Toniolo and Linder, Equation (10-)

Percentage Accurate: 34.9% → 96.6%
Time: 22.3s
Alternatives: 14
Speedup: 28.1×

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 14 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: 34.9% 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: 96.6% accurate, 1.3× speedup?

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

\\
2 \cdot \frac{\frac{\cos k}{k} \cdot \ell}{\left(t \cdot {\sin k}^{2}\right) \cdot \frac{k}{\ell}}
\end{array}
Derivation
  1. Initial program 33.8%

    \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
  2. Step-by-step derivation
    1. associate-*l*33.8%

      \[\leadsto \frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)\right)} \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
    2. associate-*l*33.8%

      \[\leadsto \frac{2}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)\right)}} \]
    3. associate-/r*33.8%

      \[\leadsto \color{blue}{\frac{\frac{2}{\frac{{t}^{3}}{\ell \cdot \ell}}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)}} \]
    4. associate-/r/33.8%

      \[\leadsto \frac{\color{blue}{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
    5. *-commutative33.8%

      \[\leadsto \frac{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}{\color{blue}{\left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right) \cdot \left(\sin k \cdot \tan k\right)}} \]
    6. times-frac34.2%

      \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k}} \]
    7. +-commutative34.2%

      \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{\left({\left(\frac{k}{t}\right)}^{2} + 1\right)} - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
    8. associate--l+42.0%

      \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2} + \left(1 - 1\right)}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
    9. metadata-eval42.0%

      \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2} + \color{blue}{0}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
    10. +-rgt-identity42.0%

      \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2}}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
    11. times-frac46.3%

      \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \color{blue}{\left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
  3. Simplified46.3%

    \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
  4. Taylor expanded in t around 0 69.1%

    \[\leadsto \color{blue}{2 \cdot \frac{\cos k \cdot {\ell}^{2}}{{k}^{2} \cdot \left({\sin k}^{2} \cdot t\right)}} \]
  5. Step-by-step derivation
    1. associate-/r*69.5%

      \[\leadsto 2 \cdot \color{blue}{\frac{\frac{\cos k \cdot {\ell}^{2}}{{k}^{2}}}{{\sin k}^{2} \cdot t}} \]
    2. unpow269.5%

      \[\leadsto 2 \cdot \frac{\frac{\cos k \cdot \color{blue}{\left(\ell \cdot \ell\right)}}{{k}^{2}}}{{\sin k}^{2} \cdot t} \]
    3. unpow269.5%

      \[\leadsto 2 \cdot \frac{\frac{\cos k \cdot \left(\ell \cdot \ell\right)}{\color{blue}{k \cdot k}}}{{\sin k}^{2} \cdot t} \]
    4. *-commutative69.5%

      \[\leadsto 2 \cdot \frac{\frac{\cos k \cdot \left(\ell \cdot \ell\right)}{k \cdot k}}{\color{blue}{t \cdot {\sin k}^{2}}} \]
  6. Simplified69.5%

    \[\leadsto \color{blue}{2 \cdot \frac{\frac{\cos k \cdot \left(\ell \cdot \ell\right)}{k \cdot k}}{t \cdot {\sin k}^{2}}} \]
  7. Taylor expanded in k around inf 69.5%

    \[\leadsto 2 \cdot \frac{\color{blue}{\frac{\cos k \cdot {\ell}^{2}}{{k}^{2}}}}{t \cdot {\sin k}^{2}} \]
  8. Step-by-step derivation
    1. unpow269.5%

      \[\leadsto 2 \cdot \frac{\frac{\cos k \cdot {\ell}^{2}}{\color{blue}{k \cdot k}}}{t \cdot {\sin k}^{2}} \]
    2. times-frac71.3%

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

      \[\leadsto 2 \cdot \frac{\frac{\cos k}{k} \cdot \frac{\color{blue}{\ell \cdot \ell}}{k}}{t \cdot {\sin k}^{2}} \]
    4. associate-/l*84.3%

      \[\leadsto 2 \cdot \frac{\frac{\cos k}{k} \cdot \color{blue}{\frac{\ell}{\frac{k}{\ell}}}}{t \cdot {\sin k}^{2}} \]
  9. Simplified84.3%

    \[\leadsto 2 \cdot \frac{\color{blue}{\frac{\cos k}{k} \cdot \frac{\ell}{\frac{k}{\ell}}}}{t \cdot {\sin k}^{2}} \]
  10. Step-by-step derivation
    1. associate-*r/89.9%

      \[\leadsto 2 \cdot \frac{\color{blue}{\frac{\frac{\cos k}{k} \cdot \ell}{\frac{k}{\ell}}}}{t \cdot {\sin k}^{2}} \]
  11. Applied egg-rr89.9%

    \[\leadsto 2 \cdot \frac{\color{blue}{\frac{\frac{\cos k}{k} \cdot \ell}{\frac{k}{\ell}}}}{t \cdot {\sin k}^{2}} \]
  12. Step-by-step derivation
    1. *-un-lft-identity89.9%

      \[\leadsto 2 \cdot \color{blue}{\left(1 \cdot \frac{\frac{\frac{\cos k}{k} \cdot \ell}{\frac{k}{\ell}}}{t \cdot {\sin k}^{2}}\right)} \]
    2. associate-/l/96.2%

      \[\leadsto 2 \cdot \left(1 \cdot \color{blue}{\frac{\frac{\cos k}{k} \cdot \ell}{\left(t \cdot {\sin k}^{2}\right) \cdot \frac{k}{\ell}}}\right) \]
  13. Applied egg-rr96.2%

    \[\leadsto 2 \cdot \color{blue}{\left(1 \cdot \frac{\frac{\cos k}{k} \cdot \ell}{\left(t \cdot {\sin k}^{2}\right) \cdot \frac{k}{\ell}}\right)} \]
  14. Final simplification96.2%

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

Alternative 2: 88.2% accurate, 1.3× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := {\sin k}^{2}\\ t_2 := t \cdot t_1\\ \mathbf{if}\;k \leq 1.6 \cdot 10^{-89}:\\ \;\;\;\;\frac{2}{k \cdot \left(k \cdot t\right)} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)\\ \mathbf{elif}\;k \leq 1.35 \cdot 10^{+85}:\\ \;\;\;\;2 \cdot \left(\frac{\cos k}{k \cdot k} \cdot \left(\frac{\ell}{t} \cdot \frac{\ell}{t_1}\right)\right)\\ \mathbf{elif}\;k \leq 4.6 \cdot 10^{+230}:\\ \;\;\;\;2 \cdot \frac{\frac{\cos k \cdot \ell}{k \cdot \frac{k}{\ell}}}{t_2}\\ \mathbf{else}:\\ \;\;\;\;2 \cdot \frac{\frac{\cos k}{k} \cdot \frac{\ell}{\frac{k}{\ell}}}{t_2}\\ \end{array} \end{array} \]
(FPCore (t l k)
 :precision binary64
 (let* ((t_1 (pow (sin k) 2.0)) (t_2 (* t t_1)))
   (if (<= k 1.6e-89)
     (* (/ 2.0 (* k (* k t))) (* (/ l (sin k)) (/ l (tan k))))
     (if (<= k 1.35e+85)
       (* 2.0 (* (/ (cos k) (* k k)) (* (/ l t) (/ l t_1))))
       (if (<= k 4.6e+230)
         (* 2.0 (/ (/ (* (cos k) l) (* k (/ k l))) t_2))
         (* 2.0 (/ (* (/ (cos k) k) (/ l (/ k l))) t_2)))))))
double code(double t, double l, double k) {
	double t_1 = pow(sin(k), 2.0);
	double t_2 = t * t_1;
	double tmp;
	if (k <= 1.6e-89) {
		tmp = (2.0 / (k * (k * t))) * ((l / sin(k)) * (l / tan(k)));
	} else if (k <= 1.35e+85) {
		tmp = 2.0 * ((cos(k) / (k * k)) * ((l / t) * (l / t_1)));
	} else if (k <= 4.6e+230) {
		tmp = 2.0 * (((cos(k) * l) / (k * (k / l))) / t_2);
	} else {
		tmp = 2.0 * (((cos(k) / k) * (l / (k / l))) / t_2);
	}
	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 = sin(k) ** 2.0d0
    t_2 = t * t_1
    if (k <= 1.6d-89) then
        tmp = (2.0d0 / (k * (k * t))) * ((l / sin(k)) * (l / tan(k)))
    else if (k <= 1.35d+85) then
        tmp = 2.0d0 * ((cos(k) / (k * k)) * ((l / t) * (l / t_1)))
    else if (k <= 4.6d+230) then
        tmp = 2.0d0 * (((cos(k) * l) / (k * (k / l))) / t_2)
    else
        tmp = 2.0d0 * (((cos(k) / k) * (l / (k / l))) / t_2)
    end if
    code = tmp
end function
public static double code(double t, double l, double k) {
	double t_1 = Math.pow(Math.sin(k), 2.0);
	double t_2 = t * t_1;
	double tmp;
	if (k <= 1.6e-89) {
		tmp = (2.0 / (k * (k * t))) * ((l / Math.sin(k)) * (l / Math.tan(k)));
	} else if (k <= 1.35e+85) {
		tmp = 2.0 * ((Math.cos(k) / (k * k)) * ((l / t) * (l / t_1)));
	} else if (k <= 4.6e+230) {
		tmp = 2.0 * (((Math.cos(k) * l) / (k * (k / l))) / t_2);
	} else {
		tmp = 2.0 * (((Math.cos(k) / k) * (l / (k / l))) / t_2);
	}
	return tmp;
}
def code(t, l, k):
	t_1 = math.pow(math.sin(k), 2.0)
	t_2 = t * t_1
	tmp = 0
	if k <= 1.6e-89:
		tmp = (2.0 / (k * (k * t))) * ((l / math.sin(k)) * (l / math.tan(k)))
	elif k <= 1.35e+85:
		tmp = 2.0 * ((math.cos(k) / (k * k)) * ((l / t) * (l / t_1)))
	elif k <= 4.6e+230:
		tmp = 2.0 * (((math.cos(k) * l) / (k * (k / l))) / t_2)
	else:
		tmp = 2.0 * (((math.cos(k) / k) * (l / (k / l))) / t_2)
	return tmp
function code(t, l, k)
	t_1 = sin(k) ^ 2.0
	t_2 = Float64(t * t_1)
	tmp = 0.0
	if (k <= 1.6e-89)
		tmp = Float64(Float64(2.0 / Float64(k * Float64(k * t))) * Float64(Float64(l / sin(k)) * Float64(l / tan(k))));
	elseif (k <= 1.35e+85)
		tmp = Float64(2.0 * Float64(Float64(cos(k) / Float64(k * k)) * Float64(Float64(l / t) * Float64(l / t_1))));
	elseif (k <= 4.6e+230)
		tmp = Float64(2.0 * Float64(Float64(Float64(cos(k) * l) / Float64(k * Float64(k / l))) / t_2));
	else
		tmp = Float64(2.0 * Float64(Float64(Float64(cos(k) / k) * Float64(l / Float64(k / l))) / t_2));
	end
	return tmp
end
function tmp_2 = code(t, l, k)
	t_1 = sin(k) ^ 2.0;
	t_2 = t * t_1;
	tmp = 0.0;
	if (k <= 1.6e-89)
		tmp = (2.0 / (k * (k * t))) * ((l / sin(k)) * (l / tan(k)));
	elseif (k <= 1.35e+85)
		tmp = 2.0 * ((cos(k) / (k * k)) * ((l / t) * (l / t_1)));
	elseif (k <= 4.6e+230)
		tmp = 2.0 * (((cos(k) * l) / (k * (k / l))) / t_2);
	else
		tmp = 2.0 * (((cos(k) / k) * (l / (k / l))) / t_2);
	end
	tmp_2 = tmp;
end
code[t_, l_, k_] := Block[{t$95$1 = N[Power[N[Sin[k], $MachinePrecision], 2.0], $MachinePrecision]}, Block[{t$95$2 = N[(t * t$95$1), $MachinePrecision]}, If[LessEqual[k, 1.6e-89], N[(N[(2.0 / N[(k * N[(k * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] * N[(N[(l / N[Sin[k], $MachinePrecision]), $MachinePrecision] * N[(l / N[Tan[k], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[k, 1.35e+85], N[(2.0 * N[(N[(N[Cos[k], $MachinePrecision] / N[(k * k), $MachinePrecision]), $MachinePrecision] * N[(N[(l / t), $MachinePrecision] * N[(l / t$95$1), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[k, 4.6e+230], N[(2.0 * N[(N[(N[(N[Cos[k], $MachinePrecision] * l), $MachinePrecision] / N[(k * N[(k / l), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / t$95$2), $MachinePrecision]), $MachinePrecision], N[(2.0 * N[(N[(N[(N[Cos[k], $MachinePrecision] / k), $MachinePrecision] * N[(l / N[(k / l), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / t$95$2), $MachinePrecision]), $MachinePrecision]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := {\sin k}^{2}\\
t_2 := t \cdot t_1\\
\mathbf{if}\;k \leq 1.6 \cdot 10^{-89}:\\
\;\;\;\;\frac{2}{k \cdot \left(k \cdot t\right)} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)\\

