000000000.0], N[(N[Cos[k], $MachinePrecision] * N[(2.0 / N[(N[Power[N[Sin[k], $MachinePrecision], 2.0], $MachinePrecision] * N[(N[(k / l), $MachinePrecision] * N[(t * N[(k / l), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(N[(l / k), $MachinePrecision] * N[(l / N[Power[t, 3.0], $MachinePrecision]), $MachinePrecision]), $MachinePrecision] * N[(N[Cos[k], $MachinePrecision] / N[Sin[k], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;t \leq 15000000000000:\\
\;\;\;\;\cos k \cdot \frac{2}{{\sin k}^{2} \cdot \left(\frac{k}{\ell} \cdot \left(t \cdot \frac{k}{\ell}\right)\right)}\\

\mathbf{else}:\\
\;\;\;\;\left(\frac{\ell}{k} \cdot \frac{\ell}{{t}^{3}}\right) \cdot \frac{\cos k}{\sin k}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if t < 1.5e13

    1. Initial program 44.6%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)} \]
    2. Taylor expanded in t around 0 63.0%

      \[\leadsto \frac{2}{\color{blue}{\frac{{k}^{2} \cdot \left(t \cdot {\sin k}^{2}\right)}{{\ell}^{2} \cdot \cos k}}} \]
    3. Step-by-step derivation
      1. associate-*r*63.0%

        \[\leadsto \frac{2}{\frac{\color{blue}{\left({k}^{2} \cdot t\right) \cdot {\sin k}^{2}}}{{\ell}^{2} \cdot \cos k}} \]
      2. times-frac63.4%

        \[\leadsto \frac{2}{\color{blue}{\frac{{k}^{2} \cdot t}{{\ell}^{2}} \cdot \frac{{\sin k}^{2}}{\cos k}}} \]
      3. unpow263.4%

        \[\leadsto \frac{2}{\frac{\color{blue}{\left(k \cdot k\right)} \cdot t}{{\ell}^{2}} \cdot \frac{{\sin k}^{2}}{\cos k}} \]
      4. associate-*l*65.4%

        \[\leadsto \frac{2}{\frac{\color{blue}{k \cdot \left(k \cdot t\right)}}{{\ell}^{2}} \cdot \frac{{\sin k}^{2}}{\cos k}} \]
      5. unpow265.4%

        \[\leadsto \frac{2}{\frac{k \cdot \left(k \cdot t\right)}{\color{blue}{\ell \cdot \ell}} \cdot \frac{{\sin k}^{2}}{\cos k}} \]
    4. Simplified65.4%

      \[\leadsto \frac{2}{\color{blue}{\frac{k \cdot \left(k \cdot t\right)}{\ell \cdot \ell} \cdot \frac{{\sin k}^{2}}{\cos k}}} \]
    5. Step-by-step derivation
      1. associate-*r/65.4%

        \[\leadsto \frac{2}{\color{blue}{\frac{\frac{k \cdot \left(k \cdot t\right)}{\ell \cdot \ell} \cdot {\sin k}^{2}}{\cos k}}} \]
      2. times-frac76.6%

        \[\leadsto \frac{2}{\frac{\color{blue}{\left(\frac{k}{\ell} \cdot \frac{k \cdot t}{\ell}\right)} \cdot {\sin k}^{2}}{\cos k}} \]
    6. Applied egg-rr76.6%

      \[\leadsto \frac{2}{\color{blue}{\frac{\left(\frac{k}{\ell} \cdot \frac{k \cdot t}{\ell}\right) \cdot {\sin k}^{2}}{\cos k}}} \]
    7. Taylor expanded in k around inf 63.0%

      \[\leadsto \frac{2}{\frac{\color{blue}{\frac{{k}^{2} \cdot \left(t \cdot {\sin k}^{2}\right)}{{\ell}^{2}}}}{\cos k}} \]
    8. Step-by-step derivation
      1. associate-*r*63.0%

        \[\leadsto \frac{2}{\frac{\frac{\color{blue}{\left({k}^{2} \cdot t\right) \cdot {\sin k}^{2}}}{{\ell}^{2}}}{\cos k}} \]
      2. unpow263.0%

        \[\leadsto \frac{2}{\frac{\frac{\left(\color{blue}{\left(k \cdot k\right)} \cdot t\right) \cdot {\sin k}^{2}}{{\ell}^{2}}}{\cos k}} \]
      3. associate-*r*65.0%

        \[\leadsto \frac{2}{\frac{\frac{\color{blue}{\left(k \cdot \left(k \cdot t\right)\right)} \cdot {\sin k}^{2}}{{\ell}^{2}}}{\cos k}} \]
      4. associate-*l/65.4%

        \[\leadsto \frac{2}{\frac{\color{blue}{\frac{k \cdot \left(k \cdot t\right)}{{\ell}^{2}} \cdot {\sin k}^{2}}}{\cos k}} \]
      5. unpow265.4%

        \[\leadsto \frac{2}{\frac{\frac{k \cdot \left(k \cdot t\right)}{\color{blue}{\ell \cdot \ell}} \cdot {\sin k}^{2}}{\cos k}} \]
      6. *-commutative65.4%

        \[\leadsto \frac{2}{\frac{\color{blue}{{\sin k}^{2} \cdot \frac{k \cdot \left(k \cdot t\right)}{\ell \cdot \ell}}}{\cos k}} \]
      7. times-frac76.6%

        \[\leadsto \frac{2}{\frac{{\sin k}^{2} \cdot \color{blue}{\left(\frac{k}{\ell} \cdot \frac{k \cdot t}{\ell}\right)}}{\cos k}} \]
      8. associate-*l/78.7%

        \[\leadsto \frac{2}{\frac{{\sin k}^{2} \cdot \left(\frac{k}{\ell} \cdot \color{blue}{\left(\frac{k}{\ell} \cdot t\right)}\right)}{\cos k}} \]
      9. *-commutative78.7%

        \[\leadsto \frac{2}{\frac{{\sin k}^{2} \cdot \left(\frac{k}{\ell} \cdot \color{blue}{\left(t \cdot \frac{k}{\ell}\right)}\right)}{\cos k}} \]
    9. Simplified78.7%

      \[\leadsto \frac{2}{\frac{\color{blue}{{\sin k}^{2} \cdot \left(\frac{k}{\ell} \cdot \left(t \cdot \frac{k}{\ell}\right)\right)}}{\cos k}} \]
    10. Step-by-step derivation
      1. associate-/r/78.7%

        \[\leadsto \color{blue}{\frac{2}{{\sin k}^{2} \cdot \left(\frac{k}{\ell} \cdot \left(t \cdot \frac{k}{\ell}\right)\right)} \cdot \cos k} \]
    11. Applied egg-rr78.7%

      \[\leadsto \color{blue}{\frac{2}{{\sin k}^{2} \cdot \left(\frac{k}{\ell} \cdot \left(t \cdot \frac{k}{\ell}\right)\right)} \cdot \cos k} \]

    if 1.5e13 < t

    1. Initial program 54.8%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)} \]
    2. Step-by-step derivation
      1. associate-/r*55.1%

        \[\leadsto \color{blue}{\frac{\frac{2}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1}} \]
      2. associate-*l*48.1%

        \[\leadsto \frac{\frac{2}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      3. sqr-neg48.1%

        \[\leadsto \frac{\frac{2}{\frac{{t}^{3}}{\color{blue}{\left(-\ell\right) \cdot \left(-\ell\right)}} \cdot \left(\sin k \cdot \tan k\right)}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      4. associate-*l*55.1%

        \[\leadsto \frac{\frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\left(-\ell\right) \cdot \left(-\ell\right)} \cdot \sin k\right) \cdot \tan k}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      5. *-commutative55.1%

        \[\leadsto \frac{\frac{2}{\color{blue}{\tan k \cdot \left(\frac{{t}^{3}}{\left(-\ell\right) \cdot \left(-\ell\right)} \cdot \sin k\right)}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      6. sqr-neg55.1%

        \[\leadsto \frac{\frac{2}{\tan k \cdot \left(\frac{{t}^{3}}{\color{blue}{\ell \cdot \ell}} \cdot \sin k\right)}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      7. associate-*l/59.1%

        \[\leadsto \frac{\frac{2}{\tan k \cdot \color{blue}{\frac{{t}^{3} \cdot \sin k}{\ell \cdot \ell}}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      8. associate-*r/57.6%

        \[\leadsto \frac{\frac{2}{\color{blue}{\frac{\tan k \cdot \left({t}^{3} \cdot \sin k\right)}{\ell \cdot \ell}}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      9. associate-/r/57.6%

        \[\leadsto \frac{\color{blue}{\frac{2}{\tan k \cdot \left({t}^{3} \cdot \sin k\right)} \cdot \left(\ell \cdot \ell\right)}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
    3. Simplified57.6%

      \[\leadsto \color{blue}{\frac{\frac{2}{\tan k \cdot \left({t}^{3} \cdot \sin k\right)} \cdot \left(\ell \cdot \ell\right)}{2 + {\left(\frac{k}{t}\right)}^{2}}} \]
    4. Taylor expanded in k around 0 56.0%

      \[\leadsto \frac{\frac{2}{\tan k \cdot \left({t}^{3} \cdot \color{blue}{k}\right)} \cdot \left(\ell \cdot \ell\right)}{2 + {\left(\frac{k}{t}\right)}^{2}} \]
    5. Taylor expanded in t around inf 55.9%

      \[\leadsto \color{blue}{\frac{{\ell}^{2} \cdot \cos k}{k \cdot \left({t}^{3} \cdot \sin k\right)}} \]
    6. Step-by-step derivation
      1. associate-*r*55.9%

        \[\leadsto \frac{{\ell}^{2} \cdot \cos k}{\color{blue}{\left(k \cdot {t}^{3}\right) \cdot \sin k}} \]
      2. times-frac57.5%

        \[\leadsto \color{blue}{\frac{{\ell}^{2}}{k \cdot {t}^{3}} \cdot \frac{\cos k}{\sin k}} \]
      3. unpow257.5%

        \[\leadsto \frac{\color{blue}{\ell \cdot \ell}}{k \cdot {t}^{3}} \cdot \frac{\cos k}{\sin k} \]
      4. *-commutative57.5%

        \[\leadsto \frac{\ell \cdot \ell}{\color{blue}{{t}^{3} \cdot k}} \cdot \frac{\cos k}{\sin k} \]
      5. times-frac60.0%

        \[\leadsto \color{blue}{\left(\frac{\ell}{{t}^{3}} \cdot \frac{\ell}{k}\right)} \cdot \frac{\cos k}{\sin k} \]
    7. Simplified60.0%

      \[\leadsto \color{blue}{\left(\frac{\ell}{{t}^{3}} \cdot \frac{\ell}{k}\right) \cdot \frac{\cos k}{\sin k}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification74.2%

    \[\leadsto \begin{array}{l} \mathbf{if}\;t \leq 15000000000000:\\ \;\;\;\;\cos k \cdot \frac{2}{{\sin k}^{2} \cdot \left(\frac{k}{\ell} \cdot \left(t \cdot \frac{k}{\ell}\right)\right)}\\ \mathbf{else}:\\ \;\;\;\;\left(\frac{\ell}{k} \cdot \frac{\ell}{{t}^{3}}\right) \cdot \frac{\cos k}{\sin k}\\ \end{array} \]

Alternative 13: 63.0% accurate, 1.3× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;t \leq 1.6 \cdot 10^{-70}:\\ \;\;\;\;\frac{2}{\frac{k \cdot \left(t \cdot \frac{k}{\ell}\right)}{\ell} \cdot \frac{{k}^{2}}{\cos k}}\\ \mathbf{else}:\\ \;\;\;\;\left(\frac{\ell}{k} \cdot \frac{\ell}{{t}^{3}}\right) \cdot \frac{\cos k}{\sin k}\\ \end{array} \end{array} \]
(FPCore (t l k)
 :precision binary64
 (if (<= t 1.6e-70)
   (/ 2.0 (* (/ (* k (* t (/ k l))) l) (/ (pow k 2.0) (cos k))))
   (* (* (/ l k) (/ l (pow t 3.0))) (/ (cos k) (sin k)))))
double code(double t, double l, double k) {
	double tmp;
	if (t <= 1.6e-70) {
		tmp = 2.0 / (((k * (t * (k / l))) / l) * (pow(k, 2.0) / cos(k)));
	} else {
		tmp = ((l / k) * (l / pow(t, 3.0))) * (cos(k) / sin(k));
	}
	return tmp;
}
real(8) function code(t, l, k)
    real(8), intent (in) :: t
    real(8), intent (in) :: l
    real(8), intent (in) :: k
    real(8) :: tmp
    if (t <= 1.6d-70) then
        tmp = 2.0d0 / (((k * (t * (k / l))) / l) * ((k ** 2.0d0) / cos(k)))
    else
        tmp = ((l / k) * (l / (t ** 3.0d0))) * (cos(k) / sin(k))
    end if
    code = tmp
end function
public static double code(double t, double l, double k) {
	double tmp;
	if (t <= 1.6e-70) {
		tmp = 2.0 / (((k * (t * (k / l))) / l) * (Math.pow(k, 2.0) / Math.cos(k)));
	} else {
		tmp = ((l / k) * (l / Math.pow(t, 3.0))) * (Math.cos(k) / Math.sin(k));
	}
	return tmp;
}
def code(t, l, k):
	tmp = 0
	if t <= 1.6e-70:
		tmp = 2.0 / (((k * (t * (k / l))) / l) * (math.pow(k, 2.0) / math.cos(k)))
	else:
		tmp = ((l / k) * (l / math.pow(t, 3.0))) * (math.cos(k) / math.sin(k))
	return tmp
function code(t, l, k)
	tmp = 0.0
	if (t <= 1.6e-70)
		tmp = Float64(2.0 / Float64(Float64(Float64(k * Float64(t * Float64(k / l))) / l) * Float64((k ^ 2.0) / cos(k))));
	else
		tmp = Float64(Float64(Float64(l / k) * Float64(l / (t ^ 3.0))) * Float64(cos(k) / sin(k)));
	end
	return tmp
end
function tmp_2 = code(t, l, k)
	tmp = 0.0;
	if (t <= 1.6e-70)
		tmp = 2.0 / (((k * (t * (k / l))) / l) * ((k ^ 2.0) / cos(k)));
	else
		tmp = ((l / k) * (l / (t ^ 3.0))) * (cos(k) / sin(k));
	end
	tmp_2 = tmp;
end
code[t_, l_, k_] := If[LessEqual[t, 1.6e-70], N[(2.0 / N[(N[(N[(k * N[(t * N[(k / l), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / l), $MachinePrecision] * N[(N[Power[k, 2.0], $MachinePrecision] / N[Cos[k], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(N[(l / k), $MachinePrecision] * N[(l / N[Power[t, 3.0], $MachinePrecision]), $MachinePrecision]), $MachinePrecision] * N[(N[Cos[k], $MachinePrecision] / N[Sin[k], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;t \leq 1.6 \cdot 10^{-70}:\\
\;\;\;\;\frac{2}{\frac{k \cdot \left(t \cdot \frac{k}{\ell}\right)}{\ell} \cdot \frac{{k}^{2}}{\cos k}}\\

\mathbf{else}:\\
\;\;\;\;\left(\frac{\ell}{k} \cdot \frac{\ell}{{t}^{3}}\right) \cdot \frac{\cos k}{\sin k}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if t < 1.5999999999999999e-70