\mathbf{elif}\;k \leq 1.35 \cdot 10^{+85}:\\
\;\;\;\;2 \cdot \left(\frac{\cos k}{k \cdot k} \cdot \left(\frac{\ell}{t} \cdot \frac{\ell}{t_1}\right)\right)\\

\mathbf{elif}\;k \leq 4.6 \cdot 10^{+230}:\\
\;\;\;\;2 \cdot \frac{\frac{\cos k \cdot \ell}{k \cdot \frac{k}{\ell}}}{t_2}\\

\mathbf{else}:\\
\;\;\;\;2 \cdot \frac{\frac{\cos k}{k} \cdot \frac{\ell}{\frac{k}{\ell}}}{t_2}\\


\end{array}
\end{array}
Derivation
  1. Split input into 4 regimes
  2. if k < 1.59999999999999999e-89

    1. Initial program 34.3%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
    2. Step-by-step derivation
      1. associate-*l*34.2%

        \[\leadsto \frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)\right)} \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      2. associate-*l*34.2%

        \[\leadsto \frac{2}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)\right)}} \]
      3. associate-/r*34.2%

        \[\leadsto \color{blue}{\frac{\frac{2}{\frac{{t}^{3}}{\ell \cdot \ell}}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)}} \]
      4. associate-/r/34.2%

        \[\leadsto \frac{\color{blue}{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      5. *-commutative34.2%

        \[\leadsto \frac{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}{\color{blue}{\left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right) \cdot \left(\sin k \cdot \tan k\right)}} \]
      6. times-frac34.9%

        \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k}} \]
      7. +-commutative34.9%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{\left({\left(\frac{k}{t}\right)}^{2} + 1\right)} - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      8. associate--l+39.3%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2} + \left(1 - 1\right)}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      9. metadata-eval39.3%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2} + \color{blue}{0}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      10. +-rgt-identity39.3%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2}}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      11. times-frac46.3%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \color{blue}{\left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    3. Simplified46.3%

      \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    4. Taylor expanded in t around 0 79.2%

      \[\leadsto \color{blue}{\frac{2}{{k}^{2} \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    5. Step-by-step derivation
      1. unpow279.2%

        \[\leadsto \frac{2}{\color{blue}{\left(k \cdot k\right)} \cdot t} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    6. Simplified79.2%

      \[\leadsto \color{blue}{\frac{2}{\left(k \cdot k\right) \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    7. Taylor expanded in k around 0 79.2%

      \[\leadsto \frac{2}{\color{blue}{{k}^{2} \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    8. Step-by-step derivation
      1. unpow279.2%

        \[\leadsto \frac{2}{\color{blue}{\left(k \cdot k\right)} \cdot t} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
      2. associate-*r*83.0%

        \[\leadsto \frac{2}{\color{blue}{k \cdot \left(k \cdot t\right)}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    9. Simplified83.0%

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

    if 1.59999999999999999e-89 < k < 1.34999999999999992e85

    1. Initial program 23.3%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
    2. Step-by-step derivation
      1. associate-*l*23.4%

        \[\leadsto \frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)\right)} \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      2. associate-*l*23.4%

        \[\leadsto \frac{2}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)\right)}} \]
      3. associate-/r*23.3%

        \[\leadsto \color{blue}{\frac{\frac{2}{\frac{{t}^{3}}{\ell \cdot \ell}}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)}} \]
      4. associate-/r/23.4%

        \[\leadsto \frac{\color{blue}{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      5. *-commutative23.4%

        \[\leadsto \frac{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}{\color{blue}{\left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right) \cdot \left(\sin k \cdot \tan k\right)}} \]
      6. times-frac23.4%

        \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k}} \]
      7. +-commutative23.4%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{\left({\left(\frac{k}{t}\right)}^{2} + 1\right)} - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      8. associate--l+34.8%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2} + \left(1 - 1\right)}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      9. metadata-eval34.8%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2} + \color{blue}{0}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      10. +-rgt-identity34.8%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2}}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      11. times-frac36.8%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \color{blue}{\left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    3. Simplified36.8%

      \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    4. Taylor expanded in t around 0 83.2%

      \[\leadsto \color{blue}{\frac{2}{{k}^{2} \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    5. Step-by-step derivation
      1. unpow283.2%

        \[\leadsto \frac{2}{\color{blue}{\left(k \cdot k\right)} \cdot t} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    6. Simplified83.2%

      \[\leadsto \color{blue}{\frac{2}{\left(k \cdot k\right) \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    7. Taylor expanded in k around inf 79.6%

      \[\leadsto \color{blue}{2 \cdot \frac{\cos k \cdot {\ell}^{2}}{{k}^{2} \cdot \left({\sin k}^{2} \cdot t\right)}} \]
    8. Step-by-step derivation
      1. times-frac82.3%

        \[\leadsto 2 \cdot \color{blue}{\left(\frac{\cos k}{{k}^{2}} \cdot \frac{{\ell}^{2}}{{\sin k}^{2} \cdot t}\right)} \]
      2. unpow282.3%

        \[\leadsto 2 \cdot \left(\frac{\cos k}{\color{blue}{k \cdot k}} \cdot \frac{{\ell}^{2}}{{\sin k}^{2} \cdot t}\right) \]
      3. unpow282.3%

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

        \[\leadsto 2 \cdot \left(\frac{\cos k}{k \cdot k} \cdot \frac{\ell \cdot \ell}{\color{blue}{t \cdot {\sin k}^{2}}}\right) \]
      5. times-frac95.9%

        \[\leadsto 2 \cdot \left(\frac{\cos k}{k \cdot k} \cdot \color{blue}{\left(\frac{\ell}{t} \cdot \frac{\ell}{{\sin k}^{2}}\right)}\right) \]
    9. Simplified95.9%

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

    if 1.34999999999999992e85 < k < 4.5999999999999996e230

    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. Step-by-step derivation
      1. associate-*l*36.1%

        \[\leadsto \frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)\right)} \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      2. associate-*l*36.1%

        \[\leadsto \frac{2}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)\right)}} \]
      3. associate-/r*36.1%

        \[\leadsto \color{blue}{\frac{\frac{2}{\frac{{t}^{3}}{\ell \cdot \ell}}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)}} \]
      4. associate-/r/36.1%

        \[\leadsto \frac{\color{blue}{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      5. *-commutative36.1%

        \[\leadsto \frac{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}{\color{blue}{\left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right) \cdot \left(\sin k \cdot \tan k\right)}} \]
      6. times-frac35.9%

        \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k}} \]
      7. +-commutative35.9%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{\left({\left(\frac{k}{t}\right)}^{2} + 1\right)} - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      8. associate--l+53.8%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2} + \left(1 - 1\right)}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      9. metadata-eval53.8%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2} + \color{blue}{0}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      10. +-rgt-identity53.8%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2}}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      11. times-frac53.8%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \color{blue}{\left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    3. Simplified53.8%

      \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    4. Taylor expanded in t around 0 69.4%

      \[\leadsto \color{blue}{2 \cdot \frac{\cos k \cdot {\ell}^{2}}{{k}^{2} \cdot \left({\sin k}^{2} \cdot t\right)}} \]
    5. Step-by-step derivation
      1. associate-/r*69.7%

        \[\leadsto 2 \cdot \color{blue}{\frac{\frac{\cos k \cdot {\ell}^{2}}{{k}^{2}}}{{\sin k}^{2} \cdot t}} \]
      2. unpow269.7%

        \[\leadsto 2 \cdot \frac{\frac{\cos k \cdot \color{blue}{\left(\ell \cdot \ell\right)}}{{k}^{2}}}{{\sin k}^{2} \cdot t} \]
      3. unpow269.7%

        \[\leadsto 2 \cdot \frac{\frac{\cos k \cdot \left(\ell \cdot \ell\right)}{\color{blue}{k \cdot k}}}{{\sin k}^{2} \cdot t} \]
      4. *-commutative69.7%

        \[\leadsto 2 \cdot \frac{\frac{\cos k \cdot \left(\ell \cdot \ell\right)}{k \cdot k}}{\color{blue}{t \cdot {\sin k}^{2}}} \]
    6. Simplified69.7%

      \[\leadsto \color{blue}{2 \cdot \frac{\frac{\cos k \cdot \left(\ell \cdot \ell\right)}{k \cdot k}}{t \cdot {\sin k}^{2}}} \]
    7. Taylor expanded in k around inf 69.7%

      \[\leadsto 2 \cdot \frac{\color{blue}{\frac{\cos k \cdot {\ell}^{2}}{{k}^{2}}}}{t \cdot {\sin k}^{2}} \]
    8. Step-by-step derivation
      1. unpow269.7%

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

        \[\leadsto 2 \cdot \frac{\color{blue}{\frac{\cos k}{k} \cdot \frac{{\ell}^{2}}{k}}}{t \cdot {\sin k}^{2}} \]
      3. unpow270.4%

        \[\leadsto 2 \cdot \frac{\frac{\cos k}{k} \cdot \frac{\color{blue}{\ell \cdot \ell}}{k}}{t \cdot {\sin k}^{2}} \]
      4. associate-/l*82.7%

        \[\leadsto 2 \cdot \frac{\frac{\cos k}{k} \cdot \color{blue}{\frac{\ell}{\frac{k}{\ell}}}}{t \cdot {\sin k}^{2}} \]
    9. Simplified82.7%

      \[\leadsto 2 \cdot \frac{\color{blue}{\frac{\cos k}{k} \cdot \frac{\ell}{\frac{k}{\ell}}}}{t \cdot {\sin k}^{2}} \]
    10. Step-by-step derivation
      1. frac-times99.7%

        \[\leadsto 2 \cdot \frac{\color{blue}{\frac{\cos k \cdot \ell}{k \cdot \frac{k}{\ell}}}}{t \cdot {\sin k}^{2}} \]
    11. Applied egg-rr99.7%

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

    if 4.5999999999999996e230 < k

    1. Initial program 50.0%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
    2. Step-by-step derivation
      1. associate-*l*50.0%

        \[\leadsto \frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)\right)} \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      2. associate-*l*50.0%

        \[\leadsto \frac{2}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)\right)}} \]
      3. associate-/r*50.0%

        \[\leadsto \color{blue}{\frac{\frac{2}{\frac{{t}^{3}}{\ell \cdot \ell}}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)}} \]
      4. associate-/r/50.0%

        \[\leadsto \frac{\color{blue}{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      5. *-commutative50.0%

        \[\leadsto \frac{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}{\color{blue}{\left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right) \cdot \left(\sin k \cdot \tan k\right)}} \]
      6. times-frac50.0%

        \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k}} \]
      7. +-commutative50.0%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{\left({\left(\frac{k}{t}\right)}^{2} + 1\right)} - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      8. associate--l+54.2%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2} + \left(1 - 1\right)}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      9. metadata-eval54.2%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2} + \color{blue}{0}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      10. +-rgt-identity54.2%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2}}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      11. times-frac54.2%

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

      \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    4. Taylor expanded in t around 0 58.7%

      \[\leadsto \color{blue}{2 \cdot \frac{\cos k \cdot {\ell}^{2}}{{k}^{2} \cdot \left({\sin k}^{2} \cdot t\right)}} \]
    5. Step-by-step derivation
      1. associate-/r*58.7%

        \[\leadsto 2 \cdot \color{blue}{\frac{\frac{\cos k \cdot {\ell}^{2}}{{k}^{2}}}{{\sin k}^{2} \cdot t}} \]
      2. unpow258.7%

        \[\leadsto 2 \cdot \frac{\frac{\cos k \cdot \color{blue}{\left(\ell \cdot \ell\right)}}{{k}^{2}}}{{\sin k}^{2} \cdot t} \]
      3. unpow258.7%

        \[\leadsto 2 \cdot \frac{\frac{\cos k \cdot \left(\ell \cdot \ell\right)}{\color{blue}{k \cdot k}}}{{\sin k}^{2} \cdot t} \]
      4. *-commutative58.7%

        \[\leadsto 2 \cdot \frac{\frac{\cos k \cdot \left(\ell \cdot \ell\right)}{k \cdot k}}{\color{blue}{t \cdot {\sin k}^{2}}} \]
    6. Simplified58.7%

      \[\leadsto \color{blue}{2 \cdot \frac{\frac{\cos k \cdot \left(\ell \cdot \ell\right)}{k \cdot k}}{t \cdot {\sin k}^{2}}} \]
    7. Taylor expanded in k around inf 58.7%

      \[\leadsto 2 \cdot \frac{\color{blue}{\frac{\cos k \cdot {\ell}^{2}}{{k}^{2}}}}{t \cdot {\sin k}^{2}} \]
    8. Step-by-step derivation
      1. unpow258.7%

        \[\leadsto 2 \cdot \frac{\frac{\cos k \cdot {\ell}^{2}}{\color{blue}{k \cdot k}}}{t \cdot {\sin k}^{2}} \]
      2. times-frac63.6%

        \[\leadsto 2 \cdot \frac{\color{blue}{\frac{\cos k}{k} \cdot \frac{{\ell}^{2}}{k}}}{t \cdot {\sin k}^{2}} \]
      3. unpow263.6%

        \[\leadsto 2 \cdot \frac{\frac{\cos k}{k} \cdot \frac{\color{blue}{\ell \cdot \ell}}{k}}{t \cdot {\sin k}^{2}} \]
      4. associate-/l*87.8%

        \[\leadsto 2 \cdot \frac{\frac{\cos k}{k} \cdot \color{blue}{\frac{\ell}{\frac{k}{\ell}}}}{t \cdot {\sin k}^{2}} \]
    9. Simplified87.8%

      \[\leadsto 2 \cdot \frac{\color{blue}{\frac{\cos k}{k} \cdot \frac{\ell}{\frac{k}{\ell}}}}{t \cdot {\sin k}^{2}} \]
  3. Recombined 4 regimes into one program.
  4. Final simplification88.6%

    \[\leadsto \begin{array}{l} \mathbf{if}\;k \leq 1.6 \cdot 10^{-89}:\\ \;\;\;\;\frac{2}{k \cdot \left(k \cdot t\right)} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)\\ \mathbf{elif}\;k \leq 1.35 \cdot 10^{+85}:\\ \;\;\;\;2 \cdot \left(\frac{\cos k}{k \cdot k} \cdot \left(\frac{\ell}{t} \cdot \frac{\ell}{{\sin k}^{2}}\right)\right)\\ \mathbf{elif}\;k \leq 4.6 \cdot 10^{+230}:\\ \;\;\;\;2 \cdot \frac{\frac{\cos k \cdot \ell}{k \cdot \frac{k}{\ell}}}{t \cdot {\sin k}^{2}}\\ \mathbf{else}:\\ \;\;\;\;2 \cdot \frac{\frac{\cos k}{k} \cdot \frac{\ell}{\frac{k}{\ell}}}{t \cdot {\sin k}^{2}}\\ \end{array} \]