    1. Initial program 42.4%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)} \]
    2. Taylor expanded in t around 0 62.4%

      \[\leadsto \frac{2}{\color{blue}{\frac{{k}^{2} \cdot \left(t \cdot {\sin k}^{2}\right)}{{\ell}^{2} \cdot \cos k}}} \]
    3. Step-by-step derivation
      1. associate-*r*62.4%

        \[\leadsto \frac{2}{\frac{\color{blue}{\left({k}^{2} \cdot t\right) \cdot {\sin k}^{2}}}{{\ell}^{2} \cdot \cos k}} \]
      2. times-frac62.9%

        \[\leadsto \frac{2}{\color{blue}{\frac{{k}^{2} \cdot t}{{\ell}^{2}} \cdot \frac{{\sin k}^{2}}{\cos k}}} \]
      3. unpow262.9%

        \[\leadsto \frac{2}{\frac{\color{blue}{\left(k \cdot k\right)} \cdot t}{{\ell}^{2}} \cdot \frac{{\sin k}^{2}}{\cos k}} \]
      4. associate-*l*65.1%

        \[\leadsto \frac{2}{\frac{\color{blue}{k \cdot \left(k \cdot t\right)}}{{\ell}^{2}} \cdot \frac{{\sin k}^{2}}{\cos k}} \]
      5. unpow265.1%

        \[\leadsto \frac{2}{\frac{k \cdot \left(k \cdot t\right)}{\color{blue}{\ell \cdot \ell}} \cdot \frac{{\sin k}^{2}}{\cos k}} \]
    4. Simplified65.1%

      \[\leadsto \frac{2}{\color{blue}{\frac{k \cdot \left(k \cdot t\right)}{\ell \cdot \ell} \cdot \frac{{\sin k}^{2}}{\cos k}}} \]
    5. Taylor expanded in k around 0 58.2%

      \[\leadsto \frac{2}{\frac{k \cdot \left(k \cdot t\right)}{\ell \cdot \ell} \cdot \frac{{\color{blue}{k}}^{2}}{\cos k}} \]
    6. Step-by-step derivation
      1. expm1-log1p-u40.3%

        \[\leadsto \frac{2}{\color{blue}{\mathsf{expm1}\left(\mathsf{log1p}\left(\frac{k \cdot \left(k \cdot t\right)}{\ell \cdot \ell}\right)\right)} \cdot \frac{{k}^{2}}{\cos k}} \]
      2. times-frac45.0%

        \[\leadsto \frac{2}{\mathsf{expm1}\left(\mathsf{log1p}\left(\color{blue}{\frac{k}{\ell} \cdot \frac{k \cdot t}{\ell}}\right)\right) \cdot \frac{{k}^{2}}{\cos k}} \]
    7. Applied egg-rr45.0%

      \[\leadsto \frac{2}{\color{blue}{\mathsf{expm1}\left(\mathsf{log1p}\left(\frac{k}{\ell} \cdot \frac{k \cdot t}{\ell}\right)\right)} \cdot \frac{{k}^{2}}{\cos k}} \]
    8. Step-by-step derivation
      1. expm1-log1p-u65.7%

        \[\leadsto \frac{2}{\color{blue}{\left(\frac{k}{\ell} \cdot \frac{k \cdot t}{\ell}\right)} \cdot \frac{{k}^{2}}{\cos k}} \]
      2. associate-*l/65.7%

        \[\leadsto \frac{2}{\color{blue}{\frac{k \cdot \frac{k \cdot t}{\ell}}{\ell}} \cdot \frac{{k}^{2}}{\cos k}} \]
      3. *-commutative65.7%

        \[\leadsto \frac{2}{\frac{k \cdot \frac{\color{blue}{t \cdot k}}{\ell}}{\ell} \cdot \frac{{k}^{2}}{\cos k}} \]
      4. associate-*r/66.4%

        \[\leadsto \frac{2}{\frac{k \cdot \color{blue}{\left(t \cdot \frac{k}{\ell}\right)}}{\ell} \cdot \frac{{k}^{2}}{\cos k}} \]
    9. Applied egg-rr66.4%

      \[\leadsto \frac{2}{\color{blue}{\frac{k \cdot \left(t \cdot \frac{k}{\ell}\right)}{\ell}} \cdot \frac{{k}^{2}}{\cos k}} \]

    if 1.5999999999999999e-70 < t

    1. Initial program 57.8%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)} \]
    2. Step-by-step derivation
      1. associate-/r*58.0%

        \[\leadsto \color{blue}{\frac{\frac{2}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1}} \]
      2. associate-*l*52.5%

        \[\leadsto \frac{\frac{2}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      3. sqr-neg52.5%

        \[\leadsto \frac{\frac{2}{\frac{{t}^{3}}{\color{blue}{\left(-\ell\right) \cdot \left(-\ell\right)}} \cdot \left(\sin k \cdot \tan k\right)}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      4. associate-*l*58.0%

        \[\leadsto \frac{\frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\left(-\ell\right) \cdot \left(-\ell\right)} \cdot \sin k\right) \cdot \tan k}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      5. *-commutative58.0%

        \[\leadsto \frac{\frac{2}{\color{blue}{\tan k \cdot \left(\frac{{t}^{3}}{\left(-\ell\right) \cdot \left(-\ell\right)} \cdot \sin k\right)}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      6. sqr-neg58.0%

        \[\leadsto \frac{\frac{2}{\tan k \cdot \left(\frac{{t}^{3}}{\color{blue}{\ell \cdot \ell}} \cdot \sin k\right)}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      7. associate-*l/61.2%

        \[\leadsto \frac{\frac{2}{\tan k \cdot \color{blue}{\frac{{t}^{3} \cdot \sin k}{\ell \cdot \ell}}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      8. associate-*r/59.9%

        \[\leadsto \frac{\frac{2}{\color{blue}{\frac{\tan k \cdot \left({t}^{3} \cdot \sin k\right)}{\ell \cdot \ell}}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      9. associate-/r/59.9%

        \[\leadsto \frac{\color{blue}{\frac{2}{\tan k \cdot \left({t}^{3} \cdot \sin k\right)} \cdot \left(\ell \cdot \ell\right)}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
    3. Simplified59.9%

      \[\leadsto \color{blue}{\frac{\frac{2}{\tan k \cdot \left({t}^{3} \cdot \sin k\right)} \cdot \left(\ell \cdot \ell\right)}{2 + {\left(\frac{k}{t}\right)}^{2}}} \]
    4. Taylor expanded in k around 0 56.3%

      \[\leadsto \frac{\frac{2}{\tan k \cdot \left({t}^{3} \cdot \color{blue}{k}\right)} \cdot \left(\ell \cdot \ell\right)}{2 + {\left(\frac{k}{t}\right)}^{2}} \]
    5. Taylor expanded in t around inf 54.1%

      \[\leadsto \color{blue}{\frac{{\ell}^{2} \cdot \cos k}{k \cdot \left({t}^{3} \cdot \sin k\right)}} \]
    6. Step-by-step derivation
      1. associate-*r*54.1%

        \[\leadsto \frac{{\ell}^{2} \cdot \cos k}{\color{blue}{\left(k \cdot {t}^{3}\right) \cdot \sin k}} \]
      2. times-frac55.3%

        \[\leadsto \color{blue}{\frac{{\ell}^{2}}{k \cdot {t}^{3}} \cdot \frac{\cos k}{\sin k}} \]
      3. unpow255.3%

        \[\leadsto \frac{\color{blue}{\ell \cdot \ell}}{k \cdot {t}^{3}} \cdot \frac{\cos k}{\sin k} \]
      4. *-commutative55.3%

        \[\leadsto \frac{\ell \cdot \ell}{\color{blue}{{t}^{3} \cdot k}} \cdot \frac{\cos k}{\sin k} \]
      5. times-frac59.8%

        \[\leadsto \color{blue}{\left(\frac{\ell}{{t}^{3}} \cdot \frac{\ell}{k}\right)} \cdot \frac{\cos k}{\sin k} \]
    7. Simplified59.8%

      \[\leadsto \color{blue}{\left(\frac{\ell}{{t}^{3}} \cdot \frac{\ell}{k}\right) \cdot \frac{\cos k}{\sin k}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification64.5%

    \[\leadsto \begin{array}{l} \mathbf{if}\;t \leq 1.6 \cdot 10^{-70}:\\ \;\;\;\;\frac{2}{\frac{k \cdot \left(t \cdot \frac{k}{\ell}\right)}{\ell} \cdot \frac{{k}^{2}}{\cos k}}\\ \mathbf{else}:\\ \;\;\;\;\left(\frac{\ell}{k} \cdot \frac{\ell}{{t}^{3}}\right) \cdot \frac{\cos k}{\sin k}\\ \end{array} \]

Alternative 14: 62.6% accurate, 1.9× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;t \leq 1.1 \cdot 10^{-80}:\\ \;\;\;\;\frac{2}{\frac{k \cdot \left(t \cdot \frac{k}{\ell}\right)}{\ell} \cdot \frac{{k}^{2}}{\cos k}}\\ \mathbf{else}:\\ \;\;\;\;\frac{\ell}{{t}^{3}} \cdot \frac{\frac{\ell}{k}}{k}\\ \end{array} \end{array} \]
(FPCore (t l k)
 :precision binary64
 (if (<= t 1.1e-80)
   (/ 2.0 (* (/ (* k (* t (/ k l))) l) (/ (pow k 2.0) (cos k))))
   (* (/ l (pow t 3.0)) (/ (/ l k) k))))
double code(double t, double l, double k) {
	double tmp;
	if (t <= 1.1e-80) {
		tmp = 2.0 / (((k * (t * (k / l))) / l) * (pow(k, 2.0) / cos(k)));
	} else {
		tmp = (l / pow(t, 3.0)) * ((l / k) / k);
	}
	return tmp;
}
real(8) function code(t, l, k)
    real(8), intent (in) :: t
    real(8), intent (in) :: l
    real(8), intent (in) :: k
    real(8) :: tmp
    if (t <= 1.1d-80) then
        tmp = 2.0d0 / (((k * (t * (k / l))) / l) * ((k ** 2.0d0) / cos(k)))
    else
        tmp = (l / (t ** 3.0d0)) * ((l / k) / k)
    end if
    code = tmp
end function
public static double code(double t, double l, double k) {
	double tmp;
	if (t <= 1.1e-80) {
		tmp = 2.0 / (((k * (t * (k / l))) / l) * (Math.pow(k, 2.0) / Math.cos(k)));
	} else {
		tmp = (l / Math.pow(t, 3.0)) * ((l / k) / k);
	}
	return tmp;
}
def code(t, l, k):
	tmp = 0
	if t <= 1.1e-80:
		tmp = 2.0 / (((k * (t * (k / l))) / l) * (math.pow(k, 2.0) / math.cos(k)))
	else:
		tmp = (l / math.pow(t, 3.0)) * ((l / k) / k)
	return tmp
function code(t, l, k)
	tmp = 0.0
	if (t <= 1.1e-80)
		tmp = Float64(2.0 / Float64(Float64(Float64(k * Float64(t * Float64(k / l))) / l) * Float64((k ^ 2.0) / cos(k))));
	else
		tmp = Float64(Float64(l / (t ^ 3.0)) * Float64(Float64(l / k) / k));
	end
	return tmp
end
function tmp_2 = code(t, l, k)
	tmp = 0.0;
	if (t <= 1.1e-80)
		tmp = 2.0 / (((k * (t * (k / l))) / l) * ((k ^ 2.0) / cos(k)));
	else
		tmp = (l / (t ^ 3.0)) * ((l / k) / k);
	end
	tmp_2 = tmp;
end
code[t_, l_, k_] := If[LessEqual[t, 1.1e-80], N[(2.0 / N[(N[(N[(k * N[(t * N[(k / l), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / l), $MachinePrecision] * N[(N[Power[k, 2.0], $MachinePrecision] / N[Cos[k], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(l / N[Power[t, 3.0], $MachinePrecision]), $MachinePrecision] * N[(N[(l / k), $MachinePrecision] / k), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;t \leq 1.1 \cdot 10^{-80}:\\
\;\;\;\;\frac{2}{\frac{k \cdot \left(t \cdot \frac{k}{\ell}\right)}{\ell} \cdot \frac{{k}^{2}}{\cos k}}\\

\mathbf{else}:\\
\;\;\;\;\frac{\ell}{{t}^{3}} \cdot \frac{\frac{\ell}{k}}{k}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if t < 1.10000000000000005e-80

    1. Initial program 41.7%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)} \]
    2. Taylor expanded in t around 0 62.0%

      \[\leadsto \frac{2}{\color{blue}{\frac{{k}^{2} \cdot \left(t \cdot {\sin k}^{2}\right)}{{\ell}^{2} \cdot \cos k}}} \]
    3. Step-by-step derivation
      1. associate-*r*62.0%

        \[\leadsto \frac{2}{\frac{\color{blue}{\left({k}^{2} \cdot t\right) \cdot {\sin k}^{2}}}{{\ell}^{2} \cdot \cos k}} \]
      2. times-frac62.5%

        \[\leadsto \frac{2}{\color{blue}{\frac{{k}^{2} \cdot t}{{\ell}^{2}} \cdot \frac{{\sin k}^{2}}{\cos k}}} \]
      3. unpow262.5%

        \[\leadsto \frac{2}{\frac{\color{blue}{\left(k \cdot k\right)} \cdot t}{{\ell}^{2}} \cdot \frac{{\sin k}^{2}}{\cos k}} \]
      4. associate-*l*64.7%

        \[\leadsto \frac{2}{\frac{\color{blue}{k \cdot \left(k \cdot t\right)}}{{\ell}^{2}} \cdot \frac{{\sin k}^{2}}{\cos k}} \]
      5. unpow264.7%

        \[\leadsto \frac{2}{\frac{k \cdot \left(k \cdot t\right)}{\color{blue}{\ell \cdot \ell}} \cdot \frac{{\sin k}^{2}}{\cos k}} \]
    4. Simplified64.7%

      \[\leadsto \frac{2}{\color{blue}{\frac{k \cdot \left(k \cdot t\right)}{\ell \cdot \ell} \cdot \frac{{\sin k}^{2}}{\cos k}}} \]
    5. Taylor expanded in k around 0 57.7%

      \[\leadsto \frac{2}{\frac{k \cdot \left(k \cdot t\right)}{\ell \cdot \ell} \cdot \frac{{\color{blue}{k}}^{2}}{\cos k}} \]
    6. Step-by-step derivation
      1. expm1-log1p-u39.7%

        \[\leadsto \frac{2}{\color{blue}{\mathsf{expm1}\left(\mathsf{log1p}\left(\frac{k \cdot \left(k \cdot t\right)}{\ell \cdot \ell}\right)\right)} \cdot \frac{{k}^{2}}{\cos k}} \]
      2. times-frac44.4%

        \[\leadsto \frac{2}{\mathsf{expm1}\left(\mathsf{log1p}\left(\color{blue}{\frac{k}{\ell} \cdot \frac{k \cdot t}{\ell}}\right)\right) \cdot \frac{{k}^{2}}{\cos k}} \]
    7. Applied egg-rr44.4%

      \[\leadsto \frac{2}{\color{blue}{\mathsf{expm1}\left(\mathsf{log1p}\left(\frac{k}{\ell} \cdot \frac{k \cdot t}{\ell}\right)\right)} \cdot \frac{{k}^{2}}{\cos k}} \]
    8. Step-by-step derivation
      1. expm1-log1p-u65.3%

        \[\leadsto \frac{2}{\color{blue}{\left(\frac{k}{\ell} \cdot \frac{k \cdot t}{\ell}\right)} \cdot \frac{{k}^{2}}{\cos k}} \]
      2. associate-*l/65.3%

        \[\leadsto \frac{2}{\color{blue}{\frac{k \cdot \frac{k \cdot t}{\ell}}{\ell}} \cdot \frac{{k}^{2}}{\cos k}} \]
      3. *-commutative65.3%

        \[\leadsto \frac{2}{\frac{k \cdot \frac{\color{blue}{t \cdot k}}{\ell}}{\ell} \cdot \frac{{k}^{2}}{\cos k}} \]
      4. associate-*r/66.1%

        \[\leadsto \frac{2}{\frac{k \cdot \color{blue}{\left(t \cdot \frac{k}{\ell}\right)}}{\ell} \cdot \frac{{k}^{2}}{\cos k}} \]
    9. Applied egg-rr66.1%

      \[\leadsto \frac{2}{\color{blue}{\frac{k \cdot \left(t \cdot \frac{k}{\ell}\right)}{\ell}} \cdot \frac{{k}^{2}}{\cos k}} \]

    if 1.10000000000000005e-80 < t

    1. Initial program 58.9%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)} \]
    2. Step-by-step derivation
      1. associate-/r*59.1%

        \[\leadsto \color{blue}{\frac{\frac{2}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1}} \]
      2. associate-*l*53.7%

        \[\leadsto \frac{\frac{2}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      3. sqr-neg53.7%

        \[\leadsto \frac{\frac{2}{\frac{{t}^{3}}{\color{blue}{\left(-\ell\right) \cdot \left(-\ell\right)}} \cdot \left(\sin k \cdot \tan k\right)}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      4. associate-*l*59.1%

        \[\leadsto \frac{\frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\left(-\ell\right) \cdot \left(-\ell\right)} \cdot \sin k\right) \cdot \tan k}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      5. *-commutative59.1%

        \[\leadsto \frac{\frac{2}{\color{blue}{\tan k \cdot \left(\frac{{t}^{3}}{\left(-\ell\right) \cdot \left(-\ell\right)} \cdot \sin k\right)}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      6. sqr-neg59.1%

        \[\leadsto \frac{\frac{2}{\tan k \cdot \left(\frac{{t}^{3}}{\color{blue}{\ell \cdot \ell}} \cdot \sin k\right)}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      7. associate-*l/62.2%

        \[\leadsto \frac{\frac{2}{\tan k \cdot \color{blue}{\frac{{t}^{3} \cdot \sin k}{\ell \cdot \ell}}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      8. associate-*r/60.9%

        \[\leadsto \frac{\frac{2}{\color{blue}{\frac{\tan k \cdot \left({t}^{3} \cdot \sin k\right)}{\ell \cdot \ell}}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      9. associate-/r/61.0%

        \[\leadsto \frac{\color{blue}{\frac{2}{\tan k \cdot \left({t}^{3} \cdot \sin k\right)} \cdot \left(\ell \cdot \ell\right)}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
    3. Simplified61.0%

      \[\leadsto \color{blue}{\frac{\frac{2}{\tan k \cdot \left({t}^{3} \cdot \sin k\right)} \cdot \left(\ell \cdot \ell\right)}{2 + {\left(\frac{k}{t}\right)}^{2}}} \]
    4. Taylor expanded in k around 0 51.2%

      \[\leadsto \color{blue}{\frac{{\ell}^{2}}{{k}^{2} \cdot {t}^{3}}} \]
    5. Step-by-step derivation
      1. unpow251.2%

        \[\leadsto \frac{\color{blue}{\ell \cdot \ell}}{{k}^{2} \cdot {t}^{3}} \]
      2. times-frac55.4%

        \[\leadsto \color{blue}{\frac{\ell}{{k}^{2}} \cdot \frac{\ell}{{t}^{3}}} \]
      3. unpow255.4%

        \[\leadsto \frac{\ell}{\color{blue}{k \cdot k}} \cdot \frac{\ell}{{t}^{3}} \]
    6. Simplified55.4%

      \[\leadsto \color{blue}{\frac{\ell}{k \cdot k} \cdot \frac{\ell}{{t}^{3}}} \]
    7. Taylor expanded in l around 0 55.4%

      \[\leadsto \color{blue}{\frac{\ell}{{k}^{2}}} \cdot \frac{\ell}{{t}^{3}} \]
    8. Step-by-step derivation
      1. unpow255.4%

        \[\leadsto \frac{\ell}{\color{blue}{k \cdot k}} \cdot \frac{\ell}{{t}^{3}} \]
      2. associate-/r*59.1%

        \[\leadsto \color{blue}{\frac{\frac{\ell}{k}}{k}} \cdot \frac{\ell}{{t}^{3}} \]
    9. Simplified59.1%

      \[\leadsto \color{blue}{\frac{\frac{\ell}{k}}{k}} \cdot \frac{\ell}{{t}^{3}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification63.9%

    \[\leadsto \begin{array}{l} \mathbf{if}\;t \leq 1.1 \cdot 10^{-80}:\\ \;\;\;\;\frac{2}{\frac{k \cdot \left(t \cdot \frac{k}{\ell}\right)}{\ell} \cdot \frac{{k}^{2}}{\cos k}}\\ \mathbf{else}:\\ \;\;\;\;\frac{\ell}{{t}^{3}} \cdot \frac{\frac{\ell}{k}}{k}\\ \end{array} \]

Alternative 15: 62.6% accurate, 3.5× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;t \leq 1.05 \cdot 10^{-79}:\\ \;\;\;\;\frac{2}{\frac{\left(\frac{k}{\ell} \cdot \left(t \cdot \frac{k}{\ell}\right)\right) \cdot \left(k \cdot k\right)}{\cos k}}\\ \mathbf{else}:\\ \;\;\;\;\frac{\ell}{{t}^{3}} \cdot \frac{\frac{\ell}{k}}{k}\\ \end{array} \end{array} \]
(FPCore (t l k)
 :precision binary64
 (if (<= t 1.05e-79)
   (/ 2.0 (/ (* (* (/ k l) (* t (/ k l))) (* k k)) (cos k)))
   (* (/ l (pow t 3.0)) (/ (/ l k) k))))
double code(double t, double l, double k) {
	double tmp;
	if (t <= 1.05e-79) {
		tmp = 2.0 / ((((k / l) * (t * (k / l))) * (k * k)) / cos(k));
	} else {
		tmp = (l / pow(t, 3.0)) * ((l / k) / k);
	}
	return tmp;
}
real(8) function code(t, l, k)
    real(8), intent (in) :: t
    real(8), intent (in) :: l
    real(8), intent (in) :: k
    real(8) :: tmp
    if (t <= 1.05d-79) then
        tmp = 2.0d0 / ((((k / l) * (t * (k / l))) * (k * k)) / cos(k))
    else
        tmp = (l / (t ** 3.0d0)) * ((l / k) / k)
    end if
    code = tmp
end function
public static double code(double t, double l, double k) {
	double tmp;
	if (t <= 1.05e-79) {
		tmp = 2.0 / ((((k / l) * (t * (k / l))) * (k * k)) / Math.cos(k));
	} else {
		tmp = (l / Math.pow(t, 3.0)) * ((l / k) / k);
	}
	return tmp;
}
def code(t, l, k):
	tmp = 0
	if t <= 1.05e-79:
		tmp = 2.0 / ((((k / l) * (t * (k / l))) * (k * k)) / math.cos(k))
	else:
		tmp = (l / math.pow(t, 3.0)) * ((l / k) / k)
	return tmp
function code(t, l, k)
	tmp = 0.0
	if (t <= 1.05e-79)
		tmp = Float64(2.0 / Float64(Float64(Float64(Float64(k / l) * Float64(t * Float64(k / l))) * Float64(k * k)) / cos(k)));
	else
		tmp = Float64(Float64(l / (t ^ 3.0)) * Float64(Float64(l / k) / k));
	end
	return tmp
end
function tmp_2 = code(t, l, k)
	tmp = 0.0;
	if (t <= 1.05e-79)
		tmp = 2.0 / ((((k / l) * (t * (k / l))) * (k * k)) / cos(k));
	else
		tmp = (l / (t ^ 3.0)) * ((l / k) / k);
	end
	tmp_2 = tmp;
end
code[t_, l_, k_] := If[LessEqual[t, 1.05e-79], N[(2.0 / N[(N[(N[(N[(k / l), $MachinePrecision] * N[(t * N[(k / l), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] * N[(k * k), $MachinePrecision]), $MachinePrecision] / N[Cos[k], $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(l / N[Power[t, 3.0], $MachinePrecision]), $MachinePrecision] * N[(N[(l / k), $MachinePrecision] / k), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;t \leq 1.05 \cdot 10^{-79}:\\
\;\;\;\;\frac{2}{\frac{\left(\frac{k}{\ell} \cdot \left(t \cdot \frac{k}{\ell}\right)\right) \cdot \left(k \cdot k\right)}{\cos k}}\\

\mathbf{else}:\\
\;\;\;\;\frac{\ell}{{t}^{3}} \cdot \frac{\frac{\ell}{k}}{k}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if t < 1.05e-79

    1. Initial program 41.7%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)} \]
    2. Taylor expanded in t around 0 62.0%

      \[\leadsto \frac{2}{\color{blue}{\frac{{k}^{2} \cdot \left(t \cdot {\sin k}^{2}\right)}{{\ell}^{2} \cdot \cos k}}} \]
    3. Step-by-step derivation
      1. associate-*r*62.0%

        \[\leadsto \frac{2}{\frac{\color{blue}{\left({k}^{2} \cdot t\right) \cdot {\sin k}^{2}}}{{\ell}^{2} \cdot \cos k}} \]
      2. times-frac62.5%

        \[\leadsto \frac{2}{\color{blue}{\frac{{k}^{2} \cdot t}{{\ell}^{2}} \cdot \frac{{\sin k}^{2}}{\cos k}}} \]
      3. unpow262.5%

        \[\leadsto \frac{2}{\frac{\color{blue}{\left(k \cdot k\right)} \cdot t}{{\ell}^{2}} \cdot \frac{{\sin k}^{2}}{\cos k}} \]
      4. associate-*l*64.7%

        \[\leadsto \frac{2}{\frac{\color{blue}{k \cdot \left(k \cdot t\right)}}{{\ell}^{2}} \cdot \frac{{\sin k}^{2}}{\cos k}} \]
      5. unpow264.7%

        \[\leadsto \frac{2}{\frac{k \cdot \left(k \cdot t\right)}{\color{blue}{\ell \cdot \ell}} \cdot \frac{{\sin k}^{2}}{\cos k}} \]
    4. Simplified64.7%

      \[\leadsto \frac{2}{\color{blue}{\frac{k \cdot \left(k \cdot t\right)}{\ell \cdot \ell} \cdot \frac{{\sin k}^{2}}{\cos k}}} \]
    5. Taylor expanded in k around 0 57.7%

      \[\leadsto \frac{2}{\frac{k \cdot \left(k \cdot t\right)}{\ell \cdot \ell} \cdot \frac{{\color{blue}{k}}^{2}}{\cos k}} \]
    6. Step-by-step derivation
      1. expm1-log1p-u39.7%

        \[\leadsto \frac{2}{\color{blue}{\mathsf{expm1}\left(\mathsf{log1p}\left(\frac{k \cdot \left(k \cdot t\right)}{\ell \cdot \ell}\right)\right)} \cdot \frac{{k}^{2}}{\cos k}} \]
      2. times-frac44.4%

        \[\leadsto \frac{2}{\mathsf{expm1}\left(\mathsf{log1p}\left(\color{blue}{\frac{k}{\ell} \cdot \frac{k \cdot t}{\ell}}\right)\right) \cdot \frac{{k}^{2}}{\cos k}} \]
    7. Applied egg-rr44.4%

      \[\leadsto \frac{2}{\color{blue}{\mathsf{expm1}\left(\mathsf{log1p}\left(\frac{k}{\ell} \cdot \frac{k \cdot t}{\ell}\right)\right)} \cdot \frac{{k}^{2}}{\cos k}} \]
    8. Step-by-step derivation
      1. associate-*r/44.4%

        \[\leadsto \frac{2}{\color{blue}{\frac{\mathsf{expm1}\left(\mathsf{log1p}\left(\frac{k}{\ell} \cdot \frac{k \cdot t}{\ell}\right)\right) \cdot {k}^{2}}{\cos k}}} \]
      2. expm1-log1p-u65.3%

        \[\leadsto \frac{2}{\frac{\color{blue}{\left(\frac{k}{\ell} \cdot \frac{k \cdot t}{\ell}\right)} \cdot {k}^{2}}{\cos k}} \]
      3. *-commutative65.3%

        \[\leadsto \frac{2}{\frac{\left(\frac{k}{\ell} \cdot \frac{\color{blue}{t \cdot k}}{\ell}\right) \cdot {k}^{2}}{\cos k}} \]
      4. associate-*r/66.0%

        \[\leadsto \frac{2}{\frac{\left(\frac{k}{\ell} \cdot \color{blue}{\left(t \cdot \frac{k}{\ell}\right)}\right) \cdot {k}^{2}}{\cos k}} \]
      5. unpow266.0%

        \[\leadsto \frac{2}{\frac{\left(\frac{k}{\ell} \cdot \left(t \cdot \frac{k}{\ell}\right)\right) \cdot \color{blue}{\left(k \cdot k\right)}}{\cos k}} \]
    9. Applied egg-rr66.0%

      \[\leadsto \frac{2}{\color{blue}{\frac{\left(\frac{k}{\ell} \cdot \left(t \cdot \frac{k}{\ell}\right)\right) \cdot \left(k \cdot k\right)}{\cos k}}} \]

    if 1.05e-79 < t

    1. Initial program 58.9%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)} \]
    2. Step-by-step derivation
      1. associate-/r*59.1%

        \[\leadsto \color{blue}{\frac{\frac{2}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1}} \]
      2. associate-*l*53.7%

        \[\leadsto \frac{\frac{2}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      3. sqr-neg53.7%

        \[\leadsto \frac{\frac{2}{\frac{{t}^{3}}{\color{blue}{\left(-\ell\right) \cdot \left(-\ell\right)}} \cdot \left(\sin k \cdot \tan k\right)}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      4. associate-*l*59.1%

        \[\leadsto \frac{\frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\left(-\ell\right) \cdot \left(-\ell\right)} \cdot \sin k\right) \cdot \tan k}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      5. *-commutative59.1%

        \[\leadsto \frac{\frac{2}{\color{blue}{\tan k \cdot \left(\frac{{t}^{3}}{\left(-\ell\right) \cdot \left(-\ell\right)} \cdot \sin k\right)}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      6. sqr-neg59.1%

        \[\leadsto \frac{\frac{2}{\tan k \cdot \left(\frac{{t}^{3}}{\color{blue}{\ell \cdot \ell}} \cdot \sin k\right)}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      7. associate-*l/62.2%

        \[\leadsto \frac{\frac{2}{\tan k \cdot \color{blue}{\frac{{t}^{3} \cdot \sin k}{\ell \cdot \ell}}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      8. associate-*r/60.9%

        \[\leadsto \frac{\frac{2}{\color{blue}{\frac{\tan k \cdot \left({t}^{3} \cdot \sin k\right)}{\ell \cdot \ell}}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      9. associate-/r/61.0%

        \[\leadsto \frac{\color{blue}{\frac{2}{\tan k \cdot \left({t}^{3} \cdot \sin k\right)} \cdot \left(\ell \cdot \ell\right)}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
    3. Simplified61.0%

      \[\leadsto \color{blue}{\frac{\frac{2}{\tan k \cdot \left({t}^{3} \cdot \sin k\right)} \cdot \left(\ell \cdot \ell\right)}{2 + {\left(\frac{k}{t}\right)}^{2}}} \]
    4. Taylor expanded in k around 0 51.2%

      \[\leadsto \color{blue}{\frac{{\ell}^{2}}{{k}^{2} \cdot {t}^{3}}} \]
    5. Step-by-step derivation
      1. unpow251.2%

        \[\leadsto \frac{\color{blue}{\ell \cdot \ell}}{{k}^{2} \cdot {t}^{3}} \]
      2. times-frac55.4%

        \[\leadsto \color{blue}{\frac{\ell}{{k}^{2}} \cdot \frac{\ell}{{t}^{3}}} \]
      3. unpow255.4%

        \[\leadsto \frac{\ell}{\color{blue}{k \cdot k}} \cdot \frac{\ell}{{t}^{3}} \]
    6. Simplified55.4%

      \[\leadsto \color{blue}{\frac{\ell}{k \cdot k} \cdot \frac{\ell}{{t}^{3}}} \]
    7. Taylor expanded in l around 0 55.4%

      \[\leadsto \color{blue}{\frac{\ell}{{k}^{2}}} \cdot \frac{\ell}{{t}^{3}} \]
    8. Step-by-step derivation
      1. unpow255.4%

        \[\leadsto \frac{\ell}{\color{blue}{k \cdot k}} \cdot \frac{\ell}{{t}^{3}} \]
      2. associate-/r*59.1%

        \[\leadsto \color{blue}{\frac{\frac{\ell}{k}}{k}} \cdot \frac{\ell}{{t}^{3}} \]
    9. Simplified59.1%

      \[\leadsto \color{blue}{\frac{\frac{\ell}{k}}{k}} \cdot \frac{\ell}{{t}^{3}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification63.9%

    \[\leadsto \begin{array}{l} \mathbf{if}\;t \leq 1.05 \cdot 10^{-79}:\\ \;\;\;\;\frac{2}{\frac{\left(\frac{k}{\ell} \cdot \left(t \cdot \frac{k}{\ell}\right)\right) \cdot \left(k \cdot k\right)}{\cos k}}\\ \mathbf{else}:\\ \;\;\;\;\frac{\ell}{{t}^{3}} \cdot \frac{\frac{\ell}{k}}{k}\\ \end{array} \]