Alternative 3: 84.0% accurate, 1.3× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;k \leq 1.6 \cdot 10^{-89}:\\ \;\;\;\;\frac{2}{k \cdot \left(k \cdot t\right)} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)\\ \mathbf{elif}\;k \leq 2.6 \cdot 10^{+143}:\\ \;\;\;\;2 \cdot \left(\frac{\cos k}{k \cdot k} \cdot \left(\frac{\ell}{t} \cdot \frac{\ell}{{\sin k}^{2}}\right)\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{2 \cdot \left(\frac{t}{k} \cdot \frac{t}{k}\right)}{\left(\frac{t}{\ell} \cdot \frac{t}{\frac{\ell}{t}}\right) \cdot \left(\sin k \cdot \tan k\right)}\\ \end{array} \end{array} \]
(FPCore (t l k)
 :precision binary64
 (if (<= k 1.6e-89)
   (* (/ 2.0 (* k (* k t))) (* (/ l (sin k)) (/ l (tan k))))
   (if (<= k 2.6e+143)
     (* 2.0 (* (/ (cos k) (* k k)) (* (/ l t) (/ l (pow (sin k) 2.0)))))
     (/
      (* 2.0 (* (/ t k) (/ t k)))
      (* (* (/ t l) (/ t (/ l t))) (* (sin k) (tan k)))))))
double code(double t, double l, double k) {
	double tmp;
	if (k <= 1.6e-89) {
		tmp = (2.0 / (k * (k * t))) * ((l / sin(k)) * (l / tan(k)));
	} else if (k <= 2.6e+143) {
		tmp = 2.0 * ((cos(k) / (k * k)) * ((l / t) * (l / pow(sin(k), 2.0))));
	} else {
		tmp = (2.0 * ((t / k) * (t / k))) / (((t / l) * (t / (l / t))) * (sin(k) * tan(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 (k <= 1.6d-89) then
        tmp = (2.0d0 / (k * (k * t))) * ((l / sin(k)) * (l / tan(k)))
    else if (k <= 2.6d+143) then
        tmp = 2.0d0 * ((cos(k) / (k * k)) * ((l / t) * (l / (sin(k) ** 2.0d0))))
    else
        tmp = (2.0d0 * ((t / k) * (t / k))) / (((t / l) * (t / (l / t))) * (sin(k) * tan(k)))
    end if
    code = tmp
end function
public static double code(double t, double l, double k) {
	double tmp;
	if (k <= 1.6e-89) {
		tmp = (2.0 / (k * (k * t))) * ((l / Math.sin(k)) * (l / Math.tan(k)));
	} else if (k <= 2.6e+143) {
		tmp = 2.0 * ((Math.cos(k) / (k * k)) * ((l / t) * (l / Math.pow(Math.sin(k), 2.0))));
	} else {
		tmp = (2.0 * ((t / k) * (t / k))) / (((t / l) * (t / (l / t))) * (Math.sin(k) * Math.tan(k)));
	}
	return tmp;
}
def code(t, l, k):
	tmp = 0
	if k <= 1.6e-89:
		tmp = (2.0 / (k * (k * t))) * ((l / math.sin(k)) * (l / math.tan(k)))
	elif k <= 2.6e+143:
		tmp = 2.0 * ((math.cos(k) / (k * k)) * ((l / t) * (l / math.pow(math.sin(k), 2.0))))
	else:
		tmp = (2.0 * ((t / k) * (t / k))) / (((t / l) * (t / (l / t))) * (math.sin(k) * math.tan(k)))
	return tmp
function code(t, l, k)
	tmp = 0.0
	if (k <= 1.6e-89)
		tmp = Float64(Float64(2.0 / Float64(k * Float64(k * t))) * Float64(Float64(l / sin(k)) * Float64(l / tan(k))));
	elseif (k <= 2.6e+143)
		tmp = Float64(2.0 * Float64(Float64(cos(k) / Float64(k * k)) * Float64(Float64(l / t) * Float64(l / (sin(k) ^ 2.0)))));
	else
		tmp = Float64(Float64(2.0 * Float64(Float64(t / k) * Float64(t / k))) / Float64(Float64(Float64(t / l) * Float64(t / Float64(l / t))) * Float64(sin(k) * tan(k))));
	end
	return tmp
end
function tmp_2 = code(t, l, k)
	tmp = 0.0;
	if (k <= 1.6e-89)
		tmp = (2.0 / (k * (k * t))) * ((l / sin(k)) * (l / tan(k)));
	elseif (k <= 2.6e+143)
		tmp = 2.0 * ((cos(k) / (k * k)) * ((l / t) * (l / (sin(k) ^ 2.0))));
	else
		tmp = (2.0 * ((t / k) * (t / k))) / (((t / l) * (t / (l / t))) * (sin(k) * tan(k)));
	end
	tmp_2 = tmp;
end
code[t_, l_, k_] := If[LessEqual[k, 1.6e-89], N[(N[(2.0 / N[(k * N[(k * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] * N[(N[(l / N[Sin[k], $MachinePrecision]), $MachinePrecision] * N[(l / N[Tan[k], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[k, 2.6e+143], N[(2.0 * N[(N[(N[Cos[k], $MachinePrecision] / N[(k * k), $MachinePrecision]), $MachinePrecision] * N[(N[(l / t), $MachinePrecision] * N[(l / N[Power[N[Sin[k], $MachinePrecision], 2.0], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(2.0 * N[(N[(t / k), $MachinePrecision] * N[(t / k), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(N[(N[(t / l), $MachinePrecision] * N[(t / N[(l / t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] * N[(N[Sin[k], $MachinePrecision] * N[Tan[k], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;k \leq 1.6 \cdot 10^{-89}:\\
\;\;\;\;\frac{2}{k \cdot \left(k \cdot t\right)} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)\\

\mathbf{elif}\;k \leq 2.6 \cdot 10^{+143}:\\
\;\;\;\;2 \cdot \left(\frac{\cos k}{k \cdot k} \cdot \left(\frac{\ell}{t} \cdot \frac{\ell}{{\sin k}^{2}}\right)\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if k < 1.59999999999999999e-89

    1. Initial program 34.3%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
    2. Step-by-step derivation
      1. associate-*l*34.2%

        \[\leadsto \frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)\right)} \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      2. associate-*l*34.2%

        \[\leadsto \frac{2}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)\right)}} \]
      3. associate-/r*34.2%

        \[\leadsto \color{blue}{\frac{\frac{2}{\frac{{t}^{3}}{\ell \cdot \ell}}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)}} \]
      4. associate-/r/34.2%

        \[\leadsto \frac{\color{blue}{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      5. *-commutative34.2%

        \[\leadsto \frac{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}{\color{blue}{\left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right) \cdot \left(\sin k \cdot \tan k\right)}} \]
      6. times-frac34.9%

        \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k}} \]
      7. +-commutative34.9%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{\left({\left(\frac{k}{t}\right)}^{2} + 1\right)} - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      8. associate--l+39.3%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2} + \left(1 - 1\right)}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      9. metadata-eval39.3%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2} + \color{blue}{0}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      10. +-rgt-identity39.3%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2}}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      11. times-frac46.3%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \color{blue}{\left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    3. Simplified46.3%

      \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    4. Taylor expanded in t around 0 79.2%

      \[\leadsto \color{blue}{\frac{2}{{k}^{2} \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    5. Step-by-step derivation
      1. unpow279.2%

        \[\leadsto \frac{2}{\color{blue}{\left(k \cdot k\right)} \cdot t} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    6. Simplified79.2%

      \[\leadsto \color{blue}{\frac{2}{\left(k \cdot k\right) \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    7. Taylor expanded in k around 0 79.2%

      \[\leadsto \frac{2}{\color{blue}{{k}^{2} \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    8. Step-by-step derivation
      1. unpow279.2%

        \[\leadsto \frac{2}{\color{blue}{\left(k \cdot k\right)} \cdot t} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
      2. associate-*r*83.0%

        \[\leadsto \frac{2}{\color{blue}{k \cdot \left(k \cdot t\right)}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    9. Simplified83.0%

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

    if 1.59999999999999999e-89 < k < 2.5999999999999999e143

    1. Initial program 24.9%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
    2. Step-by-step derivation
      1. associate-*l*24.9%

        \[\leadsto \frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)\right)} \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      2. associate-*l*24.9%

        \[\leadsto \frac{2}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)\right)}} \]
      3. associate-/r*24.9%

        \[\leadsto \color{blue}{\frac{\frac{2}{\frac{{t}^{3}}{\ell \cdot \ell}}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)}} \]
      4. associate-/r/24.9%

        \[\leadsto \frac{\color{blue}{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      5. *-commutative24.9%

        \[\leadsto \frac{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}{\color{blue}{\left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right) \cdot \left(\sin k \cdot \tan k\right)}} \]
      6. times-frac24.9%

        \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k}} \]
      7. +-commutative24.9%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{\left({\left(\frac{k}{t}\right)}^{2} + 1\right)} - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      8. associate--l+38.6%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2} + \left(1 - 1\right)}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      9. metadata-eval38.6%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2} + \color{blue}{0}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      10. +-rgt-identity38.6%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2}}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      11. times-frac40.2%

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

      \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    4. Taylor expanded in t around 0 82.1%

      \[\leadsto \color{blue}{\frac{2}{{k}^{2} \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    5. Step-by-step derivation
      1. unpow282.1%

        \[\leadsto \frac{2}{\color{blue}{\left(k \cdot k\right)} \cdot t} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    6. Simplified82.1%

      \[\leadsto \color{blue}{\frac{2}{\left(k \cdot k\right) \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    7. Taylor expanded in k around inf 79.2%

      \[\leadsto \color{blue}{2 \cdot \frac{\cos k \cdot {\ell}^{2}}{{k}^{2} \cdot \left({\sin k}^{2} \cdot t\right)}} \]
    8. Step-by-step derivation
      1. times-frac81.4%

        \[\leadsto 2 \cdot \color{blue}{\left(\frac{\cos k}{{k}^{2}} \cdot \frac{{\ell}^{2}}{{\sin k}^{2} \cdot t}\right)} \]
      2. unpow281.4%

        \[\leadsto 2 \cdot \left(\frac{\cos k}{\color{blue}{k \cdot k}} \cdot \frac{{\ell}^{2}}{{\sin k}^{2} \cdot t}\right) \]
      3. unpow281.4%

        \[\leadsto 2 \cdot \left(\frac{\cos k}{k \cdot k} \cdot \frac{\color{blue}{\ell \cdot \ell}}{{\sin k}^{2} \cdot t}\right) \]
      4. *-commutative81.4%

        \[\leadsto 2 \cdot \left(\frac{\cos k}{k \cdot k} \cdot \frac{\ell \cdot \ell}{\color{blue}{t \cdot {\sin k}^{2}}}\right) \]
      5. times-frac93.8%

        \[\leadsto 2 \cdot \left(\frac{\cos k}{k \cdot k} \cdot \color{blue}{\left(\frac{\ell}{t} \cdot \frac{\ell}{{\sin k}^{2}}\right)}\right) \]
    9. Simplified93.8%

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

    if 2.5999999999999999e143 < k

    1. Initial program 44.0%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
    2. Step-by-step derivation
      1. associate-/l/44.0%

        \[\leadsto \color{blue}{\frac{\frac{2}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1}}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k}} \]
      2. associate-*l*44.0%

        \[\leadsto \frac{\frac{2}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1}}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)}} \]
      3. +-commutative44.0%

        \[\leadsto \frac{\frac{2}{\color{blue}{\left({\left(\frac{k}{t}\right)}^{2} + 1\right)} - 1}}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)} \]
      4. associate--l+54.0%

        \[\leadsto \frac{\frac{2}{\color{blue}{{\left(\frac{k}{t}\right)}^{2} + \left(1 - 1\right)}}}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)} \]
      5. metadata-eval54.0%

        \[\leadsto \frac{\frac{2}{{\left(\frac{k}{t}\right)}^{2} + \color{blue}{0}}}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)} \]
    3. Simplified54.0%

      \[\leadsto \color{blue}{\frac{\frac{2}{{\left(\frac{k}{t}\right)}^{2} + 0}}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)}} \]
    4. Step-by-step derivation
      1. unpow354.0%

        \[\leadsto \frac{\frac{2}{{\left(\frac{k}{t}\right)}^{2} + 0}}{\frac{\color{blue}{\left(t \cdot t\right) \cdot t}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)} \]
      2. times-frac66.5%

        \[\leadsto \frac{\frac{2}{{\left(\frac{k}{t}\right)}^{2} + 0}}{\color{blue}{\left(\frac{t \cdot t}{\ell} \cdot \frac{t}{\ell}\right)} \cdot \left(\sin k \cdot \tan k\right)} \]
    5. Applied egg-rr66.5%

      \[\leadsto \frac{\frac{2}{{\left(\frac{k}{t}\right)}^{2} + 0}}{\color{blue}{\left(\frac{t \cdot t}{\ell} \cdot \frac{t}{\ell}\right)} \cdot \left(\sin k \cdot \tan k\right)} \]
    6. Taylor expanded in k around 0 30.3%

      \[\leadsto \frac{\color{blue}{2 \cdot \frac{{t}^{2}}{{k}^{2}}}}{\left(\frac{t \cdot t}{\ell} \cdot \frac{t}{\ell}\right) \cdot \left(\sin k \cdot \tan k\right)} \]
    7. Step-by-step derivation
      1. unpow230.3%

        \[\leadsto \frac{2 \cdot \frac{\color{blue}{t \cdot t}}{{k}^{2}}}{\left(\frac{t \cdot t}{\ell} \cdot \frac{t}{\ell}\right) \cdot \left(\sin k \cdot \tan k\right)} \]
      2. unpow230.3%

        \[\leadsto \frac{2 \cdot \frac{t \cdot t}{\color{blue}{k \cdot k}}}{\left(\frac{t \cdot t}{\ell} \cdot \frac{t}{\ell}\right) \cdot \left(\sin k \cdot \tan k\right)} \]
    8. Simplified30.3%

      \[\leadsto \frac{\color{blue}{2 \cdot \frac{t \cdot t}{k \cdot k}}}{\left(\frac{t \cdot t}{\ell} \cdot \frac{t}{\ell}\right) \cdot \left(\sin k \cdot \tan k\right)} \]
    9. Taylor expanded in t around 0 30.3%

      \[\leadsto \frac{2 \cdot \color{blue}{\frac{{t}^{2}}{{k}^{2}}}}{\left(\frac{t \cdot t}{\ell} \cdot \frac{t}{\ell}\right) \cdot \left(\sin k \cdot \tan k\right)} \]
    10. Step-by-step derivation
      1. unpow230.3%

        \[\leadsto \frac{2 \cdot \frac{\color{blue}{t \cdot t}}{{k}^{2}}}{\left(\frac{t \cdot t}{\ell} \cdot \frac{t}{\ell}\right) \cdot \left(\sin k \cdot \tan k\right)} \]
      2. unpow230.3%

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

        \[\leadsto \frac{2 \cdot \color{blue}{\left(\frac{t}{k} \cdot \frac{t}{k}\right)}}{\left(\frac{t \cdot t}{\ell} \cdot \frac{t}{\ell}\right) \cdot \left(\sin k \cdot \tan k\right)} \]
    11. Simplified66.5%

      \[\leadsto \frac{2 \cdot \color{blue}{\left(\frac{t}{k} \cdot \frac{t}{k}\right)}}{\left(\frac{t \cdot t}{\ell} \cdot \frac{t}{\ell}\right) \cdot \left(\sin k \cdot \tan k\right)} \]
    12. Taylor expanded in t around 0 66.5%

      \[\leadsto \frac{2 \cdot \left(\frac{t}{k} \cdot \frac{t}{k}\right)}{\left(\color{blue}{\frac{{t}^{2}}{\ell}} \cdot \frac{t}{\ell}\right) \cdot \left(\sin k \cdot \tan k\right)} \]
    13. Step-by-step derivation
      1. unpow266.5%

        \[\leadsto \frac{2 \cdot \left(\frac{t}{k} \cdot \frac{t}{k}\right)}{\left(\frac{\color{blue}{t \cdot t}}{\ell} \cdot \frac{t}{\ell}\right) \cdot \left(\sin k \cdot \tan k\right)} \]
      2. associate-/l*79.9%

        \[\leadsto \frac{2 \cdot \left(\frac{t}{k} \cdot \frac{t}{k}\right)}{\left(\color{blue}{\frac{t}{\frac{\ell}{t}}} \cdot \frac{t}{\ell}\right) \cdot \left(\sin k \cdot \tan k\right)} \]
    14. Simplified79.9%

      \[\leadsto \frac{2 \cdot \left(\frac{t}{k} \cdot \frac{t}{k}\right)}{\left(\color{blue}{\frac{t}{\frac{\ell}{t}}} \cdot \frac{t}{\ell}\right) \cdot \left(\sin k \cdot \tan k\right)} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification85.1%

    \[\leadsto \begin{array}{l} \mathbf{if}\;k \leq 1.6 \cdot 10^{-89}:\\ \;\;\;\;\frac{2}{k \cdot \left(k \cdot t\right)} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)\\ \mathbf{elif}\;k \leq 2.6 \cdot 10^{+143}:\\ \;\;\;\;2 \cdot \left(\frac{\cos k}{k \cdot k} \cdot \left(\frac{\ell}{t} \cdot \frac{\ell}{{\sin k}^{2}}\right)\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{2 \cdot \left(\frac{t}{k} \cdot \frac{t}{k}\right)}{\left(\frac{t}{\ell} \cdot \frac{t}{\frac{\ell}{t}}\right) \cdot \left(\sin k \cdot \tan k\right)}\\ \end{array} \]

Alternative 4: 87.9% accurate, 1.3× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := {\sin k}^{2}\\ \mathbf{if}\;k \leq 1.55 \cdot 10^{-89}:\\ \;\;\;\;\frac{2}{k \cdot \left(k \cdot t\right)} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)\\ \mathbf{elif}\;k \leq 4.6 \cdot 10^{+139}:\\ \;\;\;\;2 \cdot \left(\frac{\cos k}{k \cdot k} \cdot \left(\frac{\ell}{t} \cdot \frac{\ell}{t_1}\right)\right)\\ \mathbf{else}:\\ \;\;\;\;2 \cdot \left(\frac{\cos k}{k \cdot t} \cdot \frac{\ell \cdot \frac{\ell}{k}}{t_1}\right)\\ \end{array} \end{array} \]
(FPCore (t l k)
 :precision binary64
 (let* ((t_1 (pow (sin k) 2.0)))
   (if (<= k 1.55e-89)
     (* (/ 2.0 (* k (* k t))) (* (/ l (sin k)) (/ l (tan k))))
     (if (<= k 4.6e+139)
       (* 2.0 (* (/ (cos k) (* k k)) (* (/ l t) (/ l t_1))))
       (* 2.0 (* (/ (cos k) (* k t)) (/ (* l (/ l k)) t_1)))))))
double code(double t, double l, double k) {
	double t_1 = pow(sin(k), 2.0);
	double tmp;
	if (k <= 1.55e-89) {
		tmp = (2.0 / (k * (k * t))) * ((l / sin(k)) * (l / tan(k)));
	} else if (k <= 4.6e+139) {
		tmp = 2.0 * ((cos(k) / (k * k)) * ((l / t) * (l / t_1)));
	} else {
		tmp = 2.0 * ((cos(k) / (k * t)) * ((l * (l / k)) / 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) :: tmp
    t_1 = sin(k) ** 2.0d0
    if (k <= 1.55d-89) then
        tmp = (2.0d0 / (k * (k * t))) * ((l / sin(k)) * (l / tan(k)))
    else if (k <= 4.6d+139) then
        tmp = 2.0d0 * ((cos(k) / (k * k)) * ((l / t) * (l / t_1)))
    else
        tmp = 2.0d0 * ((cos(k) / (k * t)) * ((l * (l / k)) / t_1))
    end if
    code = tmp
end function
public static double code(double t, double l, double k) {
	double t_1 = Math.pow(Math.sin(k), 2.0);
	double tmp;
	if (k <= 1.55e-89) {
		tmp = (2.0 / (k * (k * t))) * ((l / Math.sin(k)) * (l / Math.tan(k)));
	} else if (k <= 4.6e+139) {
		tmp = 2.0 * ((Math.cos(k) / (k * k)) * ((l / t) * (l / t_1)));
	} else {
		tmp = 2.0 * ((Math.cos(k) / (k * t)) * ((l * (l / k)) / t_1));
	}
	return tmp;
}
def code(t, l, k):
	t_1 = math.pow(math.sin(k), 2.0)
	tmp = 0
	if k <= 1.55e-89:
		tmp = (2.0 / (k * (k * t))) * ((l / math.sin(k)) * (l / math.tan(k)))
	elif k <= 4.6e+139:
		tmp = 2.0 * ((math.cos(k) / (k * k)) * ((l / t) * (l / t_1)))
	else:
		tmp = 2.0 * ((math.cos(k) / (k * t)) * ((l * (l / k)) / t_1))
	return tmp
function code(t, l, k)
	t_1 = sin(k) ^ 2.0
	tmp = 0.0
	if (k <= 1.55e-89)
		tmp = Float64(Float64(2.0 / Float64(k * Float64(k * t))) * Float64(Float64(l / sin(k)) * Float64(l / tan(k))));
	elseif (k <= 4.6e+139)
		tmp = Float64(2.0 * Float64(Float64(cos(k) / Float64(k * k)) * Float64(Float64(l / t) * Float64(l / t_1))));
	else
		tmp = Float64(2.0 * Float64(Float64(cos(k) / Float64(k * t)) * Float64(Float64(l * Float64(l / k)) / t_1)));
	end
	return tmp
end
function tmp_2 = code(t, l, k)
	t_1 = sin(k) ^ 2.0;
	tmp = 0.0;
	if (k <= 1.55e-89)
		tmp = (2.0 / (k * (k * t))) * ((l / sin(k)) * (l / tan(k)));
	elseif (k <= 4.6e+139)
		tmp = 2.0 * ((cos(k) / (k * k)) * ((l / t) * (l / t_1)));
	else
		tmp = 2.0 * ((cos(k) / (k * t)) * ((l * (l / k)) / t_1));
	end
	tmp_2 = tmp;
end
code[t_, l_, k_] := Block[{t$95$1 = N[Power[N[Sin[k], $MachinePrecision], 2.0], $MachinePrecision]}, If[LessEqual[k, 1.55e-89], N[(N[(2.0 / N[(k * N[(k * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] * N[(N[(l / N[Sin[k], $MachinePrecision]), $MachinePrecision] * N[(l / N[Tan[k], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[k, 4.6e+139], N[(2.0 * N[(N[(N[Cos[k], $MachinePrecision] / N[(k * k), $MachinePrecision]), $MachinePrecision] * N[(N[(l / t), $MachinePrecision] * N[(l / t$95$1), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(2.0 * N[(N[(N[Cos[k], $MachinePrecision] / N[(k * t), $MachinePrecision]), $MachinePrecision] * N[(N[(l * N[(l / k), $MachinePrecision]), $MachinePrecision] / t$95$1), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := {\sin k}^{2}\\
\mathbf{if}\;k \leq 1.55 \cdot 10^{-89}:\\
\;\;\;\;\frac{2}{k \cdot \left(k \cdot t\right)} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)\\

\mathbf{elif}\;k \leq 4.6 \cdot 10^{+139}:\\
\;\;\;\;2 \cdot \left(\frac{\cos k}{k \cdot k} \cdot \left(\frac{\ell}{t} \cdot \frac{\ell}{t_1}\right)\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if k < 1.54999999999999998e-89

    1. Initial program 34.3%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
    2. Step-by-step derivation
      1. associate-*l*34.2%

        \[\leadsto \frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)\right)} \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      2. associate-*l*34.2%

        \[\leadsto \frac{2}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)\right)}} \]
      3. associate-/r*34.2%

        \[\leadsto \color{blue}{\frac{\frac{2}{\frac{{t}^{3}}{\ell \cdot \ell}}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)}} \]
      4. associate-/r/34.2%

        \[\leadsto \frac{\color{blue}{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      5. *-commutative34.2%

        \[\leadsto \frac{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}{\color{blue}{\left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right) \cdot \left(\sin k \cdot \tan k\right)}} \]
      6. times-frac34.9%

        \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k}} \]
      7. +-commutative34.9%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{\left({\left(\frac{k}{t}\right)}^{2} + 1\right)} - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      8. associate--l+39.3%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2} + \left(1 - 1\right)}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      9. metadata-eval39.3%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2} + \color{blue}{0}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      10. +-rgt-identity39.3%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2}}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      11. times-frac46.3%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \color{blue}{\left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    3. Simplified46.3%