Alternative 16: 63.5% accurate, 3.6× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := \frac{\ell}{{t}^{3}}\\ \mathbf{if}\;t \leq -3.5 \cdot 10^{-13}:\\ \;\;\;\;\frac{\ell \cdot t_1}{k \cdot k}\\ \mathbf{elif}\;t \leq 1.4 \cdot 10^{-80}:\\ \;\;\;\;\frac{2}{\frac{t \cdot \frac{k}{\ell}}{\frac{\ell}{{k}^{3}}}}\\ \mathbf{else}:\\ \;\;\;\;t_1 \cdot \frac{\frac{\ell}{k}}{k}\\ \end{array} \end{array} \]
(FPCore (t l k)
 :precision binary64
 (let* ((t_1 (/ l (pow t 3.0))))
   (if (<= t -3.5e-13)
     (/ (* l t_1) (* k k))
     (if (<= t 1.4e-80)
       (/ 2.0 (/ (* t (/ k l)) (/ l (pow k 3.0))))
       (* t_1 (/ (/ l k) k))))))
double code(double t, double l, double k) {
	double t_1 = l / pow(t, 3.0);
	double tmp;
	if (t <= -3.5e-13) {
		tmp = (l * t_1) / (k * k);
	} else if (t <= 1.4e-80) {
		tmp = 2.0 / ((t * (k / l)) / (l / pow(k, 3.0)));
	} else {
		tmp = t_1 * ((l / k) / k);
	}
	return tmp;
}
real(8) function code(t, l, k)
    real(8), intent (in) :: t
    real(8), intent (in) :: l
    real(8), intent (in) :: k
    real(8) :: t_1
    real(8) :: tmp
    t_1 = l / (t ** 3.0d0)
    if (t <= (-3.5d-13)) then
        tmp = (l * t_1) / (k * k)
    else if (t <= 1.4d-80) then
        tmp = 2.0d0 / ((t * (k / l)) / (l / (k ** 3.0d0)))
    else
        tmp = t_1 * ((l / k) / k)
    end if
    code = tmp
end function
public static double code(double t, double l, double k) {
	double t_1 = l / Math.pow(t, 3.0);
	double tmp;
	if (t <= -3.5e-13) {
		tmp = (l * t_1) / (k * k);
	} else if (t <= 1.4e-80) {
		tmp = 2.0 / ((t * (k / l)) / (l / Math.pow(k, 3.0)));
	} else {
		tmp = t_1 * ((l / k) / k);
	}
	return tmp;
}
def code(t, l, k):
	t_1 = l / math.pow(t, 3.0)
	tmp = 0
	if t <= -3.5e-13:
		tmp = (l * t_1) / (k * k)
	elif t <= 1.4e-80:
		tmp = 2.0 / ((t * (k / l)) / (l / math.pow(k, 3.0)))
	else:
		tmp = t_1 * ((l / k) / k)
	return tmp
function code(t, l, k)
	t_1 = Float64(l / (t ^ 3.0))
	tmp = 0.0
	if (t <= -3.5e-13)
		tmp = Float64(Float64(l * t_1) / Float64(k * k));
	elseif (t <= 1.4e-80)
		tmp = Float64(2.0 / Float64(Float64(t * Float64(k / l)) / Float64(l / (k ^ 3.0))));
	else
		tmp = Float64(t_1 * Float64(Float64(l / k) / k));
	end
	return tmp
end
function tmp_2 = code(t, l, k)
	t_1 = l / (t ^ 3.0);
	tmp = 0.0;
	if (t <= -3.5e-13)
		tmp = (l * t_1) / (k * k);
	elseif (t <= 1.4e-80)
		tmp = 2.0 / ((t * (k / l)) / (l / (k ^ 3.0)));
	else
		tmp = t_1 * ((l / k) / k);
	end
	tmp_2 = tmp;
end
code[t_, l_, k_] := Block[{t$95$1 = N[(l / N[Power[t, 3.0], $MachinePrecision]), $MachinePrecision]}, If[LessEqual[t, -3.5e-13], N[(N[(l * t$95$1), $MachinePrecision] / N[(k * k), $MachinePrecision]), $MachinePrecision], If[LessEqual[t, 1.4e-80], N[(2.0 / N[(N[(t * N[(k / l), $MachinePrecision]), $MachinePrecision] / N[(l / N[Power[k, 3.0], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(t$95$1 * N[(N[(l / k), $MachinePrecision] / k), $MachinePrecision]), $MachinePrecision]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := \frac{\ell}{{t}^{3}}\\
\mathbf{if}\;t \leq -3.5 \cdot 10^{-13}:\\
\;\;\;\;\frac{\ell \cdot t_1}{k \cdot k}\\

\mathbf{elif}\;t \leq 1.4 \cdot 10^{-80}:\\
\;\;\;\;\frac{2}{\frac{t \cdot \frac{k}{\ell}}{\frac{\ell}{{k}^{3}}}}\\

\mathbf{else}:\\
\;\;\;\;t_1 \cdot \frac{\frac{\ell}{k}}{k}\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if t < -3.5000000000000002e-13

    1. Initial program 54.7%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)} \]
    2. Step-by-step derivation
      1. associate-/r*54.7%

        \[\leadsto \color{blue}{\frac{\frac{2}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1}} \]
      2. associate-*l*49.7%

        \[\leadsto \frac{\frac{2}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      3. sqr-neg49.7%

        \[\leadsto \frac{\frac{2}{\frac{{t}^{3}}{\color{blue}{\left(-\ell\right) \cdot \left(-\ell\right)}} \cdot \left(\sin k \cdot \tan k\right)}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      4. associate-*l*54.7%

        \[\leadsto \frac{\frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\left(-\ell\right) \cdot \left(-\ell\right)} \cdot \sin k\right) \cdot \tan k}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      5. *-commutative54.7%

        \[\leadsto \frac{\frac{2}{\color{blue}{\tan k \cdot \left(\frac{{t}^{3}}{\left(-\ell\right) \cdot \left(-\ell\right)} \cdot \sin k\right)}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      6. sqr-neg54.7%

        \[\leadsto \frac{\frac{2}{\tan k \cdot \left(\frac{{t}^{3}}{\color{blue}{\ell \cdot \ell}} \cdot \sin k\right)}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      7. associate-*l/54.7%

        \[\leadsto \frac{\frac{2}{\tan k \cdot \color{blue}{\frac{{t}^{3} \cdot \sin k}{\ell \cdot \ell}}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      8. associate-*r/54.7%

        \[\leadsto \frac{\frac{2}{\color{blue}{\frac{\tan k \cdot \left({t}^{3} \cdot \sin k\right)}{\ell \cdot \ell}}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      9. associate-/r/54.7%

        \[\leadsto \frac{\color{blue}{\frac{2}{\tan k \cdot \left({t}^{3} \cdot \sin k\right)} \cdot \left(\ell \cdot \ell\right)}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
    3. Simplified54.7%

      \[\leadsto \color{blue}{\frac{\frac{2}{\tan k \cdot \left({t}^{3} \cdot \sin k\right)} \cdot \left(\ell \cdot \ell\right)}{2 + {\left(\frac{k}{t}\right)}^{2}}} \]
    4. Taylor expanded in k around 0 49.9%

      \[\leadsto \color{blue}{\frac{{\ell}^{2}}{{k}^{2} \cdot {t}^{3}}} \]
    5. Step-by-step derivation
      1. unpow249.9%

        \[\leadsto \frac{\color{blue}{\ell \cdot \ell}}{{k}^{2} \cdot {t}^{3}} \]
      2. times-frac51.7%

        \[\leadsto \color{blue}{\frac{\ell}{{k}^{2}} \cdot \frac{\ell}{{t}^{3}}} \]
      3. unpow251.7%

        \[\leadsto \frac{\ell}{\color{blue}{k \cdot k}} \cdot \frac{\ell}{{t}^{3}} \]
    6. Simplified51.7%

      \[\leadsto \color{blue}{\frac{\ell}{k \cdot k} \cdot \frac{\ell}{{t}^{3}}} \]
    7. Step-by-step derivation
      1. associate-*l/54.6%

        \[\leadsto \color{blue}{\frac{\ell \cdot \frac{\ell}{{t}^{3}}}{k \cdot k}} \]
    8. Applied egg-rr54.6%

      \[\leadsto \color{blue}{\frac{\ell \cdot \frac{\ell}{{t}^{3}}}{k \cdot k}} \]

    if -3.5000000000000002e-13 < t < 1.39999999999999995e-80

    1. Initial program 36.1%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)} \]
    2. Taylor expanded in t around 0 69.7%

      \[\leadsto \frac{2}{\color{blue}{\frac{{k}^{2} \cdot \left(t \cdot {\sin k}^{2}\right)}{{\ell}^{2} \cdot \cos k}}} \]
    3. Step-by-step derivation
      1. associate-*r*69.8%

        \[\leadsto \frac{2}{\frac{\color{blue}{\left({k}^{2} \cdot t\right) \cdot {\sin k}^{2}}}{{\ell}^{2} \cdot \cos k}} \]
      2. times-frac70.5%

        \[\leadsto \frac{2}{\color{blue}{\frac{{k}^{2} \cdot t}{{\ell}^{2}} \cdot \frac{{\sin k}^{2}}{\cos k}}} \]
      3. unpow270.5%

        \[\leadsto \frac{2}{\frac{\color{blue}{\left(k \cdot k\right)} \cdot t}{{\ell}^{2}} \cdot \frac{{\sin k}^{2}}{\cos k}} \]
      4. associate-*l*73.7%

        \[\leadsto \frac{2}{\frac{\color{blue}{k \cdot \left(k \cdot t\right)}}{{\ell}^{2}} \cdot \frac{{\sin k}^{2}}{\cos k}} \]
      5. unpow273.7%

        \[\leadsto \frac{2}{\frac{k \cdot \left(k \cdot t\right)}{\color{blue}{\ell \cdot \ell}} \cdot \frac{{\sin k}^{2}}{\cos k}} \]
    4. Simplified73.7%

      \[\leadsto \frac{2}{\color{blue}{\frac{k \cdot \left(k \cdot t\right)}{\ell \cdot \ell} \cdot \frac{{\sin k}^{2}}{\cos k}}} \]
    5. Step-by-step derivation
      1. add-cbrt-cube63.8%

        \[\leadsto \frac{2}{\color{blue}{\sqrt[3]{\left(\left(\frac{k \cdot \left(k \cdot t\right)}{\ell \cdot \ell} \cdot \frac{{\sin k}^{2}}{\cos k}\right) \cdot \left(\frac{k \cdot \left(k \cdot t\right)}{\ell \cdot \ell} \cdot \frac{{\sin k}^{2}}{\cos k}\right)\right) \cdot \left(\frac{k \cdot \left(k \cdot t\right)}{\ell \cdot \ell} \cdot \frac{{\sin k}^{2}}{\cos k}\right)}}} \]
      2. times-frac63.8%

        \[\leadsto \frac{2}{\sqrt[3]{\left(\left(\color{blue}{\left(\frac{k}{\ell} \cdot \frac{k \cdot t}{\ell}\right)} \cdot \frac{{\sin k}^{2}}{\cos k}\right) \cdot \left(\frac{k \cdot \left(k \cdot t\right)}{\ell \cdot \ell} \cdot \frac{{\sin k}^{2}}{\cos k}\right)\right) \cdot \left(\frac{k \cdot \left(k \cdot t\right)}{\ell \cdot \ell} \cdot \frac{{\sin k}^{2}}{\cos k}\right)}} \]
      3. times-frac63.8%

        \[\leadsto \frac{2}{\sqrt[3]{\left(\left(\left(\frac{k}{\ell} \cdot \frac{k \cdot t}{\ell}\right) \cdot \frac{{\sin k}^{2}}{\cos k}\right) \cdot \left(\color{blue}{\left(\frac{k}{\ell} \cdot \frac{k \cdot t}{\ell}\right)} \cdot \frac{{\sin k}^{2}}{\cos k}\right)\right) \cdot \left(\frac{k \cdot \left(k \cdot t\right)}{\ell \cdot \ell} \cdot \frac{{\sin k}^{2}}{\cos k}\right)}} \]
      4. times-frac71.0%

        \[\leadsto \frac{2}{\sqrt[3]{\left(\left(\left(\frac{k}{\ell} \cdot \frac{k \cdot t}{\ell}\right) \cdot \frac{{\sin k}^{2}}{\cos k}\right) \cdot \left(\left(\frac{k}{\ell} \cdot \frac{k \cdot t}{\ell}\right) \cdot \frac{{\sin k}^{2}}{\cos k}\right)\right) \cdot \left(\color{blue}{\left(\frac{k}{\ell} \cdot \frac{k \cdot t}{\ell}\right)} \cdot \frac{{\sin k}^{2}}{\cos k}\right)}} \]
    6. Applied egg-rr71.0%

      \[\leadsto \frac{2}{\color{blue}{\sqrt[3]{\left(\left(\left(\frac{k}{\ell} \cdot \frac{k \cdot t}{\ell}\right) \cdot \frac{{\sin k}^{2}}{\cos k}\right) \cdot \left(\left(\frac{k}{\ell} \cdot \frac{k \cdot t}{\ell}\right) \cdot \frac{{\sin k}^{2}}{\cos k}\right)\right) \cdot \left(\left(\frac{k}{\ell} \cdot \frac{k \cdot t}{\ell}\right) \cdot \frac{{\sin k}^{2}}{\cos k}\right)}}} \]
    7. Step-by-step derivation
      1. associate-*l*71.0%

        \[\leadsto \frac{2}{\sqrt[3]{\color{blue}{\left(\left(\frac{k}{\ell} \cdot \frac{k \cdot t}{\ell}\right) \cdot \frac{{\sin k}^{2}}{\cos k}\right) \cdot \left(\left(\left(\frac{k}{\ell} \cdot \frac{k \cdot t}{\ell}\right) \cdot \frac{{\sin k}^{2}}{\cos k}\right) \cdot \left(\left(\frac{k}{\ell} \cdot \frac{k \cdot t}{\ell}\right) \cdot \frac{{\sin k}^{2}}{\cos k}\right)\right)}}} \]
      2. cube-unmult71.1%

        \[\leadsto \frac{2}{\sqrt[3]{\color{blue}{{\left(\left(\frac{k}{\ell} \cdot \frac{k \cdot t}{\ell}\right) \cdot \frac{{\sin k}^{2}}{\cos k}\right)}^{3}}}} \]
      3. associate-*l*71.1%

        \[\leadsto \frac{2}{\sqrt[3]{{\color{blue}{\left(\frac{k}{\ell} \cdot \left(\frac{k \cdot t}{\ell} \cdot \frac{{\sin k}^{2}}{\cos k}\right)\right)}}^{3}}} \]
      4. associate-*l/69.5%

        \[\leadsto \frac{2}{\sqrt[3]{{\left(\frac{k}{\ell} \cdot \color{blue}{\frac{\left(k \cdot t\right) \cdot \frac{{\sin k}^{2}}{\cos k}}{\ell}}\right)}^{3}}} \]
      5. associate-*r/69.5%

        \[\leadsto \frac{2}{\sqrt[3]{{\left(\frac{k}{\ell} \cdot \frac{\color{blue}{\frac{\left(k \cdot t\right) \cdot {\sin k}^{2}}{\cos k}}}{\ell}\right)}^{3}}} \]
    8. Simplified69.5%

      \[\leadsto \frac{2}{\color{blue}{\sqrt[3]{{\left(\frac{k}{\ell} \cdot \frac{\frac{\left(k \cdot t\right) \cdot {\sin k}^{2}}{\cos k}}{\ell}\right)}^{3}}}} \]
    9. Taylor expanded in k around 0 64.9%

      \[\leadsto \frac{2}{\sqrt[3]{{\left(\frac{k}{\ell} \cdot \color{blue}{\frac{{k}^{3} \cdot t}{\ell}}\right)}^{3}}} \]
    10. Step-by-step derivation
      1. *-commutative64.9%