      \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    4. Taylor expanded in t around 0 79.2%

      \[\leadsto \color{blue}{\frac{2}{{k}^{2} \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    5. Step-by-step derivation
      1. unpow279.2%

        \[\leadsto \frac{2}{\color{blue}{\left(k \cdot k\right)} \cdot t} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    6. Simplified79.2%

      \[\leadsto \color{blue}{\frac{2}{\left(k \cdot k\right) \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    7. Taylor expanded in k around 0 79.2%

      \[\leadsto \frac{2}{\color{blue}{{k}^{2} \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    8. Step-by-step derivation
      1. unpow279.2%

        \[\leadsto \frac{2}{\color{blue}{\left(k \cdot k\right)} \cdot t} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
      2. associate-*r*83.0%

        \[\leadsto \frac{2}{\color{blue}{k \cdot \left(k \cdot t\right)}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    9. Simplified83.0%

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

    if 1.54999999999999998e-89 < k < 4.6e139

    1. Initial program 25.2%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
    2. Step-by-step derivation
      1. associate-*l*25.2%

        \[\leadsto \frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)\right)} \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      2. associate-*l*25.2%

        \[\leadsto \frac{2}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)\right)}} \]
      3. associate-/r*25.2%

        \[\leadsto \color{blue}{\frac{\frac{2}{\frac{{t}^{3}}{\ell \cdot \ell}}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)}} \]
      4. associate-/r/25.2%

        \[\leadsto \frac{\color{blue}{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      5. *-commutative25.2%

        \[\leadsto \frac{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}{\color{blue}{\left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right) \cdot \left(\sin k \cdot \tan k\right)}} \]
      6. times-frac25.3%

        \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k}} \]
      7. +-commutative25.3%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{\left({\left(\frac{k}{t}\right)}^{2} + 1\right)} - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      8. associate--l+39.2%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2} + \left(1 - 1\right)}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      9. metadata-eval39.2%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2} + \color{blue}{0}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      10. +-rgt-identity39.2%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2}}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      11. times-frac40.8%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \color{blue}{\left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    3. Simplified40.8%

      \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    4. Taylor expanded in t around 0 83.3%

      \[\leadsto \color{blue}{\frac{2}{{k}^{2} \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    5. Step-by-step derivation
      1. unpow283.3%

        \[\leadsto \frac{2}{\color{blue}{\left(k \cdot k\right)} \cdot t} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    6. Simplified83.3%

      \[\leadsto \color{blue}{\frac{2}{\left(k \cdot k\right) \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    7. Taylor expanded in k around inf 80.4%

      \[\leadsto \color{blue}{2 \cdot \frac{\cos k \cdot {\ell}^{2}}{{k}^{2} \cdot \left({\sin k}^{2} \cdot t\right)}} \]
    8. Step-by-step derivation
      1. times-frac82.6%

        \[\leadsto 2 \cdot \color{blue}{\left(\frac{\cos k}{{k}^{2}} \cdot \frac{{\ell}^{2}}{{\sin k}^{2} \cdot t}\right)} \]
      2. unpow282.6%

        \[\leadsto 2 \cdot \left(\frac{\cos k}{\color{blue}{k \cdot k}} \cdot \frac{{\ell}^{2}}{{\sin k}^{2} \cdot t}\right) \]
      3. unpow282.6%

        \[\leadsto 2 \cdot \left(\frac{\cos k}{k \cdot k} \cdot \frac{\color{blue}{\ell \cdot \ell}}{{\sin k}^{2} \cdot t}\right) \]
      4. *-commutative82.6%

        \[\leadsto 2 \cdot \left(\frac{\cos k}{k \cdot k} \cdot \frac{\ell \cdot \ell}{\color{blue}{t \cdot {\sin k}^{2}}}\right) \]
      5. times-frac95.2%

        \[\leadsto 2 \cdot \left(\frac{\cos k}{k \cdot k} \cdot \color{blue}{\left(\frac{\ell}{t} \cdot \frac{\ell}{{\sin k}^{2}}\right)}\right) \]
    9. Simplified95.2%

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

    if 4.6e139 < k

    1. Initial program 43.3%

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

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

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

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

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

        \[\leadsto \frac{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}{\color{blue}{\left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right) \cdot \left(\sin k \cdot \tan k\right)}} \]
      6. times-frac43.1%

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

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{\left({\left(\frac{k}{t}\right)}^{2} + 1\right)} - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      8. associate--l+52.9%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2} + \left(1 - 1\right)}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      9. metadata-eval52.9%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2} + \color{blue}{0}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      10. +-rgt-identity52.9%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2}}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      11. times-frac52.9%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \color{blue}{\left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    3. Simplified52.9%

      \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    4. Taylor expanded in t around 0 61.0%

      \[\leadsto \color{blue}{2 \cdot \frac{\cos k \cdot {\ell}^{2}}{{k}^{2} \cdot \left({\sin k}^{2} \cdot t\right)}} \]
    5. Step-by-step derivation
      1. associate-/r*61.1%

        \[\leadsto 2 \cdot \color{blue}{\frac{\frac{\cos k \cdot {\ell}^{2}}{{k}^{2}}}{{\sin k}^{2} \cdot t}} \]
      2. unpow261.1%

        \[\leadsto 2 \cdot \frac{\frac{\cos k \cdot \color{blue}{\left(\ell \cdot \ell\right)}}{{k}^{2}}}{{\sin k}^{2} \cdot t} \]
      3. unpow261.1%

        \[\leadsto 2 \cdot \frac{\frac{\cos k \cdot \left(\ell \cdot \ell\right)}{\color{blue}{k \cdot k}}}{{\sin k}^{2} \cdot t} \]
      4. *-commutative61.1%

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

      \[\leadsto \color{blue}{2 \cdot \frac{\frac{\cos k \cdot \left(\ell \cdot \ell\right)}{k \cdot k}}{t \cdot {\sin k}^{2}}} \]
    7. Taylor expanded in k around inf 61.1%

      \[\leadsto 2 \cdot \frac{\color{blue}{\frac{\cos k \cdot {\ell}^{2}}{{k}^{2}}}}{t \cdot {\sin k}^{2}} \]
    8. Step-by-step derivation
      1. unpow261.1%

        \[\leadsto 2 \cdot \frac{\frac{\cos k \cdot {\ell}^{2}}{\color{blue}{k \cdot k}}}{t \cdot {\sin k}^{2}} \]
      2. times-frac63.9%

        \[\leadsto 2 \cdot \frac{\color{blue}{\frac{\cos k}{k} \cdot \frac{{\ell}^{2}}{k}}}{t \cdot {\sin k}^{2}} \]
      3. unpow263.9%

        \[\leadsto 2 \cdot \frac{\frac{\cos k}{k} \cdot \frac{\color{blue}{\ell \cdot \ell}}{k}}{t \cdot {\sin k}^{2}} \]
      4. associate-/l*82.8%

        \[\leadsto 2 \cdot \frac{\frac{\cos k}{k} \cdot \color{blue}{\frac{\ell}{\frac{k}{\ell}}}}{t \cdot {\sin k}^{2}} \]
    9. Simplified82.8%

      \[\leadsto 2 \cdot \frac{\color{blue}{\frac{\cos k}{k} \cdot \frac{\ell}{\frac{k}{\ell}}}}{t \cdot {\sin k}^{2}} \]
    10. Taylor expanded in k around inf 61.0%

      \[\leadsto 2 \cdot \color{blue}{\frac{\cos k \cdot {\ell}^{2}}{{k}^{2} \cdot \left({\sin k}^{2} \cdot t\right)}} \]
    11. Step-by-step derivation
      1. associate-/r*61.1%

        \[\leadsto 2 \cdot \color{blue}{\frac{\frac{\cos k \cdot {\ell}^{2}}{{k}^{2}}}{{\sin k}^{2} \cdot t}} \]
      2. *-commutative61.1%

        \[\leadsto 2 \cdot \frac{\frac{\color{blue}{{\ell}^{2} \cdot \cos k}}{{k}^{2}}}{{\sin k}^{2} \cdot t} \]
      3. unpow261.1%

        \[\leadsto 2 \cdot \frac{\frac{{\ell}^{2} \cdot \cos k}{\color{blue}{k \cdot k}}}{{\sin k}^{2} \cdot t} \]
      4. times-frac63.9%

        \[\leadsto 2 \cdot \frac{\color{blue}{\frac{{\ell}^{2}}{k} \cdot \frac{\cos k}{k}}}{{\sin k}^{2} \cdot t} \]
      5. unpow263.9%

        \[\leadsto 2 \cdot \frac{\frac{\color{blue}{\ell \cdot \ell}}{k} \cdot \frac{\cos k}{k}}{{\sin k}^{2} \cdot t} \]
      6. associate-*l/82.8%

        \[\leadsto 2 \cdot \frac{\color{blue}{\left(\frac{\ell}{k} \cdot \ell\right)} \cdot \frac{\cos k}{k}}{{\sin k}^{2} \cdot t} \]
      7. times-frac75.4%

        \[\leadsto 2 \cdot \color{blue}{\left(\frac{\frac{\ell}{k} \cdot \ell}{{\sin k}^{2}} \cdot \frac{\frac{\cos k}{k}}{t}\right)} \]
      8. *-commutative75.4%

        \[\leadsto 2 \cdot \color{blue}{\left(\frac{\frac{\cos k}{k}}{t} \cdot \frac{\frac{\ell}{k} \cdot \ell}{{\sin k}^{2}}\right)} \]
      9. associate-/r*75.4%

        \[\leadsto 2 \cdot \left(\color{blue}{\frac{\cos k}{k \cdot t}} \cdot \frac{\frac{\ell}{k} \cdot \ell}{{\sin k}^{2}}\right) \]
      10. *-commutative75.4%

        \[\leadsto 2 \cdot \left(\frac{\cos k}{k \cdot t} \cdot \frac{\color{blue}{\ell \cdot \frac{\ell}{k}}}{{\sin k}^{2}}\right) \]
    12. Simplified75.4%

      \[\leadsto 2 \cdot \color{blue}{\left(\frac{\cos k}{k \cdot t} \cdot \frac{\ell \cdot \frac{\ell}{k}}{{\sin k}^{2}}\right)} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification84.5%

    \[\leadsto \begin{array}{l} \mathbf{if}\;k \leq 1.55 \cdot 10^{-89}:\\ \;\;\;\;\frac{2}{k \cdot \left(k \cdot t\right)} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)\\ \mathbf{elif}\;k \leq 4.6 \cdot 10^{+139}:\\ \;\;\;\;2 \cdot \left(\frac{\cos k}{k \cdot k} \cdot \left(\frac{\ell}{t} \cdot \frac{\ell}{{\sin k}^{2}}\right)\right)\\ \mathbf{else}:\\ \;\;\;\;2 \cdot \left(\frac{\cos k}{k \cdot t} \cdot \frac{\ell \cdot \frac{\ell}{k}}{{\sin k}^{2}}\right)\\ \end{array} \]

Alternative 5: 87.8% accurate, 1.3× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := {\sin k}^{2}\\ \mathbf{if}\;k \leq 1.6 \cdot 10^{-89}:\\ \;\;\;\;\frac{2}{k \cdot \left(k \cdot t\right)} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)\\ \mathbf{elif}\;k \leq 1.4 \cdot 10^{+85}:\\ \;\;\;\;2 \cdot \left(\frac{\cos k}{k \cdot k} \cdot \left(\frac{\ell}{t} \cdot \frac{\ell}{t_1}\right)\right)\\ \mathbf{else}:\\ \;\;\;\;2 \cdot \frac{\frac{\cos k}{k} \cdot \frac{\ell}{\frac{k}{\ell}}}{t \cdot t_1}\\ \end{array} \end{array} \]
(FPCore (t l k)
 :precision binary64
 (let* ((t_1 (pow (sin k) 2.0)))
   (if (<= k 1.6e-89)
     (* (/ 2.0 (* k (* k t))) (* (/ l (sin k)) (/ l (tan k))))
     (if (<= k 1.4e+85)
       (* 2.0 (* (/ (cos k) (* k k)) (* (/ l t) (/ l t_1))))
       (* 2.0 (/ (* (/ (cos k) k) (/ l (/ k l))) (* t t_1)))))))
double code(double t, double l, double k) {
	double t_1 = pow(sin(k), 2.0);
	double tmp;
	if (k <= 1.6e-89) {
		tmp = (2.0 / (k * (k * t))) * ((l / sin(k)) * (l / tan(k)));
	} else if (k <= 1.4e+85) {
		tmp = 2.0 * ((cos(k) / (k * k)) * ((l / t) * (l / t_1)));
	} else {
		tmp = 2.0 * (((cos(k) / k) * (l / (k / l))) / (t * 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) :: tmp
    t_1 = sin(k) ** 2.0d0
    if (k <= 1.6d-89) then
        tmp = (2.0d0 / (k * (k * t))) * ((l / sin(k)) * (l / tan(k)))
    else if (k <= 1.4d+85) then
        tmp = 2.0d0 * ((cos(k) / (k * k)) * ((l / t) * (l / t_1)))
    else
        tmp = 2.0d0 * (((cos(k) / k) * (l / (k / l))) / (t * t_1))
    end if
    code = tmp
end function
public static double code(double t, double l, double k) {
	double t_1 = Math.pow(Math.sin(k), 2.0);
	double tmp;
	if (k <= 1.6e-89) {
		tmp = (2.0 / (k * (k * t))) * ((l / Math.sin(k)) * (l / Math.tan(k)));
	} else if (k <= 1.4e+85) {
		tmp = 2.0 * ((Math.cos(k) / (k * k)) * ((l / t) * (l / t_1)));
	} else {
		tmp = 2.0 * (((Math.cos(k) / k) * (l / (k / l))) / (t * t_1));
	}
	return tmp;
}
def code(t, l, k):
	t_1 = math.pow(math.sin(k), 2.0)
	tmp = 0
	if k <= 1.6e-89:
		tmp = (2.0 / (k * (k * t))) * ((l / math.sin(k)) * (l / math.tan(k)))
	elif k <= 1.4e+85:
		tmp = 2.0 * ((math.cos(k) / (k * k)) * ((l / t) * (l / t_1)))
	else:
		tmp = 2.0 * (((math.cos(k) / k) * (l / (k / l))) / (t * t_1))
	return tmp
function code(t, l, k)
	t_1 = sin(k) ^ 2.0
	tmp = 0.0
	if (k <= 1.6e-89)
		tmp = Float64(Float64(2.0 / Float64(k * Float64(k * t))) * Float64(Float64(l / sin(k)) * Float64(l / tan(k))));
	elseif (k <= 1.4e+85)
		tmp = Float64(2.0 * Float64(Float64(cos(k) / Float64(k * k)) * Float64(Float64(l / t) * Float64(l / t_1))));
	else
		tmp = Float64(2.0 * Float64(Float64(Float64(cos(k) / k) * Float64(l / Float64(k / l))) / Float64(t * t_1)));
	end
	return tmp
end
function tmp_2 = code(t, l, k)
	t_1 = sin(k) ^ 2.0;
	tmp = 0.0;
	if (k <= 1.6e-89)
		tmp = (2.0 / (k * (k * t))) * ((l / sin(k)) * (l / tan(k)));
	elseif (k <= 1.4e+85)
		tmp = 2.0 * ((cos(k) / (k * k)) * ((l / t) * (l / t_1)));
	else
		tmp = 2.0 * (((cos(k) / k) * (l / (k / l))) / (t * t_1));
	end
	tmp_2 = tmp;
end
code[t_, l_, k_] := Block[{t$95$1 = N[Power[N[Sin[k], $MachinePrecision], 2.0], $MachinePrecision]}, If[LessEqual[k, 1.6e-89], N[(N[(2.0 / N[(k * N[(k * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] * N[(N[(l / N[Sin[k], $MachinePrecision]), $MachinePrecision] * N[(l / N[Tan[k], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[k, 1.4e+85], N[(2.0 * N[(N[(N[Cos[k], $MachinePrecision] / N[(k * k), $MachinePrecision]), $MachinePrecision] * N[(N[(l / t), $MachinePrecision] * N[(l / t$95$1), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(2.0 * N[(N[(N[(N[Cos[k], $MachinePrecision] / k), $MachinePrecision] * N[(l / N[(k / l), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(t * t$95$1), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := {\sin k}^{2}\\
\mathbf{if}\;k \leq 1.6 \cdot 10^{-89}:\\
\;\;\;\;\frac{2}{k \cdot \left(k \cdot t\right)} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)\\

\mathbf{elif}\;k \leq 1.4 \cdot 10^{+85}:\\
\;\;\;\;2 \cdot \left(\frac{\cos k}{k \cdot k} \cdot \left(\frac{\ell}{t} \cdot \frac{\ell}{t_1}\right)\right)\\

\mathbf{else}:\\
\;\;\;\;2 \cdot \frac{\frac{\cos k}{k} \cdot \frac{\ell}{\frac{k}{\ell}}}{t \cdot t_1}\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if k < 1.59999999999999999e-89

    1. Initial program 34.3%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
    2. Step-by-step derivation
      1. associate-*l*34.2%

        \[\leadsto \frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)\right)} \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      2. associate-*l*34.2%

        \[\leadsto \frac{2}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)\right)}} \]
      3. associate-/r*34.2%

        \[\leadsto \color{blue}{\frac{\frac{2}{\frac{{t}^{3}}{\ell \cdot \ell}}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)}} \]
      4. associate-/r/34.2%

        \[\leadsto \frac{\color{blue}{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      5. *-commutative34.2%

        \[\leadsto \frac{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}{\color{blue}{\left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right) \cdot \left(\sin k \cdot \tan k\right)}} \]
      6. times-frac34.9%

        \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k}} \]
      7. +-commutative34.9%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{\left({\left(\frac{k}{t}\right)}^{2} + 1\right)} - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      8. associate--l+39.3%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2} + \left(1 - 1\right)}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      9. metadata-eval39.3%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2} + \color{blue}{0}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      10. +-rgt-identity39.3%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2}}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      11. times-frac46.3%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \color{blue}{\left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    3. Simplified46.3%

      \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    4. Taylor expanded in t around 0 79.2%

      \[\leadsto \color{blue}{\frac{2}{{k}^{2} \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    5. Step-by-step derivation
      1. unpow279.2%

        \[\leadsto \frac{2}{\color{blue}{\left(k \cdot k\right)} \cdot t} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    6. Simplified79.2%

      \[\leadsto \color{blue}{\frac{2}{\left(k \cdot k\right) \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    7. Taylor expanded in k around 0 79.2%

      \[\leadsto \frac{2}{\color{blue}{{k}^{2} \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    8. Step-by-step derivation
      1. unpow279.2%

        \[\leadsto \frac{2}{\color{blue}{\left(k \cdot k\right)} \cdot t} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
      2. associate-*r*83.0%

        \[\leadsto \frac{2}{\color{blue}{k \cdot \left(k \cdot t\right)}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    9. Simplified83.0%

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

    if 1.59999999999999999e-89 < k < 1.4e85

    1. Initial program 23.3%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
    2. Step-by-step derivation
      1. associate-*l*23.4%

        \[\leadsto \frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)\right)} \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      2. associate-*l*23.4%

        \[\leadsto \frac{2}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)\right)}} \]
      3. associate-/r*23.3%

        \[\leadsto \color{blue}{\frac{\frac{2}{\frac{{t}^{3}}{\ell \cdot \ell}}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)}} \]
      4. associate-/r/23.4%

        \[\leadsto \frac{\color{blue}{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      5. *-commutative23.4%

        \[\leadsto \frac{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}{\color{blue}{\left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right) \cdot \left(\sin k \cdot \tan k\right)}} \]
      6. times-frac23.4%

        \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k}} \]
      7. +-commutative23.4%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{\left({\left(\frac{k}{t}\right)}^{2} + 1\right)} - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      8. associate--l+34.8%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2} + \left(1 - 1\right)}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      9. metadata-eval34.8%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2} + \color{blue}{0}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      10. +-rgt-identity34.8%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2}}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      11. times-frac36.8%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \color{blue}{\left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    3. Simplified36.8%

      \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    4. Taylor expanded in t around 0 83.2%

      \[\leadsto \color{blue}{\frac{2}{{k}^{2} \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    5. Step-by-step derivation
      1. unpow283.2%

        \[\leadsto \frac{2}{\color{blue}{\left(k \cdot k\right)} \cdot t} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    6. Simplified83.2%

      \[\leadsto \color{blue}{\frac{2}{\left(k \cdot k\right) \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    7. Taylor expanded in k around inf 79.6%

      \[\leadsto \color{blue}{2 \cdot \frac{\cos k \cdot {\ell}^{2}}{{k}^{2} \cdot \left({\sin k}^{2} \cdot t\right)}} \]
    8. Step-by-step derivation
      1. times-frac82.3%

        \[\leadsto 2 \cdot \color{blue}{\left(\frac{\cos k}{{k}^{2}} \cdot \frac{{\ell}^{2}}{{\sin k}^{2} \cdot t}\right)} \]
      2. unpow282.3%

        \[\leadsto 2 \cdot \left(\frac{\cos k}{\color{blue}{k \cdot k}} \cdot \frac{{\ell}^{2}}{{\sin k}^{2} \cdot t}\right) \]
      3. unpow282.3%

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

        \[\leadsto 2 \cdot \left(\frac{\cos k}{k \cdot k} \cdot \frac{\ell \cdot \ell}{\color{blue}{t \cdot {\sin k}^{2}}}\right) \]
      5. times-frac95.9%

        \[\leadsto 2 \cdot \left(\frac{\cos k}{k \cdot k} \cdot \color{blue}{\left(\frac{\ell}{t} \cdot \frac{\ell}{{\sin k}^{2}}\right)}\right) \]
    9. Simplified95.9%

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

    if 1.4e85 < k

    1. Initial program 41.4%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
    2. Step-by-step derivation
      1. associate-*l*41.4%

        \[\leadsto \frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)\right)} \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      2. associate-*l*41.4%

        \[\leadsto \frac{2}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)\right)}} \]
      3. associate-/r*41.4%

        \[\leadsto \color{blue}{\frac{\frac{2}{\frac{{t}^{3}}{\ell \cdot \ell}}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)}} \]
      4. associate-/r/41.4%

        \[\leadsto \frac{\color{blue}{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      5. *-commutative41.4%

        \[\leadsto \frac{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}{\color{blue}{\left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right) \cdot \left(\sin k \cdot \tan k\right)}} \]
      6. times-frac41.3%

        \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k}} \]
      7. +-commutative41.3%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{\left({\left(\frac{k}{t}\right)}^{2} + 1\right)} - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      8. associate--l+54.0%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2} + \left(1 - 1\right)}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      9. metadata-eval54.0%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2} + \color{blue}{0}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      10. +-rgt-identity54.0%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2}}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      11. times-frac54.0%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \color{blue}{\left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    3. Simplified54.0%

      \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    4. Taylor expanded in t around 0 65.3%

      \[\leadsto \color{blue}{2 \cdot \frac{\cos k \cdot {\ell}^{2}}{{k}^{2} \cdot \left({\sin k}^{2} \cdot t\right)}} \]
    5. Step-by-step derivation
      1. associate-/r*65.5%

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

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

        \[\leadsto 2 \cdot \frac{\frac{\cos k \cdot \left(\ell \cdot \ell\right)}{\color{blue}{k \cdot k}}}{{\sin k}^{2} \cdot t} \]
      4. *-commutative65.5%

        \[\leadsto 2 \cdot \frac{\frac{\cos k \cdot \left(\ell \cdot \ell\right)}{k \cdot k}}{\color{blue}{t \cdot {\sin k}^{2}}} \]
    6. Simplified65.5%

      \[\leadsto \color{blue}{2 \cdot \frac{\frac{\cos k \cdot \left(\ell \cdot \ell\right)}{k \cdot k}}{t \cdot {\sin k}^{2}}} \]
    7. Taylor expanded in k around inf 65.5%

      \[\leadsto 2 \cdot \frac{\color{blue}{\frac{\cos k \cdot {\ell}^{2}}{{k}^{2}}}}{t \cdot {\sin k}^{2}} \]
    8. Step-by-step derivation
      1. unpow265.5%

        \[\leadsto 2 \cdot \frac{\frac{\cos k \cdot {\ell}^{2}}{\color{blue}{k \cdot k}}}{t \cdot {\sin k}^{2}} \]
      2. times-frac67.8%

        \[\leadsto 2 \cdot \frac{\color{blue}{\frac{\cos k}{k} \cdot \frac{{\ell}^{2}}{k}}}{t \cdot {\sin k}^{2}} \]
      3. unpow267.8%

        \[\leadsto 2 \cdot \frac{\frac{\cos k}{k} \cdot \frac{\color{blue}{\ell \cdot \ell}}{k}}{t \cdot {\sin k}^{2}} \]
      4. associate-/l*84.6%

        \[\leadsto 2 \cdot \frac{\frac{\cos k}{k} \cdot \color{blue}{\frac{\ell}{\frac{k}{\ell}}}}{t \cdot {\sin k}^{2}} \]
    9. Simplified84.6%

      \[\leadsto 2 \cdot \frac{\color{blue}{\frac{\cos k}{k} \cdot \frac{\ell}{\frac{k}{\ell}}}}{t \cdot {\sin k}^{2}} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification86.0%

    \[\leadsto \begin{array}{l} \mathbf{if}\;k \leq 1.6 \cdot 10^{-89}:\\ \;\;\;\;\frac{2}{k \cdot \left(k \cdot t\right)} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)\\ \mathbf{elif}\;k \leq 1.4 \cdot 10^{+85}:\\ \;\;\;\;2 \cdot \left(\frac{\cos k}{k \cdot k} \cdot \left(\frac{\ell}{t} \cdot \frac{\ell}{{\sin k}^{2}}\right)\right)\\ \mathbf{else}:\\ \;\;\;\;2 \cdot \frac{\frac{\cos k}{k} \cdot \frac{\ell}{\frac{k}{\ell}}}{t \cdot {\sin k}^{2}}\\ \end{array} \]