        \[\leadsto \frac{2}{\sqrt[3]{{\left(\frac{k}{\ell} \cdot \frac{\color{blue}{t \cdot {k}^{3}}}{\ell}\right)}^{3}}} \]
      2. associate-/l*66.5%

        \[\leadsto \frac{2}{\sqrt[3]{{\left(\frac{k}{\ell} \cdot \color{blue}{\frac{t}{\frac{\ell}{{k}^{3}}}}\right)}^{3}}} \]
    11. Simplified66.5%

      \[\leadsto \frac{2}{\sqrt[3]{{\left(\frac{k}{\ell} \cdot \color{blue}{\frac{t}{\frac{\ell}{{k}^{3}}}}\right)}^{3}}} \]
    12. Step-by-step derivation
      1. rem-cbrt-cube71.4%

        \[\leadsto \frac{2}{\color{blue}{\frac{k}{\ell} \cdot \frac{t}{\frac{\ell}{{k}^{3}}}}} \]
      2. associate-*r/71.5%

        \[\leadsto \frac{2}{\color{blue}{\frac{\frac{k}{\ell} \cdot t}{\frac{\ell}{{k}^{3}}}}} \]
      3. *-commutative71.5%

        \[\leadsto \frac{2}{\frac{\color{blue}{t \cdot \frac{k}{\ell}}}{\frac{\ell}{{k}^{3}}}} \]
    13. Applied egg-rr71.5%

      \[\leadsto \frac{2}{\color{blue}{\frac{t \cdot \frac{k}{\ell}}{\frac{\ell}{{k}^{3}}}}} \]

    if 1.39999999999999995e-80 < t

    1. Initial program 58.9%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)} \]
    2. Step-by-step derivation
      1. associate-/r*59.1%

        \[\leadsto \color{blue}{\frac{\frac{2}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1}} \]
      2. associate-*l*53.7%

        \[\leadsto \frac{\frac{2}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      3. sqr-neg53.7%

        \[\leadsto \frac{\frac{2}{\frac{{t}^{3}}{\color{blue}{\left(-\ell\right) \cdot \left(-\ell\right)}} \cdot \left(\sin k \cdot \tan k\right)}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      4. associate-*l*59.1%

        \[\leadsto \frac{\frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\left(-\ell\right) \cdot \left(-\ell\right)} \cdot \sin k\right) \cdot \tan k}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      5. *-commutative59.1%

        \[\leadsto \frac{\frac{2}{\color{blue}{\tan k \cdot \left(\frac{{t}^{3}}{\left(-\ell\right) \cdot \left(-\ell\right)} \cdot \sin k\right)}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      6. sqr-neg59.1%

        \[\leadsto \frac{\frac{2}{\tan k \cdot \left(\frac{{t}^{3}}{\color{blue}{\ell \cdot \ell}} \cdot \sin k\right)}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      7. associate-*l/62.2%

        \[\leadsto \frac{\frac{2}{\tan k \cdot \color{blue}{\frac{{t}^{3} \cdot \sin k}{\ell \cdot \ell}}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      8. associate-*r/60.9%

        \[\leadsto \frac{\frac{2}{\color{blue}{\frac{\tan k \cdot \left({t}^{3} \cdot \sin k\right)}{\ell \cdot \ell}}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      9. associate-/r/61.0%

        \[\leadsto \frac{\color{blue}{\frac{2}{\tan k \cdot \left({t}^{3} \cdot \sin k\right)} \cdot \left(\ell \cdot \ell\right)}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
    3. Simplified61.0%

      \[\leadsto \color{blue}{\frac{\frac{2}{\tan k \cdot \left({t}^{3} \cdot \sin k\right)} \cdot \left(\ell \cdot \ell\right)}{2 + {\left(\frac{k}{t}\right)}^{2}}} \]
    4. Taylor expanded in k around 0 51.2%

      \[\leadsto \color{blue}{\frac{{\ell}^{2}}{{k}^{2} \cdot {t}^{3}}} \]
    5. Step-by-step derivation
      1. unpow251.2%

        \[\leadsto \frac{\color{blue}{\ell \cdot \ell}}{{k}^{2} \cdot {t}^{3}} \]
      2. times-frac55.4%

        \[\leadsto \color{blue}{\frac{\ell}{{k}^{2}} \cdot \frac{\ell}{{t}^{3}}} \]
      3. unpow255.4%

        \[\leadsto \frac{\ell}{\color{blue}{k \cdot k}} \cdot \frac{\ell}{{t}^{3}} \]
    6. Simplified55.4%

      \[\leadsto \color{blue}{\frac{\ell}{k \cdot k} \cdot \frac{\ell}{{t}^{3}}} \]
    7. Taylor expanded in l around 0 55.4%

      \[\leadsto \color{blue}{\frac{\ell}{{k}^{2}}} \cdot \frac{\ell}{{t}^{3}} \]
    8. Step-by-step derivation
      1. unpow255.4%

        \[\leadsto \frac{\ell}{\color{blue}{k \cdot k}} \cdot \frac{\ell}{{t}^{3}} \]
      2. associate-/r*59.1%

        \[\leadsto \color{blue}{\frac{\frac{\ell}{k}}{k}} \cdot \frac{\ell}{{t}^{3}} \]
    9. Simplified59.1%

      \[\leadsto \color{blue}{\frac{\frac{\ell}{k}}{k}} \cdot \frac{\ell}{{t}^{3}} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification64.1%

    \[\leadsto \begin{array}{l} \mathbf{if}\;t \leq -3.5 \cdot 10^{-13}:\\ \;\;\;\;\frac{\ell \cdot \frac{\ell}{{t}^{3}}}{k \cdot k}\\ \mathbf{elif}\;t \leq 1.4 \cdot 10^{-80}:\\ \;\;\;\;\frac{2}{\frac{t \cdot \frac{k}{\ell}}{\frac{\ell}{{k}^{3}}}}\\ \mathbf{else}:\\ \;\;\;\;\frac{\ell}{{t}^{3}} \cdot \frac{\frac{\ell}{k}}{k}\\ \end{array} \]

Alternative 17: 59.0% accurate, 3.8× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;t \leq 5.5 \cdot 10^{-29}:\\ \;\;\;\;2 \cdot \left(\frac{\ell}{t} \cdot \frac{\ell}{{k}^{4}}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{\ell}{{t}^{3}} \cdot \frac{\ell}{k \cdot k}\\ \end{array} \end{array} \]
(FPCore (t l k)
 :precision binary64
 (if (<= t 5.5e-29)
   (* 2.0 (* (/ l t) (/ l (pow k 4.0))))
   (* (/ l (pow t 3.0)) (/ l (* k k)))))
double code(double t, double l, double k) {
	double tmp;
	if (t <= 5.5e-29) {
		tmp = 2.0 * ((l / t) * (l / pow(k, 4.0)));
	} else {
		tmp = (l / pow(t, 3.0)) * (l / (k * k));
	}
	return tmp;
}
real(8) function code(t, l, k)
    real(8), intent (in) :: t
    real(8), intent (in) :: l
    real(8), intent (in) :: k
    real(8) :: tmp
    if (t <= 5.5d-29) then
        tmp = 2.0d0 * ((l / t) * (l / (k ** 4.0d0)))
    else
        tmp = (l / (t ** 3.0d0)) * (l / (k * k))
    end if
    code = tmp
end function
public static double code(double t, double l, double k) {
	double tmp;
	if (t <= 5.5e-29) {
		tmp = 2.0 * ((l / t) * (l / Math.pow(k, 4.0)));
	} else {
		tmp = (l / Math.pow(t, 3.0)) * (l / (k * k));
	}
	return tmp;
}
def code(t, l, k):
	tmp = 0
	if t <= 5.5e-29:
		tmp = 2.0 * ((l / t) * (l / math.pow(k, 4.0)))
	else:
		tmp = (l / math.pow(t, 3.0)) * (l / (k * k))
	return tmp
function code(t, l, k)
	tmp = 0.0
	if (t <= 5.5e-29)
		tmp = Float64(2.0 * Float64(Float64(l / t) * Float64(l / (k ^ 4.0))));
	else
		tmp = Float64(Float64(l / (t ^ 3.0)) * Float64(l / Float64(k * k)));
	end
	return tmp
end
function tmp_2 = code(t, l, k)
	tmp = 0.0;
	if (t <= 5.5e-29)
		tmp = 2.0 * ((l / t) * (l / (k ^ 4.0)));
	else
		tmp = (l / (t ^ 3.0)) * (l / (k * k));
	end
	tmp_2 = tmp;
end
code[t_, l_, k_] := If[LessEqual[t, 5.5e-29], N[(2.0 * N[(N[(l / t), $MachinePrecision] * N[(l / N[Power[k, 4.0], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(l / N[Power[t, 3.0], $MachinePrecision]), $MachinePrecision] * N[(l / N[(k * k), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;t \leq 5.5 \cdot 10^{-29}:\\
\;\;\;\;2 \cdot \left(\frac{\ell}{t} \cdot \frac{\ell}{{k}^{4}}\right)\\

\mathbf{else}:\\
\;\;\;\;\frac{\ell}{{t}^{3}} \cdot \frac{\ell}{k \cdot k}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if t < 5.4999999999999999e-29

    1. Initial program 42.8%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)} \]
    2. Taylor expanded in t around 0 62.3%

      \[\leadsto \frac{2}{\color{blue}{\frac{{k}^{2} \cdot \left(t \cdot {\sin k}^{2}\right)}{{\ell}^{2} \cdot \cos k}}} \]
    3. Step-by-step derivation
      1. associate-*r*62.3%

        \[\leadsto \frac{2}{\frac{\color{blue}{\left({k}^{2} \cdot t\right) \cdot {\sin k}^{2}}}{{\ell}^{2} \cdot \cos k}} \]
      2. times-frac62.8%

        \[\leadsto \frac{2}{\color{blue}{\frac{{k}^{2} \cdot t}{{\ell}^{2}} \cdot \frac{{\sin k}^{2}}{\cos k}}} \]
      3. unpow262.8%

        \[\leadsto \frac{2}{\frac{\color{blue}{\left(k \cdot k\right)} \cdot t}{{\ell}^{2}} \cdot \frac{{\sin k}^{2}}{\cos k}} \]
      4. associate-*l*64.9%

        \[\leadsto \frac{2}{\frac{\color{blue}{k \cdot \left(k \cdot t\right)}}{{\ell}^{2}} \cdot \frac{{\sin k}^{2}}{\cos k}} \]
      5. unpow264.9%

        \[\leadsto \frac{2}{\frac{k \cdot \left(k \cdot t\right)}{\color{blue}{\ell \cdot \ell}} \cdot \frac{{\sin k}^{2}}{\cos k}} \]
    4. Simplified64.9%

      \[\leadsto \frac{2}{\color{blue}{\frac{k \cdot \left(k \cdot t\right)}{\ell \cdot \ell} \cdot \frac{{\sin k}^{2}}{\cos k}}} \]
    5. Taylor expanded in k around 0 57.3%

      \[\leadsto \color{blue}{2 \cdot \frac{{\ell}^{2}}{{k}^{4} \cdot t}} \]
    6. Step-by-step derivation
      1. unpow257.3%

        \[\leadsto 2 \cdot \frac{\color{blue}{\ell \cdot \ell}}{{k}^{4} \cdot t} \]
      2. *-commutative57.3%

        \[\leadsto 2 \cdot \frac{\ell \cdot \ell}{\color{blue}{t \cdot {k}^{4}}} \]
      3. times-frac63.2%

        \[\leadsto 2 \cdot \color{blue}{\left(\frac{\ell}{t} \cdot \frac{\ell}{{k}^{4}}\right)} \]
    7. Simplified63.2%

      \[\leadsto \color{blue}{2 \cdot \left(\frac{\ell}{t} \cdot \frac{\ell}{{k}^{4}}\right)} \]

    if 5.4999999999999999e-29 < t

    1. Initial program 57.8%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)} \]
    2. Step-by-step derivation
      1. associate-/r*57.9%

        \[\leadsto \color{blue}{\frac{\frac{2}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1}} \]
      2. associate-*l*52.1%

        \[\leadsto \frac{\frac{2}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      3. sqr-neg52.1%

        \[\leadsto \frac{\frac{2}{\frac{{t}^{3}}{\color{blue}{\left(-\ell\right) \cdot \left(-\ell\right)}} \cdot \left(\sin k \cdot \tan k\right)}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      4. associate-*l*57.9%

        \[\leadsto \frac{\frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\left(-\ell\right) \cdot \left(-\ell\right)} \cdot \sin k\right) \cdot \tan k}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      5. *-commutative57.9%

        \[\leadsto \frac{\frac{2}{\color{blue}{\tan k \cdot \left(\frac{{t}^{3}}{\left(-\ell\right) \cdot \left(-\ell\right)} \cdot \sin k\right)}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      6. sqr-neg57.9%

        \[\leadsto \frac{\frac{2}{\tan k \cdot \left(\frac{{t}^{3}}{\color{blue}{\ell \cdot \ell}} \cdot \sin k\right)}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      7. associate-*l/61.4%

        \[\leadsto \frac{\frac{2}{\tan k \cdot \color{blue}{\frac{{t}^{3} \cdot \sin k}{\ell \cdot \ell}}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      8. associate-*r/60.1%

        \[\leadsto \frac{\frac{2}{\color{blue}{\frac{\tan k \cdot \left({t}^{3} \cdot \sin k\right)}{\ell \cdot \ell}}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      9. associate-/r/60.1%

        \[\leadsto \frac{\color{blue}{\frac{2}{\tan k \cdot \left({t}^{3} \cdot \sin k\right)} \cdot \left(\ell \cdot \ell\right)}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
    3. Simplified60.1%

      \[\leadsto \color{blue}{\frac{\frac{2}{\tan k \cdot \left({t}^{3} \cdot \sin k\right)} \cdot \left(\ell \cdot \ell\right)}{2 + {\left(\frac{k}{t}\right)}^{2}}} \]
    4. Taylor expanded in k around 0 49.4%

      \[\leadsto \color{blue}{\frac{{\ell}^{2}}{{k}^{2} \cdot {t}^{3}}} \]
    5. Step-by-step derivation
      1. unpow249.4%

        \[\leadsto \frac{\color{blue}{\ell \cdot \ell}}{{k}^{2} \cdot {t}^{3}} \]
      2. times-frac53.9%

        \[\leadsto \color{blue}{\frac{\ell}{{k}^{2}} \cdot \frac{\ell}{{t}^{3}}} \]
      3. unpow253.9%

        \[\leadsto \frac{\ell}{\color{blue}{k \cdot k}} \cdot \frac{\ell}{{t}^{3}} \]
    6. Simplified53.9%

      \[\leadsto \color{blue}{\frac{\ell}{k \cdot k} \cdot \frac{\ell}{{t}^{3}}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification60.6%

    \[\leadsto \begin{array}{l} \mathbf{if}\;t \leq 5.5 \cdot 10^{-29}:\\ \;\;\;\;2 \cdot \left(\frac{\ell}{t} \cdot \frac{\ell}{{k}^{4}}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{\ell}{{t}^{3}} \cdot \frac{\ell}{k \cdot k}\\ \end{array} \]