Alternative 6: 88.7% accurate, 1.3× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := {\sin k}^{2}\\ \mathbf{if}\;k \leq 1.6 \cdot 10^{-89}:\\ \;\;\;\;\frac{2}{k \cdot \left(k \cdot t\right)} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)\\ \mathbf{elif}\;k \leq 2.3 \cdot 10^{+82}:\\ \;\;\;\;2 \cdot \left(\frac{\cos k}{k \cdot k} \cdot \left(\frac{\ell}{t} \cdot \frac{\ell}{t_1}\right)\right)\\ \mathbf{else}:\\ \;\;\;\;2 \cdot \frac{\frac{\frac{\cos k}{k} \cdot \ell}{\frac{k}{\ell}}}{t \cdot t_1}\\ \end{array} \end{array} \]
(FPCore (t l k)
 :precision binary64
 (let* ((t_1 (pow (sin k) 2.0)))
   (if (<= k 1.6e-89)
     (* (/ 2.0 (* k (* k t))) (* (/ l (sin k)) (/ l (tan k))))
     (if (<= k 2.3e+82)
       (* 2.0 (* (/ (cos k) (* k k)) (* (/ l t) (/ l t_1))))
       (* 2.0 (/ (/ (* (/ (cos k) k) l) (/ k l)) (* t t_1)))))))
double code(double t, double l, double k) {
	double t_1 = pow(sin(k), 2.0);
	double tmp;
	if (k <= 1.6e-89) {
		tmp = (2.0 / (k * (k * t))) * ((l / sin(k)) * (l / tan(k)));
	} else if (k <= 2.3e+82) {
		tmp = 2.0 * ((cos(k) / (k * k)) * ((l / t) * (l / t_1)));
	} else {
		tmp = 2.0 * ((((cos(k) / k) * l) / (k / l)) / (t * 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) :: tmp
    t_1 = sin(k) ** 2.0d0
    if (k <= 1.6d-89) then
        tmp = (2.0d0 / (k * (k * t))) * ((l / sin(k)) * (l / tan(k)))
    else if (k <= 2.3d+82) then
        tmp = 2.0d0 * ((cos(k) / (k * k)) * ((l / t) * (l / t_1)))
    else
        tmp = 2.0d0 * ((((cos(k) / k) * l) / (k / l)) / (t * t_1))
    end if
    code = tmp
end function
public static double code(double t, double l, double k) {
	double t_1 = Math.pow(Math.sin(k), 2.0);
	double tmp;
	if (k <= 1.6e-89) {
		tmp = (2.0 / (k * (k * t))) * ((l / Math.sin(k)) * (l / Math.tan(k)));
	} else if (k <= 2.3e+82) {
		tmp = 2.0 * ((Math.cos(k) / (k * k)) * ((l / t) * (l / t_1)));
	} else {
		tmp = 2.0 * ((((Math.cos(k) / k) * l) / (k / l)) / (t * t_1));
	}
	return tmp;
}
def code(t, l, k):
	t_1 = math.pow(math.sin(k), 2.0)
	tmp = 0
	if k <= 1.6e-89:
		tmp = (2.0 / (k * (k * t))) * ((l / math.sin(k)) * (l / math.tan(k)))
	elif k <= 2.3e+82:
		tmp = 2.0 * ((math.cos(k) / (k * k)) * ((l / t) * (l / t_1)))
	else:
		tmp = 2.0 * ((((math.cos(k) / k) * l) / (k / l)) / (t * t_1))
	return tmp
function code(t, l, k)
	t_1 = sin(k) ^ 2.0
	tmp = 0.0
	if (k <= 1.6e-89)
		tmp = Float64(Float64(2.0 / Float64(k * Float64(k * t))) * Float64(Float64(l / sin(k)) * Float64(l / tan(k))));
	elseif (k <= 2.3e+82)
		tmp = Float64(2.0 * Float64(Float64(cos(k) / Float64(k * k)) * Float64(Float64(l / t) * Float64(l / t_1))));
	else
		tmp = Float64(2.0 * Float64(Float64(Float64(Float64(cos(k) / k) * l) / Float64(k / l)) / Float64(t * t_1)));
	end
	return tmp
end
function tmp_2 = code(t, l, k)
	t_1 = sin(k) ^ 2.0;
	tmp = 0.0;
	if (k <= 1.6e-89)
		tmp = (2.0 / (k * (k * t))) * ((l / sin(k)) * (l / tan(k)));
	elseif (k <= 2.3e+82)
		tmp = 2.0 * ((cos(k) / (k * k)) * ((l / t) * (l / t_1)));
	else
		tmp = 2.0 * ((((cos(k) / k) * l) / (k / l)) / (t * t_1));
	end
	tmp_2 = tmp;
end
code[t_, l_, k_] := Block[{t$95$1 = N[Power[N[Sin[k], $MachinePrecision], 2.0], $MachinePrecision]}, If[LessEqual[k, 1.6e-89], N[(N[(2.0 / N[(k * N[(k * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] * N[(N[(l / N[Sin[k], $MachinePrecision]), $MachinePrecision] * N[(l / N[Tan[k], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[k, 2.3e+82], N[(2.0 * N[(N[(N[Cos[k], $MachinePrecision] / N[(k * k), $MachinePrecision]), $MachinePrecision] * N[(N[(l / t), $MachinePrecision] * N[(l / t$95$1), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(2.0 * N[(N[(N[(N[(N[Cos[k], $MachinePrecision] / k), $MachinePrecision] * l), $MachinePrecision] / N[(k / l), $MachinePrecision]), $MachinePrecision] / N[(t * t$95$1), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := {\sin k}^{2}\\
\mathbf{if}\;k \leq 1.6 \cdot 10^{-89}:\\
\;\;\;\;\frac{2}{k \cdot \left(k \cdot t\right)} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)\\

\mathbf{elif}\;k \leq 2.3 \cdot 10^{+82}:\\
\;\;\;\;2 \cdot \left(\frac{\cos k}{k \cdot k} \cdot \left(\frac{\ell}{t} \cdot \frac{\ell}{t_1}\right)\right)\\

\mathbf{else}:\\
\;\;\;\;2 \cdot \frac{\frac{\frac{\cos k}{k} \cdot \ell}{\frac{k}{\ell}}}{t \cdot t_1}\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if k < 1.59999999999999999e-89

    1. Initial program 34.3%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
    2. Step-by-step derivation
      1. associate-*l*34.2%

        \[\leadsto \frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)\right)} \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      2. associate-*l*34.2%

        \[\leadsto \frac{2}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)\right)}} \]
      3. associate-/r*34.2%

        \[\leadsto \color{blue}{\frac{\frac{2}{\frac{{t}^{3}}{\ell \cdot \ell}}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)}} \]
      4. associate-/r/34.2%

        \[\leadsto \frac{\color{blue}{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      5. *-commutative34.2%

        \[\leadsto \frac{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}{\color{blue}{\left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right) \cdot \left(\sin k \cdot \tan k\right)}} \]
      6. times-frac34.9%

        \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k}} \]
      7. +-commutative34.9%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{\left({\left(\frac{k}{t}\right)}^{2} + 1\right)} - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      8. associate--l+39.3%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2} + \left(1 - 1\right)}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      9. metadata-eval39.3%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2} + \color{blue}{0}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      10. +-rgt-identity39.3%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2}}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      11. times-frac46.3%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \color{blue}{\left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    3. Simplified46.3%

      \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    4. Taylor expanded in t around 0 79.2%

      \[\leadsto \color{blue}{\frac{2}{{k}^{2} \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    5. Step-by-step derivation
      1. unpow279.2%

        \[\leadsto \frac{2}{\color{blue}{\left(k \cdot k\right)} \cdot t} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    6. Simplified79.2%

      \[\leadsto \color{blue}{\frac{2}{\left(k \cdot k\right) \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    7. Taylor expanded in k around 0 79.2%

      \[\leadsto \frac{2}{\color{blue}{{k}^{2} \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    8. Step-by-step derivation
      1. unpow279.2%

        \[\leadsto \frac{2}{\color{blue}{\left(k \cdot k\right)} \cdot t} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
      2. associate-*r*83.0%

        \[\leadsto \frac{2}{\color{blue}{k \cdot \left(k \cdot t\right)}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    9. Simplified83.0%

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

    if 1.59999999999999999e-89 < k < 2.29999999999999988e82

    1. Initial program 21.9%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
    2. Step-by-step derivation
      1. associate-*l*21.9%

        \[\leadsto \frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)\right)} \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      2. associate-*l*21.9%

        \[\leadsto \frac{2}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)\right)}} \]
      3. associate-/r*21.8%

        \[\leadsto \color{blue}{\frac{\frac{2}{\frac{{t}^{3}}{\ell \cdot \ell}}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)}} \]
      4. associate-/r/21.9%

        \[\leadsto \frac{\color{blue}{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      5. *-commutative21.9%

        \[\leadsto \frac{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}{\color{blue}{\left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right) \cdot \left(\sin k \cdot \tan k\right)}} \]
      6. times-frac21.9%

        \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k}} \]
      7. +-commutative21.9%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{\left({\left(\frac{k}{t}\right)}^{2} + 1\right)} - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      8. associate--l+33.6%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2} + \left(1 - 1\right)}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      9. metadata-eval33.6%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2} + \color{blue}{0}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      10. +-rgt-identity33.6%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2}}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      11. times-frac35.6%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \color{blue}{\left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    3. Simplified35.6%

      \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    4. Taylor expanded in t around 0 82.9%

      \[\leadsto \color{blue}{\frac{2}{{k}^{2} \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    5. Step-by-step derivation
      1. unpow282.9%

        \[\leadsto \frac{2}{\color{blue}{\left(k \cdot k\right)} \cdot t} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    6. Simplified82.9%

      \[\leadsto \color{blue}{\frac{2}{\left(k \cdot k\right) \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    7. Taylor expanded in k around inf 79.2%

      \[\leadsto \color{blue}{2 \cdot \frac{\cos k \cdot {\ell}^{2}}{{k}^{2} \cdot \left({\sin k}^{2} \cdot t\right)}} \]
    8. Step-by-step derivation
      1. times-frac82.0%

        \[\leadsto 2 \cdot \color{blue}{\left(\frac{\cos k}{{k}^{2}} \cdot \frac{{\ell}^{2}}{{\sin k}^{2} \cdot t}\right)} \]
      2. unpow282.0%

        \[\leadsto 2 \cdot \left(\frac{\cos k}{\color{blue}{k \cdot k}} \cdot \frac{{\ell}^{2}}{{\sin k}^{2} \cdot t}\right) \]
      3. unpow282.0%

        \[\leadsto 2 \cdot \left(\frac{\cos k}{k \cdot k} \cdot \frac{\color{blue}{\ell \cdot \ell}}{{\sin k}^{2} \cdot t}\right) \]
      4. *-commutative82.0%

        \[\leadsto 2 \cdot \left(\frac{\cos k}{k \cdot k} \cdot \frac{\ell \cdot \ell}{\color{blue}{t \cdot {\sin k}^{2}}}\right) \]
      5. times-frac95.8%

        \[\leadsto 2 \cdot \left(\frac{\cos k}{k \cdot k} \cdot \color{blue}{\left(\frac{\ell}{t} \cdot \frac{\ell}{{\sin k}^{2}}\right)}\right) \]
    9. Simplified95.8%

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

    if 2.29999999999999988e82 < k

    1. Initial program 42.3%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
    2. Step-by-step derivation
      1. associate-*l*42.3%

        \[\leadsto \frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)\right)} \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      2. associate-*l*42.3%

        \[\leadsto \frac{2}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)\right)}} \]
      3. associate-/r*42.3%

        \[\leadsto \color{blue}{\frac{\frac{2}{\frac{{t}^{3}}{\ell \cdot \ell}}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)}} \]
      4. associate-/r/42.3%

        \[\leadsto \frac{\color{blue}{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      5. *-commutative42.3%

        \[\leadsto \frac{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}{\color{blue}{\left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right) \cdot \left(\sin k \cdot \tan k\right)}} \]
      6. times-frac42.2%

        \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k}} \]
      7. +-commutative42.2%

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

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2} + \left(1 - 1\right)}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      9. metadata-eval54.7%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2} + \color{blue}{0}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      10. +-rgt-identity54.7%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2}}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      11. times-frac54.7%

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

      \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    4. Taylor expanded in t around 0 65.9%

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

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

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

        \[\leadsto 2 \cdot \frac{\frac{\cos k \cdot \left(\ell \cdot \ell\right)}{\color{blue}{k \cdot k}}}{{\sin k}^{2} \cdot t} \]
      4. *-commutative66.0%

        \[\leadsto 2 \cdot \frac{\frac{\cos k \cdot \left(\ell \cdot \ell\right)}{k \cdot k}}{\color{blue}{t \cdot {\sin k}^{2}}} \]
    6. Simplified66.0%

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

      \[\leadsto 2 \cdot \frac{\color{blue}{\frac{\cos k \cdot {\ell}^{2}}{{k}^{2}}}}{t \cdot {\sin k}^{2}} \]
    8. Step-by-step derivation
      1. unpow266.0%

        \[\leadsto 2 \cdot \frac{\frac{\cos k \cdot {\ell}^{2}}{\color{blue}{k \cdot k}}}{t \cdot {\sin k}^{2}} \]
      2. times-frac68.2%