Alternative 18: 60.7% accurate, 3.8× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;t \leq 6 \cdot 10^{-82}:\\ \;\;\;\;2 \cdot \left(\frac{\ell}{t} \cdot \frac{\ell}{{k}^{4}}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{\ell}{{t}^{3}} \cdot \frac{\frac{\ell}{k}}{k}\\ \end{array} \end{array} \]
(FPCore (t l k)
 :precision binary64
 (if (<= t 6e-82)
   (* 2.0 (* (/ l t) (/ l (pow k 4.0))))
   (* (/ l (pow t 3.0)) (/ (/ l k) k))))
double code(double t, double l, double k) {
	double tmp;
	if (t <= 6e-82) {
		tmp = 2.0 * ((l / t) * (l / pow(k, 4.0)));
	} else {
		tmp = (l / pow(t, 3.0)) * ((l / k) / k);
	}
	return tmp;
}
real(8) function code(t, l, k)
    real(8), intent (in) :: t
    real(8), intent (in) :: l
    real(8), intent (in) :: k
    real(8) :: tmp
    if (t <= 6d-82) then
        tmp = 2.0d0 * ((l / t) * (l / (k ** 4.0d0)))
    else
        tmp = (l / (t ** 3.0d0)) * ((l / k) / k)
    end if
    code = tmp
end function
public static double code(double t, double l, double k) {
	double tmp;
	if (t <= 6e-82) {
		tmp = 2.0 * ((l / t) * (l / Math.pow(k, 4.0)));
	} else {
		tmp = (l / Math.pow(t, 3.0)) * ((l / k) / k);
	}
	return tmp;
}
def code(t, l, k):
	tmp = 0
	if t <= 6e-82:
		tmp = 2.0 * ((l / t) * (l / math.pow(k, 4.0)))
	else:
		tmp = (l / math.pow(t, 3.0)) * ((l / k) / k)
	return tmp
function code(t, l, k)
	tmp = 0.0
	if (t <= 6e-82)
		tmp = Float64(2.0 * Float64(Float64(l / t) * Float64(l / (k ^ 4.0))));
	else
		tmp = Float64(Float64(l / (t ^ 3.0)) * Float64(Float64(l / k) / k));
	end
	return tmp
end
function tmp_2 = code(t, l, k)
	tmp = 0.0;
	if (t <= 6e-82)
		tmp = 2.0 * ((l / t) * (l / (k ^ 4.0)));
	else
		tmp = (l / (t ^ 3.0)) * ((l / k) / k);
	end
	tmp_2 = tmp;
end
code[t_, l_, k_] := If[LessEqual[t, 6e-82], N[(2.0 * N[(N[(l / t), $MachinePrecision] * N[(l / N[Power[k, 4.0], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(l / N[Power[t, 3.0], $MachinePrecision]), $MachinePrecision] * N[(N[(l / k), $MachinePrecision] / k), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;t \leq 6 \cdot 10^{-82}:\\
\;\;\;\;2 \cdot \left(\frac{\ell}{t} \cdot \frac{\ell}{{k}^{4}}\right)\\

\mathbf{else}:\\
\;\;\;\;\frac{\ell}{{t}^{3}} \cdot \frac{\frac{\ell}{k}}{k}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if t < 5.9999999999999998e-82

    1. Initial program 41.7%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)} \]
    2. Taylor expanded in t around 0 62.0%

      \[\leadsto \frac{2}{\color{blue}{\frac{{k}^{2} \cdot \left(t \cdot {\sin k}^{2}\right)}{{\ell}^{2} \cdot \cos k}}} \]
    3. Step-by-step derivation
      1. associate-*r*62.0%

        \[\leadsto \frac{2}{\frac{\color{blue}{\left({k}^{2} \cdot t\right) \cdot {\sin k}^{2}}}{{\ell}^{2} \cdot \cos k}} \]
      2. times-frac62.5%

        \[\leadsto \frac{2}{\color{blue}{\frac{{k}^{2} \cdot t}{{\ell}^{2}} \cdot \frac{{\sin k}^{2}}{\cos k}}} \]
      3. unpow262.5%

        \[\leadsto \frac{2}{\frac{\color{blue}{\left(k \cdot k\right)} \cdot t}{{\ell}^{2}} \cdot \frac{{\sin k}^{2}}{\cos k}} \]
      4. associate-*l*64.7%

        \[\leadsto \frac{2}{\frac{\color{blue}{k \cdot \left(k \cdot t\right)}}{{\ell}^{2}} \cdot \frac{{\sin k}^{2}}{\cos k}} \]
      5. unpow264.7%

        \[\leadsto \frac{2}{\frac{k \cdot \left(k \cdot t\right)}{\color{blue}{\ell \cdot \ell}} \cdot \frac{{\sin k}^{2}}{\cos k}} \]
    4. Simplified64.7%

      \[\leadsto \frac{2}{\color{blue}{\frac{k \cdot \left(k \cdot t\right)}{\ell \cdot \ell} \cdot \frac{{\sin k}^{2}}{\cos k}}} \]
    5. Taylor expanded in k around 0 56.8%

      \[\leadsto \color{blue}{2 \cdot \frac{{\ell}^{2}}{{k}^{4} \cdot t}} \]
    6. Step-by-step derivation
      1. unpow256.8%

        \[\leadsto 2 \cdot \frac{\color{blue}{\ell \cdot \ell}}{{k}^{4} \cdot t} \]
      2. *-commutative56.8%

        \[\leadsto 2 \cdot \frac{\ell \cdot \ell}{\color{blue}{t \cdot {k}^{4}}} \]
      3. times-frac62.9%

        \[\leadsto 2 \cdot \color{blue}{\left(\frac{\ell}{t} \cdot \frac{\ell}{{k}^{4}}\right)} \]
    7. Simplified62.9%

      \[\leadsto \color{blue}{2 \cdot \left(\frac{\ell}{t} \cdot \frac{\ell}{{k}^{4}}\right)} \]

    if 5.9999999999999998e-82 < t

    1. Initial program 58.9%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)} \]
    2. Step-by-step derivation
      1. associate-/r*59.1%

        \[\leadsto \color{blue}{\frac{\frac{2}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1}} \]
      2. associate-*l*53.7%

        \[\leadsto \frac{\frac{2}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      3. sqr-neg53.7%

        \[\leadsto \frac{\frac{2}{\frac{{t}^{3}}{\color{blue}{\left(-\ell\right) \cdot \left(-\ell\right)}} \cdot \left(\sin k \cdot \tan k\right)}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      4. associate-*l*59.1%

        \[\leadsto \frac{\frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\left(-\ell\right) \cdot \left(-\ell\right)} \cdot \sin k\right) \cdot \tan k}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      5. *-commutative59.1%

        \[\leadsto \frac{\frac{2}{\color{blue}{\tan k \cdot \left(\frac{{t}^{3}}{\left(-\ell\right) \cdot \left(-\ell\right)} \cdot \sin k\right)}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      6. sqr-neg59.1%

        \[\leadsto \frac{\frac{2}{\tan k \cdot \left(\frac{{t}^{3}}{\color{blue}{\ell \cdot \ell}} \cdot \sin k\right)}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      7. associate-*l/62.2%

        \[\leadsto \frac{\frac{2}{\tan k \cdot \color{blue}{\frac{{t}^{3} \cdot \sin k}{\ell \cdot \ell}}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      8. associate-*r/60.9%

        \[\leadsto \frac{\frac{2}{\color{blue}{\frac{\tan k \cdot \left({t}^{3} \cdot \sin k\right)}{\ell \cdot \ell}}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      9. associate-/r/61.0%

        \[\leadsto \frac{\color{blue}{\frac{2}{\tan k \cdot \left({t}^{3} \cdot \sin k\right)} \cdot \left(\ell \cdot \ell\right)}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
    3. Simplified61.0%

      \[\leadsto \color{blue}{\frac{\frac{2}{\tan k \cdot \left({t}^{3} \cdot \sin k\right)} \cdot \left(\ell \cdot \ell\right)}{2 + {\left(\frac{k}{t}\right)}^{2}}} \]
    4. Taylor expanded in k around 0 51.2%

      \[\leadsto \color{blue}{\frac{{\ell}^{2}}{{k}^{2} \cdot {t}^{3}}} \]
    5. Step-by-step derivation
      1. unpow251.2%

        \[\leadsto \frac{\color{blue}{\ell \cdot \ell}}{{k}^{2} \cdot {t}^{3}} \]
      2. times-frac55.4%

        \[\leadsto \color{blue}{\frac{\ell}{{k}^{2}} \cdot \frac{\ell}{{t}^{3}}} \]
      3. unpow255.4%

        \[\leadsto \frac{\ell}{\color{blue}{k \cdot k}} \cdot \frac{\ell}{{t}^{3}} \]
    6. Simplified55.4%

      \[\leadsto \color{blue}{\frac{\ell}{k \cdot k} \cdot \frac{\ell}{{t}^{3}}} \]
    7. Taylor expanded in l around 0 55.4%

      \[\leadsto \color{blue}{\frac{\ell}{{k}^{2}}} \cdot \frac{\ell}{{t}^{3}} \]
    8. Step-by-step derivation
      1. unpow255.4%

        \[\leadsto \frac{\ell}{\color{blue}{k \cdot k}} \cdot \frac{\ell}{{t}^{3}} \]
      2. associate-/r*59.1%

        \[\leadsto \color{blue}{\frac{\frac{\ell}{k}}{k}} \cdot \frac{\ell}{{t}^{3}} \]
    9. Simplified59.1%

      \[\leadsto \color{blue}{\frac{\frac{\ell}{k}}{k}} \cdot \frac{\ell}{{t}^{3}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification61.7%

    \[\leadsto \begin{array}{l} \mathbf{if}\;t \leq 6 \cdot 10^{-82}:\\ \;\;\;\;2 \cdot \left(\frac{\ell}{t} \cdot \frac{\ell}{{k}^{4}}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{\ell}{{t}^{3}} \cdot \frac{\frac{\ell}{k}}{k}\\ \end{array} \]

Alternative 19: 60.7% accurate, 3.8× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;t \leq 4.7 \cdot 10^{-80}:\\ \;\;\;\;\frac{2}{\frac{t}{\ell} \cdot \frac{{k}^{4}}{\ell}}\\ \mathbf{else}:\\ \;\;\;\;\frac{\ell}{{t}^{3}} \cdot \frac{\frac{\ell}{k}}{k}\\ \end{array} \end{array} \]
(FPCore (t l k)
 :precision binary64
 (if (<= t 4.7e-80)
   (/ 2.0 (* (/ t l) (/ (pow k 4.0) l)))
   (* (/ l (pow t 3.0)) (/ (/ l k) k))))
double code(double t, double l, double k) {
	double tmp;
	if (t <= 4.7e-80) {
		tmp = 2.0 / ((t / l) * (pow(k, 4.0) / l));
	} else {
		tmp = (l / pow(t, 3.0)) * ((l / k) / k);
	}
	return tmp;
}
real(8) function code(t, l, k)
    real(8), intent (in) :: t
    real(8), intent (in) :: l
    real(8), intent (in) :: k
    real(8) :: tmp
    if (t <= 4.7d-80) then
        tmp = 2.0d0 / ((t / l) * ((k ** 4.0d0) / l))
    else
        tmp = (l / (t ** 3.0d0)) * ((l / k) / k)
    end if
    code = tmp
end function
public static double code(double t, double l, double k) {
	double tmp;
	if (t <= 4.7e-80) {
		tmp = 2.0 / ((t / l) * (Math.pow(k, 4.0) / l));
	} else {
		tmp = (l / Math.pow(t, 3.0)) * ((l / k) / k);
	}
	return tmp;
}
def code(t, l, k):
	tmp = 0
	if t <= 4.7e-80:
		tmp = 2.0 / ((t / l) * (math.pow(k, 4.0) / l))
	else:
		tmp = (l / math.pow(t, 3.0)) * ((l / k) / k)
	return tmp
function code(t, l, k)
	tmp = 0.0
	if (t <= 4.7e-80)
		tmp = Float64(2.0 / Float64(Float64(t / l) * Float64((k ^ 4.0) / l)));
	else
		tmp = Float64(Float64(l / (t ^ 3.0)) * Float64(Float64(l / k) / k));
	end
	return tmp
end
function tmp_2 = code(t, l, k)
	tmp = 0.0;
	if (t <= 4.7e-80)
		tmp = 2.0 / ((t / l) * ((k ^ 4.0) / l));
	else
		tmp = (l / (t ^ 3.0)) * ((l / k) / k);
	end
	tmp_2 = tmp;
end
code[t_, l_, k_] := If[LessEqual[t, 4.7e-80], N[(2.0 / N[(N[(t / l), $MachinePrecision] * N[(N[Power[k, 4.0], $MachinePrecision] / l), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(l / N[Power[t, 3.0], $MachinePrecision]), $MachinePrecision] * N[(N[(l / k), $MachinePrecision] / k), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;t \leq 4.7 \cdot 10^{-80}:\\
\;\;\;\;\frac{2}{\frac{t}{\ell} \cdot \frac{{k}^{4}}{\ell}}\\

\mathbf{else}:\\
\;\;\;\;\frac{\ell}{{t}^{3}} \cdot \frac{\frac{\ell}{k}}{k}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if t < 4.69999999999999973e-80

    1. Initial program 41.7%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)} \]
    2. Taylor expanded in t around 0 62.0%

      \[\leadsto \frac{2}{\color{blue}{\frac{{k}^{2} \cdot \left(t \cdot {\sin k}^{2}\right)}{{\ell}^{2} \cdot \cos k}}} \]
    3. Step-by-step derivation
      1. associate-*r*62.0%

        \[\leadsto \frac{2}{\frac{\color{blue}{\left({k}^{2} \cdot t\right) \cdot {\sin k}^{2}}}{{\ell}^{2} \cdot \cos k}} \]
      2. times-frac62.5%

        \[\leadsto \frac{2}{\color{blue}{\frac{{k}^{2} \cdot t}{{\ell}^{2}} \cdot \frac{{\sin k}^{2}}{\cos k}}} \]
      3. unpow262.5%

        \[\leadsto \frac{2}{\frac{\color{blue}{\left(k \cdot k\right)} \cdot t}{{\ell}^{2}} \cdot \frac{{\sin k}^{2}}{\cos k}} \]
      4. associate-*l*64.7%

        \[\leadsto \frac{2}{\frac{\color{blue}{k \cdot \left(k \cdot t\right)}}{{\ell}^{2}} \cdot \frac{{\sin k}^{2}}{\cos k}} \]
      5. unpow264.7%

        \[\leadsto \frac{2}{\frac{k \cdot \left(k \cdot t\right)}{\color{blue}{\ell \cdot \ell}} \cdot \frac{{\sin k}^{2}}{\cos k}} \]
    4. Simplified64.7%

      \[\leadsto \frac{2}{\color{blue}{\frac{k \cdot \left(k \cdot t\right)}{\ell \cdot \ell} \cdot \frac{{\sin k}^{2}}{\cos k}}} \]
    5. Taylor expanded in k around 0 57.1%

      \[\leadsto \frac{2}{\color{blue}{\frac{{k}^{4} \cdot t}{{\ell}^{2}}}} \]
    6. Step-by-step derivation
      1. *-commutative57.1%

        \[\leadsto \frac{2}{\frac{\color{blue}{t \cdot {k}^{4}}}{{\ell}^{2}}} \]
      2. unpow257.1%

        \[\leadsto \frac{2}{\frac{t \cdot {k}^{4}}{\color{blue}{\ell \cdot \ell}}} \]
      3. times-frac63.2%

        \[\leadsto \frac{2}{\color{blue}{\frac{t}{\ell} \cdot \frac{{k}^{4}}{\ell}}} \]
    7. Simplified63.2%

      \[\leadsto \frac{2}{\color{blue}{\frac{t}{\ell} \cdot \frac{{k}^{4}}{\ell}}} \]

    if 4.69999999999999973e-80 < t

    1. Initial program 58.9%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)} \]
    2. Step-by-step derivation
      1. associate-/r*59.1%

        \[\leadsto \color{blue}{\frac{\frac{2}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1}} \]
      2. associate-*l*53.7%

        \[\leadsto \frac{\frac{2}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      3. sqr-neg53.7%

        \[\leadsto \frac{\frac{2}{\frac{{t}^{3}}{\color{blue}{\left(-\ell\right) \cdot \left(-\ell\right)}} \cdot \left(\sin k \cdot \tan k\right)}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      4. associate-*l*59.1%

        \[\leadsto \frac{\frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\left(-\ell\right) \cdot \left(-\ell\right)} \cdot \sin k\right) \cdot \tan k}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      5. *-commutative59.1%

        \[\leadsto \frac{\frac{2}{\color{blue}{\tan k \cdot \left(\frac{{t}^{3}}{\left(-\ell\right) \cdot \left(-\ell\right)} \cdot \sin k\right)}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      6. sqr-neg59.1%

        \[\leadsto \frac{\frac{2}{\tan k \cdot \left(\frac{{t}^{3}}{\color{blue}{\ell \cdot \ell}} \cdot \sin k\right)}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      7. associate-*l/62.2%

        \[\leadsto \frac{\frac{2}{\tan k \cdot \color{blue}{\frac{{t}^{3} \cdot \sin k}{\ell \cdot \ell}}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      8. associate-*r/60.9%

        \[\leadsto \frac{\frac{2}{\color{blue}{\frac{\tan k \cdot \left({t}^{3} \cdot \sin k\right)}{\ell \cdot \ell}}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
      9. associate-/r/61.0%

        \[\leadsto \frac{\color{blue}{\frac{2}{\tan k \cdot \left({t}^{3} \cdot \sin k\right)} \cdot \left(\ell \cdot \ell\right)}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1} \]
    3. Simplified61.0%

      \[\leadsto \color{blue}{\frac{\frac{2}{\tan k \cdot \left({t}^{3} \cdot \sin k\right)} \cdot \left(\ell \cdot \ell\right)}{2 + {\left(\frac{k}{t}\right)}^{2}}} \]
    4. Taylor expanded in k around 0 51.2%

      \[\leadsto \color{blue}{\frac{{\ell}^{2}}{{k}^{2} \cdot {t}^{3}}} \]
    5. Step-by-step derivation
      1. unpow251.2%

        \[\leadsto \frac{\color{blue}{\ell \cdot \ell}}{{k}^{2} \cdot {t}^{3}} \]
      2. times-frac55.4%

        \[\leadsto \color{blue}{\frac{\ell}{{k}^{2}} \cdot \frac{\ell}{{t}^{3}}} \]
      3. unpow255.4%

        \[\leadsto \frac{\ell}{\color{blue}{k \cdot k}} \cdot \frac{\ell}{{t}^{3}} \]
    6. Simplified55.4%

      \[\leadsto \color{blue}{\frac{\ell}{k \cdot k} \cdot \frac{\ell}{{t}^{3}}} \]
    7. Taylor expanded in l around 0 55.4%

      \[\leadsto \color{blue}{\frac{\ell}{{k}^{2}}} \cdot \frac{\ell}{{t}^{3}} \]
    8. Step-by-step derivation
      1. unpow255.4%

        \[\leadsto \frac{\ell}{\color{blue}{k \cdot k}} \cdot \frac{\ell}{{t}^{3}} \]
      2. associate-/r*59.1%

        \[\leadsto \color{blue}{\frac{\frac{\ell}{k}}{k}} \cdot \frac{\ell}{{t}^{3}} \]
    9. Simplified59.1%

      \[\leadsto \color{blue}{\frac{\frac{\ell}{k}}{k}} \cdot \frac{\ell}{{t}^{3}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification62.0%

    \[\leadsto \begin{array}{l} \mathbf{if}\;t \leq 4.7 \cdot 10^{-80}:\\ \;\;\;\;\frac{2}{\frac{t}{\ell} \cdot \frac{{k}^{4}}{\ell}}\\ \mathbf{else}:\\ \;\;\;\;\frac{\ell}{{t}^{3}} \cdot \frac{\frac{\ell}{k}}{k}\\ \end{array} \]

Alternative 20: 56.2% accurate, 3.8× speedup?

\[\begin{array}{l} \\ 2 \cdot \left(\frac{\ell}{t} \cdot \frac{\ell}{{k}^{4}}\right) \end{array} \]
(FPCore (t l k) :precision binary64 (* 2.0 (* (/ l t) (/ l (pow k 4.0)))))
double code(double t, double l, double k) {
	return 2.0 * ((l / t) * (l / pow(k, 4.0)));
}
real(8) function code(t, l, k)
    real(8), intent (in) :: t
    real(8), intent (in) :: l
    real(8), intent (in) :: k
    code = 2.0d0 * ((l / t) * (l / (k ** 4.0d0)))
end function
public static double code(double t, double l, double k) {
	return 2.0 * ((l / t) * (l / Math.pow(k, 4.0)));
}
def code(t, l, k):
	return 2.0 * ((l / t) * (l / math.pow(k, 4.0)))
function code(t, l, k)
	return Float64(2.0 * Float64(Float64(l / t) * Float64(l / (k ^ 4.0))))
end
function tmp = code(t, l, k)
	tmp = 2.0 * ((l / t) * (l / (k ^ 4.0)));
end
code[t_, l_, k_] := N[(2.0 * N[(N[(l / t), $MachinePrecision] * N[(l / N[Power[k, 4.0], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
2 \cdot \left(\frac{\ell}{t} \cdot \frac{\ell}{{k}^{4}}\right)
\end{array}
Derivation
  1. Initial program 47.0%

    \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)} \]
  2. Taylor expanded in t around 0 57.0%

    \[\leadsto \frac{2}{\color{blue}{\frac{{k}^{2} \cdot \left(t \cdot {\sin k}^{2}\right)}{{\ell}^{2} \cdot \cos k}}} \]
  3. Step-by-step derivation
    1. associate-*r*57.0%

      \[\leadsto \frac{2}{\frac{\color{blue}{\left({k}^{2} \cdot t\right) \cdot {\sin k}^{2}}}{{\ell}^{2} \cdot \cos k}} \]
    2. times-frac58.5%

      \[\leadsto \frac{2}{\color{blue}{\frac{{k}^{2} \cdot t}{{\ell}^{2}} \cdot \frac{{\sin k}^{2}}{\cos k}}} \]
    3. unpow258.5%

      \[\leadsto \frac{2}{\frac{\color{blue}{\left(k \cdot k\right)} \cdot t}{{\ell}^{2}} \cdot \frac{{\sin k}^{2}}{\cos k}} \]
    4. associate-*l*60.0%

      \[\leadsto \frac{2}{\frac{\color{blue}{k \cdot \left(k \cdot t\right)}}{{\ell}^{2}} \cdot \frac{{\sin k}^{2}}{\cos k}} \]
    5. unpow260.0%

      \[\leadsto \frac{2}{\frac{k \cdot \left(k \cdot t\right)}{\color{blue}{\ell \cdot \ell}} \cdot \frac{{\sin k}^{2}}{\cos k}} \]
  4. Simplified60.0%

    \[\leadsto \frac{2}{\color{blue}{\frac{k \cdot \left(k \cdot t\right)}{\ell \cdot \ell} \cdot \frac{{\sin k}^{2}}{\cos k}}} \]
  5. Taylor expanded in k around 0 53.4%

    \[\leadsto \color{blue}{2 \cdot \frac{{\ell}^{2}}{{k}^{4} \cdot t}} \]
  6. Step-by-step derivation
    1. unpow253.4%

      \[\leadsto 2 \cdot \frac{\color{blue}{\ell \cdot \ell}}{{k}^{4} \cdot t} \]
    2. *-commutative53.4%

      \[\leadsto 2 \cdot \frac{\ell \cdot \ell}{\color{blue}{t \cdot {k}^{4}}} \]
    3. times-frac57.4%

      \[\leadsto 2 \cdot \color{blue}{\left(\frac{\ell}{t} \cdot \frac{\ell}{{k}^{4}}\right)} \]
  7. Simplified57.4%

    \[\leadsto \color{blue}{2 \cdot \left(\frac{\ell}{t} \cdot \frac{\ell}{{k}^{4}}\right)} \]
  8. Final simplification57.4%

    \[\leadsto 2 \cdot \left(\frac{\ell}{t} \cdot \frac{\ell}{{k}^{4}}\right) \]

Alternative 21: 55.4% accurate, 3.8× speedup?

\[\begin{array}{l} \\ 2 \cdot \frac{\ell}{\frac{t \cdot {k}^{4}}{\ell}} \end{array} \]
(FPCore (t l k) :precision binary64 (* 2.0 (/ l (/ (* t (pow k 4.0)) l))))
double code(double t, double l, double k) {
	return 2.0 * (l / ((t * pow(k, 4.0)) / l));
}
real(8) function code(t, l, k)
    real(8), intent (in) :: t
    real(8), intent (in) :: l
    real(8), intent (in) :: k
    code = 2.0d0 * (l / ((t * (k ** 4.0d0)) / l))
end function
public static double code(double t, double l, double k) {
	return 2.0 * (l / ((t * Math.pow(k, 4.0)) / l));
}
def code(t, l, k):
	return 2.0 * (l / ((t * math.pow(k, 4.0)) / l))
function code(t, l, k)
	return Float64(2.0 * Float64(l / Float64(Float64(t * (k ^ 4.0)) / l)))
end
function tmp = code(t, l, k)
	tmp = 2.0 * (l / ((t * (k ^ 4.0)) / l));
end
code[t_, l_, k_] := N[(2.0 * N[(l / N[(N[(t * N[Power[k, 4.0], $MachinePrecision]), $MachinePrecision] / l), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
2 \cdot \frac{\ell}{\frac{t \cdot {k}^{4}}{\ell}}
\end{array}
Derivation
  1. Initial program 47.0%

    \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)} \]
  2. Taylor expanded in t around 0 57.0%

    \[\leadsto \frac{2}{\color{blue}{\frac{{k}^{2} \cdot \left(t \cdot {\sin k}^{2}\right)}{{\ell}^{2} \cdot \cos k}}} \]
  3. Step-by-step derivation
    1. associate-*r*57.0%

      \[\leadsto \frac{2}{\frac{\color{blue}{\left({k}^{2} \cdot t\right) \cdot {\sin k}^{2}}}{{\ell}^{2} \cdot \cos k}} \]
    2. times-frac58.5%

      \[\leadsto \frac{2}{\color{blue}{\frac{{k}^{2} \cdot t}{{\ell}^{2}} \cdot \frac{{\sin k}^{2}}{\cos k}}} \]
    3. unpow258.5%

      \[\leadsto \frac{2}{\frac{\color{blue}{\left(k \cdot k\right)} \cdot t}{{\ell}^{2}} \cdot \frac{{\sin k}^{2}}{\cos k}} \]
    4. associate-*l*60.0%

      \[\leadsto \frac{2}{\frac{\color{blue}{k \cdot \left(k \cdot t\right)}}{{\ell}^{2}} \cdot \frac{{\sin k}^{2}}{\cos k}} \]
    5. unpow260.0%

      \[\leadsto \frac{2}{\frac{k \cdot \left(k \cdot t\right)}{\color{blue}{\ell \cdot \ell}} \cdot \frac{{\sin k}^{2}}{\cos k}} \]
  4. Simplified60.0%

    \[\leadsto \frac{2}{\color{blue}{\frac{k \cdot \left(k \cdot t\right)}{\ell \cdot \ell} \cdot \frac{{\sin k}^{2}}{\cos k}}} \]
  5. Step-by-step derivation
    1. associate-*r/60.0%

      \[\leadsto \frac{2}{\color{blue}{\frac{\frac{k \cdot \left(k \cdot t\right)}{\ell \cdot \ell} \cdot {\sin k}^{2}}{\cos k}}} \]
    2. times-frac69.4%

      \[\leadsto \frac{2}{\frac{\color{blue}{\left(\frac{k}{\ell} \cdot \frac{k \cdot t}{\ell}\right)} \cdot {\sin k}^{2}}{\cos k}} \]
  6. Applied egg-rr69.4%

    \[\leadsto \frac{2}{\color{blue}{\frac{\left(\frac{k}{\ell} \cdot \frac{k \cdot t}{\ell}\right) \cdot {\sin k}^{2}}{\cos k}}} \]
  7. Taylor expanded in k around 0 53.4%

    \[\leadsto \color{blue}{2 \cdot \frac{{\ell}^{2}}{{k}^{4} \cdot t}} \]
  8. Step-by-step derivation
    1. unpow253.4%

      \[\leadsto 2 \cdot \frac{\color{blue}{\ell \cdot \ell}}{{k}^{4} \cdot t} \]
    2. associate-/l*57.6%

      \[\leadsto 2 \cdot \color{blue}{\frac{\ell}{\frac{{k}^{4} \cdot t}{\ell}}} \]
  9. Simplified57.6%

    \[\leadsto \color{blue}{2 \cdot \frac{\ell}{\frac{{k}^{4} \cdot t}{\ell}}} \]
  10. Final simplification57.6%

    \[\leadsto 2 \cdot \frac{\ell}{\frac{t \cdot {k}^{4}}{\ell}} \]

Alternative 22: 31.8% accurate, 32.4× speedup?

\[\begin{array}{l} \\ 2 \cdot \left(-0.16666666666666666 \cdot \frac{\frac{\ell \cdot \ell}{k \cdot k}}{t}\right) \end{array} \]
(FPCore (t l k)
 :precision binary64
 (* 2.0 (* -0.16666666666666666 (/ (/ (* l l) (* k k)) t))))
double code(double t, double l, double k) {
	return 2.0 * (-0.16666666666666666 * (((l * l) / (k * k)) / t));
}
real(8) function code(t, l, k)
    real(8), intent (in) :: t
    real(8), intent (in) :: l
    real(8), intent (in) :: k
    code = 2.0d0 * ((-0.16666666666666666d0) * (((l * l) / (k * k)) / t))
end function
public static double code(double t, double l, double k) {
	return 2.0 * (-0.16666666666666666 * (((l * l) / (k * k)) / t));
}
def code(t, l, k):
	return 2.0 * (-0.16666666666666666 * (((l * l) / (k * k)) / t))
function code(t, l, k)
	return Float64(2.0 * Float64(-0.16666666666666666 * Float64(Float64(Float64(l * l) / Float64(k * k)) / t)))
end
function tmp = code(t, l, k)
	tmp = 2.0 * (-0.16666666666666666 * (((l * l) / (k * k)) / t));
end
code[t_, l_, k_] := N[(2.0 * N[(-0.16666666666666666 * N[(N[(N[(l * l), $MachinePrecision] / N[(k * k), $MachinePrecision]), $MachinePrecision] / t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
2 \cdot \left(-0.16666666666666666 \cdot \frac{\frac{\ell \cdot \ell}{k \cdot k}}{t}\right)
\end{array}
Derivation
  1. Initial program 47.0%

    \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)} \]
  2. Taylor expanded in t around 0 57.0%

    \[\leadsto \frac{2}{\color{blue}{\frac{{k}^{2} \cdot \left(t \cdot {\sin k}^{2}\right)}{{\ell}^{2} \cdot \cos k}}} \]
  3. Step-by-step derivation
    1. associate-*r*57.0%

      \[\leadsto \frac{2}{\frac{\color{blue}{\left({k}^{2} \cdot t\right) \cdot {\sin k}^{2}}}{{\ell}^{2} \cdot \cos k}} \]
    2. times-frac58.5%

      \[\leadsto \frac{2}{\color{blue}{\frac{{k}^{2} \cdot t}{{\ell}^{2}} \cdot \frac{{\sin k}^{2}}{\cos k}}} \]
    3. unpow258.5%

      \[\leadsto \frac{2}{\frac{\color{blue}{\left(k \cdot k\right)} \cdot t}{{\ell}^{2}} \cdot \frac{{\sin k}^{2}}{\cos k}} \]
    4. associate-*l*60.0%

      \[\leadsto \frac{2}{\frac{\color{blue}{k \cdot \left(k \cdot t\right)}}{{\ell}^{2}} \cdot \frac{{\sin k}^{2}}{\cos k}} \]
    5. unpow260.0%

      \[\leadsto \frac{2}{\frac{k \cdot \left(k \cdot t\right)}{\color{blue}{\ell \cdot \ell}} \cdot \frac{{\sin k}^{2}}{\cos k}} \]
  4. Simplified60.0%

    \[\leadsto \frac{2}{\color{blue}{\frac{k \cdot \left(k \cdot t\right)}{\ell \cdot \ell} \cdot \frac{{\sin k}^{2}}{\cos k}}} \]
  5. Step-by-step derivation
    1. associate-*r/60.0%

      \[\leadsto \frac{2}{\color{blue}{\frac{\frac{k \cdot \left(k \cdot t\right)}{\ell \cdot \ell} \cdot {\sin k}^{2}}{\cos k}}} \]
    2. times-frac69.4%

      \[\leadsto \frac{2}{\frac{\color{blue}{\left(\frac{k}{\ell} \cdot \frac{k \cdot t}{\ell}\right)} \cdot {\sin k}^{2}}{\cos k}} \]
  6. Applied egg-rr69.4%

    \[\leadsto \frac{2}{\color{blue}{\frac{\left(\frac{k}{\ell} \cdot \frac{k \cdot t}{\ell}\right) \cdot {\sin k}^{2}}{\cos k}}} \]
  7. Taylor expanded in k around 0 26.9%

    \[\leadsto \color{blue}{2 \cdot \frac{-0.5 \cdot \frac{{\ell}^{2}}{t} - -0.3333333333333333 \cdot \frac{{\ell}^{2}}{t}}{{k}^{2}} + 2 \cdot \frac{{\ell}^{2}}{{k}^{4} \cdot t}} \]
  8. Step-by-step derivation
    1. distribute-lft-out26.9%

      \[\leadsto \color{blue}{2 \cdot \left(\frac{-0.5 \cdot \frac{{\ell}^{2}}{t} - -0.3333333333333333 \cdot \frac{{\ell}^{2}}{t}}{{k}^{2}} + \frac{{\ell}^{2}}{{k}^{4} \cdot t}\right)} \]
    2. distribute-rgt-out--26.9%

      \[\leadsto 2 \cdot \left(\frac{\color{blue}{\frac{{\ell}^{2}}{t} \cdot \left(-0.5 - -0.3333333333333333\right)}}{{k}^{2}} + \frac{{\ell}^{2}}{{k}^{4} \cdot t}\right) \]
    3. unpow226.9%

      \[\leadsto 2 \cdot \left(\frac{\frac{{\ell}^{2}}{t} \cdot \left(-0.5 - -0.3333333333333333\right)}{\color{blue}{k \cdot k}} + \frac{{\ell}^{2}}{{k}^{4} \cdot t}\right) \]
    4. times-frac27.8%

      \[\leadsto 2 \cdot \left(\color{blue}{\frac{\frac{{\ell}^{2}}{t}}{k} \cdot \frac{-0.5 - -0.3333333333333333}{k}} + \frac{{\ell}^{2}}{{k}^{4} \cdot t}\right) \]
    5. associate-/r*27.9%

      \[\leadsto 2 \cdot \left(\color{blue}{\frac{{\ell}^{2}}{t \cdot k}} \cdot \frac{-0.5 - -0.3333333333333333}{k} + \frac{{\ell}^{2}}{{k}^{4} \cdot t}\right) \]
    6. unpow227.9%

      \[\leadsto 2 \cdot \left(\frac{\color{blue}{\ell \cdot \ell}}{t \cdot k} \cdot \frac{-0.5 - -0.3333333333333333}{k} + \frac{{\ell}^{2}}{{k}^{4} \cdot t}\right) \]
    7. times-frac28.0%

      \[\leadsto 2 \cdot \left(\color{blue}{\left(\frac{\ell}{t} \cdot \frac{\ell}{k}\right)} \cdot \frac{-0.5 - -0.3333333333333333}{k} + \frac{{\ell}^{2}}{{k}^{4} \cdot t}\right) \]
    8. metadata-eval28.0%

      \[\leadsto 2 \cdot \left(\left(\frac{\ell}{t} \cdot \frac{\ell}{k}\right) \cdot \frac{\color{blue}{-0.16666666666666666}}{k} + \frac{{\ell}^{2}}{{k}^{4} \cdot t}\right) \]
    9. unpow228.0%

      \[\leadsto 2 \cdot \left(\left(\frac{\ell}{t} \cdot \frac{\ell}{k}\right) \cdot \frac{-0.16666666666666666}{k} + \frac{\color{blue}{\ell \cdot \ell}}{{k}^{4} \cdot t}\right) \]
    10. *-commutative28.0%

      \[\leadsto 2 \cdot \left(\left(\frac{\ell}{t} \cdot \frac{\ell}{k}\right) \cdot \frac{-0.16666666666666666}{k} + \frac{\ell \cdot \ell}{\color{blue}{t \cdot {k}^{4}}}\right) \]
    11. times-frac33.1%

      \[\leadsto 2 \cdot \left(\left(\frac{\ell}{t} \cdot \frac{\ell}{k}\right) \cdot \frac{-0.16666666666666666}{k} + \color{blue}{\frac{\ell}{t} \cdot \frac{\ell}{{k}^{4}}}\right) \]
  9. Simplified33.1%

    \[\leadsto \color{blue}{2 \cdot \left(\left(\frac{\ell}{t} \cdot \frac{\ell}{k}\right) \cdot \frac{-0.16666666666666666}{k} + \frac{\ell}{t} \cdot \frac{\ell}{{k}^{4}}\right)} \]
  10. Taylor expanded in k around inf 27.1%

    \[\leadsto 2 \cdot \color{blue}{\left(-0.16666666666666666 \cdot \frac{{\ell}^{2}}{{k}^{2} \cdot t}\right)} \]
  11. Step-by-step derivation
    1. associate-/r*26.4%

      \[\leadsto 2 \cdot \left(-0.16666666666666666 \cdot \color{blue}{\frac{\frac{{\ell}^{2}}{{k}^{2}}}{t}}\right) \]
    2. unpow226.4%

      \[\leadsto 2 \cdot \left(-0.16666666666666666 \cdot \frac{\frac{\color{blue}{\ell \cdot \ell}}{{k}^{2}}}{t}\right) \]
    3. unpow226.4%

      \[\leadsto 2 \cdot \left(-0.16666666666666666 \cdot \frac{\frac{\ell \cdot \ell}{\color{blue}{k \cdot k}}}{t}\right) \]
  12. Simplified26.4%

    \[\leadsto 2 \cdot \color{blue}{\left(-0.16666666666666666 \cdot \frac{\frac{\ell \cdot \ell}{k \cdot k}}{t}\right)} \]
  13. Final simplification26.4%

    \[\leadsto 2 \cdot \left(-0.16666666666666666 \cdot \frac{\frac{\ell \cdot \ell}{k \cdot k}}{t}\right) \]

Alternative 23: 33.3% accurate, 32.4× speedup?

\[\begin{array}{l} \\ 2 \cdot \left(\frac{-0.16666666666666666}{t} \cdot \left(\frac{\ell}{k} \cdot \frac{\ell}{k}\right)\right) \end{array} \]
(FPCore (t l k)
 :precision binary64
 (* 2.0 (* (/ -0.16666666666666666 t) (* (/ l k) (/ l k)))))
double code(double t, double l, double k) {
	return 2.0 * ((-0.16666666666666666 / t) * ((l / k) * (l / k)));
}
real(8) function code(t, l, k)
    real(8), intent (in) :: t
    real(8), intent (in) :: l
    real(8), intent (in) :: k
    code = 2.0d0 * (((-0.16666666666666666d0) / t) * ((l / k) * (l / k)))
end function
public static double code(double t, double l, double k) {
	return 2.0 * ((-0.16666666666666666 / t) * ((l / k) * (l / k)));
}
def code(t, l, k):
	return 2.0 * ((-0.16666666666666666 / t) * ((l / k) * (l / k)))
function code(t, l, k)
	return Float64(2.0 * Float64(Float64(-0.16666666666666666 / t) * Float64(Float64(l / k) * Float64(l / k))))
end
function tmp = code(t, l, k)
	tmp = 2.0 * ((-0.16666666666666666 / t) * ((l / k) * (l / k)));
end
code[t_, l_, k_] := N[(2.0 * N[(N[(-0.16666666666666666 / t), $MachinePrecision] * N[(N[(l / k), $MachinePrecision] * N[(l / k), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
2 \cdot \left(\frac{-0.16666666666666666}{t} \cdot \left(\frac{\ell}{k} \cdot \frac{\ell}{k}\right)\right)
\end{array}
Derivation
  1. Initial program 47.0%

    \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)} \]
  2. Taylor expanded in t around 0 57.0%

    \[\leadsto \frac{2}{\color{blue}{\frac{{k}^{2} \cdot \left(t \cdot {\sin k}^{2}\right)}{{\ell}^{2} \cdot \cos k}}} \]
  3. Step-by-step derivation
    1. associate-*r*57.0%

      \[\leadsto \frac{2}{\frac{\color{blue}{\left({k}^{2} \cdot t\right) \cdot {\sin k}^{2}}}{{\ell}^{2} \cdot \cos k}} \]
    2. times-frac58.5%

      \[\leadsto \frac{2}{\color{blue}{\frac{{k}^{2} \cdot t}{{\ell}^{2}} \cdot \frac{{\sin k}^{2}}{\cos k}}} \]
    3. unpow258.5%

      \[\leadsto \frac{2}{\frac{\color{blue}{\left(k \cdot k\right)} \cdot t}{{\ell}^{2}} \cdot \frac{{\sin k}^{2}}{\cos k}} \]
    4. associate-*l*60.0%

      \[\leadsto \frac{2}{\frac{\color{blue}{k \cdot \left(k \cdot t\right)}}{{\ell}^{2}} \cdot \frac{{\sin k}^{2}}{\cos k}} \]
    5. unpow260.0%

      \[\leadsto \frac{2}{\frac{k \cdot \left(k \cdot t\right)}{\color{blue}{\ell \cdot \ell}} \cdot \frac{{\sin k}^{2}}{\cos k}} \]
  4. Simplified60.0%

    \[\leadsto \frac{2}{\color{blue}{\frac{k \cdot \left(k \cdot t\right)}{\ell \cdot \ell} \cdot \frac{{\sin k}^{2}}{\cos k}}} \]
  5. Step-by-step derivation
    1. associate-*r/60.0%

      \[\leadsto \frac{2}{\color{blue}{\frac{\frac{k \cdot \left(k \cdot t\right)}{\ell \cdot \ell} \cdot {\sin k}^{2}}{\cos k}}} \]
    2. times-frac69.4%

      \[\leadsto \frac{2}{\frac{\color{blue}{\left(\frac{k}{\ell} \cdot \frac{k \cdot t}{\ell}\right)} \cdot {\sin k}^{2}}{\cos k}} \]
  6. Applied egg-rr69.4%

    \[\leadsto \frac{2}{\color{blue}{\frac{\left(\frac{k}{\ell} \cdot \frac{k \cdot t}{\ell}\right) \cdot {\sin k}^{2}}{\cos k}}} \]
  7. Taylor expanded in k around 0 26.9%

    \[\leadsto \color{blue}{2 \cdot \frac{-0.5 \cdot \frac{{\ell}^{2}}{t} - -0.3333333333333333 \cdot \frac{{\ell}^{2}}{t}}{{k}^{2}} + 2 \cdot \frac{{\ell}^{2}}{{k}^{4} \cdot t}} \]
  8. Step-by-step derivation
    1. distribute-lft-out26.9%

      \[\leadsto \color{blue}{2 \cdot \left(\frac{-0.5 \cdot \frac{{\ell}^{2}}{t} - -0.3333333333333333 \cdot \frac{{\ell}^{2}}{t}}{{k}^{2}} + \frac{{\ell}^{2}}{{k}^{4} \cdot t}\right)} \]
    2. distribute-rgt-out--26.9%

      \[\leadsto 2 \cdot \left(\frac{\color{blue}{\frac{{\ell}^{2}}{t} \cdot \left(-0.5 - -0.3333333333333333\right)}}{{k}^{2}} + \frac{{\ell}^{2}}{{k}^{4} \cdot t}\right) \]
    3. unpow226.9%

      \[\leadsto 2 \cdot \left(\frac{\frac{{\ell}^{2}}{t} \cdot \left(-0.5 - -0.3333333333333333\right)}{\color{blue}{k \cdot k}} + \frac{{\ell}^{2}}{{k}^{4} \cdot t}\right) \]
    4. times-frac27.8%

      \[\leadsto 2 \cdot \left(\color{blue}{\frac{\frac{{\ell}^{2}}{t}}{k} \cdot \frac{-0.5 - -0.3333333333333333}{k}} + \frac{{\ell}^{2}}{{k}^{4} \cdot t}\right) \]
    5. associate-/r*27.9%

      \[\leadsto 2 \cdot \left(\color{blue}{\frac{{\ell}^{2}}{t \cdot k}} \cdot \frac{-0.5 - -0.3333333333333333}{k} + \frac{{\ell}^{2}}{{k}^{4} \cdot t}\right) \]
    6. unpow227.9%

      \[\leadsto 2 \cdot \left(\frac{\color{blue}{\ell \cdot \ell}}{t \cdot k} \cdot \frac{-0.5 - -0.3333333333333333}{k} + \frac{{\ell}^{2}}{{k}^{4} \cdot t}\right) \]
    7. times-frac28.0%

      \[\leadsto 2 \cdot \left(\color{blue}{\left(\frac{\ell}{t} \cdot \frac{\ell}{k}\right)} \cdot \frac{-0.5 - -0.3333333333333333}{k} + \frac{{\ell}^{2}}{{k}^{4} \cdot t}\right) \]
    8. metadata-eval28.0%

      \[\leadsto 2 \cdot \left(\left(\frac{\ell}{t} \cdot \frac{\ell}{k}\right) \cdot \frac{\color{blue}{-0.16666666666666666}}{k} + \frac{{\ell}^{2}}{{k}^{4} \cdot t}\right) \]
    9. unpow228.0%

      \[\leadsto 2 \cdot \left(\left(\frac{\ell}{t} \cdot \frac{\ell}{k}\right) \cdot \frac{-0.16666666666666666}{k} + \frac{\color{blue}{\ell \cdot \ell}}{{k}^{4} \cdot t}\right) \]
    10. *-commutative28.0%

      \[\leadsto 2 \cdot \left(\left(\frac{\ell}{t} \cdot \frac{\ell}{k}\right) \cdot \frac{-0.16666666666666666}{k} + \frac{\ell \cdot \ell}{\color{blue}{t \cdot {k}^{4}}}\right) \]
    11. times-frac33.1%

      \[\leadsto 2 \cdot \left(\left(\frac{\ell}{t} \cdot \frac{\ell}{k}\right) \cdot \frac{-0.16666666666666666}{k} + \color{blue}{\frac{\ell}{t} \cdot \frac{\ell}{{k}^{4}}}\right) \]
  9. Simplified33.1%

    \[\leadsto \color{blue}{2 \cdot \left(\left(\frac{\ell}{t} \cdot \frac{\ell}{k}\right) \cdot \frac{-0.16666666666666666}{k} + \frac{\ell}{t} \cdot \frac{\ell}{{k}^{4}}\right)} \]
  10. Taylor expanded in k around inf 27.1%

    \[\leadsto 2 \cdot \color{blue}{\left(-0.16666666666666666 \cdot \frac{{\ell}^{2}}{{k}^{2} \cdot t}\right)} \]
  11. Step-by-step derivation
    1. associate-*r/27.1%

      \[\leadsto 2 \cdot \color{blue}{\frac{-0.16666666666666666 \cdot {\ell}^{2}}{{k}^{2} \cdot t}} \]
    2. *-commutative27.1%

      \[\leadsto 2 \cdot \frac{-0.16666666666666666 \cdot {\ell}^{2}}{\color{blue}{t \cdot {k}^{2}}} \]
    3. times-frac26.4%

      \[\leadsto 2 \cdot \color{blue}{\left(\frac{-0.16666666666666666}{t} \cdot \frac{{\ell}^{2}}{{k}^{2}}\right)} \]
    4. unpow226.4%

      \[\leadsto 2 \cdot \left(\frac{-0.16666666666666666}{t} \cdot \frac{\color{blue}{\ell \cdot \ell}}{{k}^{2}}\right) \]
    5. unpow226.4%

      \[\leadsto 2 \cdot \left(\frac{-0.16666666666666666}{t} \cdot \frac{\ell \cdot \ell}{\color{blue}{k \cdot k}}\right) \]
    6. times-frac28.1%

      \[\leadsto 2 \cdot \left(\frac{-0.16666666666666666}{t} \cdot \color{blue}{\left(\frac{\ell}{k} \cdot \frac{\ell}{k}\right)}\right) \]
  12. Simplified28.1%

    \[\leadsto 2 \cdot \color{blue}{\left(\frac{-0.16666666666666666}{t} \cdot \left(\frac{\ell}{k} \cdot \frac{\ell}{k}\right)\right)} \]
  13. Final simplification28.1%

    \[\leadsto 2 \cdot \left(\frac{-0.16666666666666666}{t} \cdot \left(\frac{\ell}{k} \cdot \frac{\ell}{k}\right)\right) \]

Reproduce

?
herbie shell --seed 2023285 
(FPCore (t l k)
  :name "Toniolo and Linder, Equation (10+)"
  :precision binary64
  (/ 2.0 (* (* (* (/ (pow t 3.0) (* l l)) (sin k)) (tan k)) (+ (+ 1.0 (pow (/ k t) 2.0)) 1.0))))