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

        \[\leadsto 2 \cdot \frac{\frac{\cos k}{k} \cdot \frac{\color{blue}{\ell \cdot \ell}}{k}}{t \cdot {\sin k}^{2}} \]
      4. associate-/l*84.8%

        \[\leadsto 2 \cdot \frac{\frac{\cos k}{k} \cdot \color{blue}{\frac{\ell}{\frac{k}{\ell}}}}{t \cdot {\sin k}^{2}} \]
    9. Simplified84.8%

      \[\leadsto 2 \cdot \frac{\color{blue}{\frac{\cos k}{k} \cdot \frac{\ell}{\frac{k}{\ell}}}}{t \cdot {\sin k}^{2}} \]
    10. Step-by-step derivation
      1. associate-*r/98.1%

        \[\leadsto 2 \cdot \frac{\color{blue}{\frac{\frac{\cos k}{k} \cdot \ell}{\frac{k}{\ell}}}}{t \cdot {\sin k}^{2}} \]
    11. Applied egg-rr98.1%

      \[\leadsto 2 \cdot \frac{\color{blue}{\frac{\frac{\cos k}{k} \cdot \ell}{\frac{k}{\ell}}}}{t \cdot {\sin k}^{2}} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification89.3%

    \[\leadsto \begin{array}{l} \mathbf{if}\;k \leq 1.6 \cdot 10^{-89}:\\ \;\;\;\;\frac{2}{k \cdot \left(k \cdot t\right)} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)\\ \mathbf{elif}\;k \leq 2.3 \cdot 10^{+82}:\\ \;\;\;\;2 \cdot \left(\frac{\cos k}{k \cdot k} \cdot \left(\frac{\ell}{t} \cdot \frac{\ell}{{\sin k}^{2}}\right)\right)\\ \mathbf{else}:\\ \;\;\;\;2 \cdot \frac{\frac{\frac{\cos k}{k} \cdot \ell}{\frac{k}{\ell}}}{t \cdot {\sin k}^{2}}\\ \end{array} \]

Alternative 7: 88.7% accurate, 1.3× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := {\sin k}^{2}\\ \mathbf{if}\;k \leq 1.5 \cdot 10^{-89}:\\ \;\;\;\;\frac{2}{k \cdot \left(k \cdot t\right)} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)\\ \mathbf{elif}\;k \leq 1.26 \cdot 10^{+85}:\\ \;\;\;\;2 \cdot \left(\frac{\cos k}{k \cdot k} \cdot \left(\frac{\ell}{t} \cdot \frac{\ell}{t_1}\right)\right)\\ \mathbf{else}:\\ \;\;\;\;2 \cdot \frac{\frac{\frac{\cos k \cdot \ell}{k}}{\frac{k}{\ell}}}{t \cdot t_1}\\ \end{array} \end{array} \]
(FPCore (t l k)
 :precision binary64
 (let* ((t_1 (pow (sin k) 2.0)))
   (if (<= k 1.5e-89)
     (* (/ 2.0 (* k (* k t))) (* (/ l (sin k)) (/ l (tan k))))
     (if (<= k 1.26e+85)
       (* 2.0 (* (/ (cos k) (* k k)) (* (/ l t) (/ l t_1))))
       (* 2.0 (/ (/ (/ (* (cos k) l) k) (/ k l)) (* t t_1)))))))
double code(double t, double l, double k) {
	double t_1 = pow(sin(k), 2.0);
	double tmp;
	if (k <= 1.5e-89) {
		tmp = (2.0 / (k * (k * t))) * ((l / sin(k)) * (l / tan(k)));
	} else if (k <= 1.26e+85) {
		tmp = 2.0 * ((cos(k) / (k * k)) * ((l / t) * (l / t_1)));
	} else {
		tmp = 2.0 * ((((cos(k) * l) / k) / (k / l)) / (t * 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) :: tmp
    t_1 = sin(k) ** 2.0d0
    if (k <= 1.5d-89) then
        tmp = (2.0d0 / (k * (k * t))) * ((l / sin(k)) * (l / tan(k)))
    else if (k <= 1.26d+85) then
        tmp = 2.0d0 * ((cos(k) / (k * k)) * ((l / t) * (l / t_1)))
    else
        tmp = 2.0d0 * ((((cos(k) * l) / k) / (k / l)) / (t * t_1))
    end if
    code = tmp
end function
public static double code(double t, double l, double k) {
	double t_1 = Math.pow(Math.sin(k), 2.0);
	double tmp;
	if (k <= 1.5e-89) {
		tmp = (2.0 / (k * (k * t))) * ((l / Math.sin(k)) * (l / Math.tan(k)));
	} else if (k <= 1.26e+85) {
		tmp = 2.0 * ((Math.cos(k) / (k * k)) * ((l / t) * (l / t_1)));
	} else {
		tmp = 2.0 * ((((Math.cos(k) * l) / k) / (k / l)) / (t * t_1));
	}
	return tmp;
}
def code(t, l, k):
	t_1 = math.pow(math.sin(k), 2.0)
	tmp = 0
	if k <= 1.5e-89:
		tmp = (2.0 / (k * (k * t))) * ((l / math.sin(k)) * (l / math.tan(k)))
	elif k <= 1.26e+85:
		tmp = 2.0 * ((math.cos(k) / (k * k)) * ((l / t) * (l / t_1)))
	else:
		tmp = 2.0 * ((((math.cos(k) * l) / k) / (k / l)) / (t * t_1))
	return tmp
function code(t, l, k)
	t_1 = sin(k) ^ 2.0
	tmp = 0.0
	if (k <= 1.5e-89)
		tmp = Float64(Float64(2.0 / Float64(k * Float64(k * t))) * Float64(Float64(l / sin(k)) * Float64(l / tan(k))));
	elseif (k <= 1.26e+85)
		tmp = Float64(2.0 * Float64(Float64(cos(k) / Float64(k * k)) * Float64(Float64(l / t) * Float64(l / t_1))));
	else
		tmp = Float64(2.0 * Float64(Float64(Float64(Float64(cos(k) * l) / k) / Float64(k / l)) / Float64(t * t_1)));
	end
	return tmp
end
function tmp_2 = code(t, l, k)
	t_1 = sin(k) ^ 2.0;
	tmp = 0.0;
	if (k <= 1.5e-89)
		tmp = (2.0 / (k * (k * t))) * ((l / sin(k)) * (l / tan(k)));
	elseif (k <= 1.26e+85)
		tmp = 2.0 * ((cos(k) / (k * k)) * ((l / t) * (l / t_1)));
	else
		tmp = 2.0 * ((((cos(k) * l) / k) / (k / l)) / (t * t_1));
	end
	tmp_2 = tmp;
end
code[t_, l_, k_] := Block[{t$95$1 = N[Power[N[Sin[k], $MachinePrecision], 2.0], $MachinePrecision]}, If[LessEqual[k, 1.5e-89], N[(N[(2.0 / N[(k * N[(k * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] * N[(N[(l / N[Sin[k], $MachinePrecision]), $MachinePrecision] * N[(l / N[Tan[k], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[k, 1.26e+85], N[(2.0 * N[(N[(N[Cos[k], $MachinePrecision] / N[(k * k), $MachinePrecision]), $MachinePrecision] * N[(N[(l / t), $MachinePrecision] * N[(l / t$95$1), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(2.0 * N[(N[(N[(N[(N[Cos[k], $MachinePrecision] * l), $MachinePrecision] / k), $MachinePrecision] / N[(k / l), $MachinePrecision]), $MachinePrecision] / N[(t * t$95$1), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := {\sin k}^{2}\\
\mathbf{if}\;k \leq 1.5 \cdot 10^{-89}:\\
\;\;\;\;\frac{2}{k \cdot \left(k \cdot t\right)} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)\\

\mathbf{elif}\;k \leq 1.26 \cdot 10^{+85}:\\
\;\;\;\;2 \cdot \left(\frac{\cos k}{k \cdot k} \cdot \left(\frac{\ell}{t} \cdot \frac{\ell}{t_1}\right)\right)\\

\mathbf{else}:\\
\;\;\;\;2 \cdot \frac{\frac{\frac{\cos k \cdot \ell}{k}}{\frac{k}{\ell}}}{t \cdot t_1}\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if k < 1.5e-89

    1. Initial program 34.3%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
    2. Step-by-step derivation
      1. associate-*l*34.2%

        \[\leadsto \frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)\right)} \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      2. associate-*l*34.2%

        \[\leadsto \frac{2}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)\right)}} \]
      3. associate-/r*34.2%

        \[\leadsto \color{blue}{\frac{\frac{2}{\frac{{t}^{3}}{\ell \cdot \ell}}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)}} \]
      4. associate-/r/34.2%

        \[\leadsto \frac{\color{blue}{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      5. *-commutative34.2%

        \[\leadsto \frac{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}{\color{blue}{\left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right) \cdot \left(\sin k \cdot \tan k\right)}} \]
      6. times-frac34.9%

        \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k}} \]
      7. +-commutative34.9%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{\left({\left(\frac{k}{t}\right)}^{2} + 1\right)} - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      8. associate--l+39.3%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2} + \left(1 - 1\right)}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      9. metadata-eval39.3%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2} + \color{blue}{0}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      10. +-rgt-identity39.3%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2}}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      11. times-frac46.3%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \color{blue}{\left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    3. Simplified46.3%

      \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    4. Taylor expanded in t around 0 79.2%

      \[\leadsto \color{blue}{\frac{2}{{k}^{2} \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    5. Step-by-step derivation
      1. unpow279.2%

        \[\leadsto \frac{2}{\color{blue}{\left(k \cdot k\right)} \cdot t} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    6. Simplified79.2%

      \[\leadsto \color{blue}{\frac{2}{\left(k \cdot k\right) \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    7. Taylor expanded in k around 0 79.2%

      \[\leadsto \frac{2}{\color{blue}{{k}^{2} \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    8. Step-by-step derivation
      1. unpow279.2%

        \[\leadsto \frac{2}{\color{blue}{\left(k \cdot k\right)} \cdot t} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
      2. associate-*r*83.0%

        \[\leadsto \frac{2}{\color{blue}{k \cdot \left(k \cdot t\right)}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    9. Simplified83.0%

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

    if 1.5e-89 < k < 1.26000000000000003e85

    1. Initial program 23.3%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
    2. Step-by-step derivation
      1. associate-*l*23.4%

        \[\leadsto \frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)\right)} \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      2. associate-*l*23.4%

        \[\leadsto \frac{2}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)\right)}} \]
      3. associate-/r*23.3%

        \[\leadsto \color{blue}{\frac{\frac{2}{\frac{{t}^{3}}{\ell \cdot \ell}}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)}} \]
      4. associate-/r/23.4%

        \[\leadsto \frac{\color{blue}{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      5. *-commutative23.4%

        \[\leadsto \frac{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}{\color{blue}{\left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right) \cdot \left(\sin k \cdot \tan k\right)}} \]
      6. times-frac23.4%

        \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k}} \]
      7. +-commutative23.4%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{\left({\left(\frac{k}{t}\right)}^{2} + 1\right)} - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      8. associate--l+34.8%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2} + \left(1 - 1\right)}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      9. metadata-eval34.8%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2} + \color{blue}{0}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      10. +-rgt-identity34.8%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2}}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      11. times-frac36.8%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \color{blue}{\left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    3. Simplified36.8%

      \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    4. Taylor expanded in t around 0 83.2%

      \[\leadsto \color{blue}{\frac{2}{{k}^{2} \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    5. Step-by-step derivation
      1. unpow283.2%

        \[\leadsto \frac{2}{\color{blue}{\left(k \cdot k\right)} \cdot t} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    6. Simplified83.2%

      \[\leadsto \color{blue}{\frac{2}{\left(k \cdot k\right) \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    7. Taylor expanded in k around inf 79.6%

      \[\leadsto \color{blue}{2 \cdot \frac{\cos k \cdot {\ell}^{2}}{{k}^{2} \cdot \left({\sin k}^{2} \cdot t\right)}} \]
    8. Step-by-step derivation
      1. times-frac82.3%

        \[\leadsto 2 \cdot \color{blue}{\left(\frac{\cos k}{{k}^{2}} \cdot \frac{{\ell}^{2}}{{\sin k}^{2} \cdot t}\right)} \]
      2. unpow282.3%

        \[\leadsto 2 \cdot \left(\frac{\cos k}{\color{blue}{k \cdot k}} \cdot \frac{{\ell}^{2}}{{\sin k}^{2} \cdot t}\right) \]
      3. unpow282.3%

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

        \[\leadsto 2 \cdot \left(\frac{\cos k}{k \cdot k} \cdot \frac{\ell \cdot \ell}{\color{blue}{t \cdot {\sin k}^{2}}}\right) \]
      5. times-frac95.9%

        \[\leadsto 2 \cdot \left(\frac{\cos k}{k \cdot k} \cdot \color{blue}{\left(\frac{\ell}{t} \cdot \frac{\ell}{{\sin k}^{2}}\right)}\right) \]
    9. Simplified95.9%

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

    if 1.26000000000000003e85 < k

    1. Initial program 41.4%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
    2. Step-by-step derivation
      1. associate-*l*41.4%

        \[\leadsto \frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)\right)} \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      2. associate-*l*41.4%

        \[\leadsto \frac{2}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)\right)}} \]
      3. associate-/r*41.4%

        \[\leadsto \color{blue}{\frac{\frac{2}{\frac{{t}^{3}}{\ell \cdot \ell}}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)}} \]
      4. associate-/r/41.4%

        \[\leadsto \frac{\color{blue}{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      5. *-commutative41.4%

        \[\leadsto \frac{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}{\color{blue}{\left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right) \cdot \left(\sin k \cdot \tan k\right)}} \]
      6. times-frac41.3%

        \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k}} \]
      7. +-commutative41.3%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{\left({\left(\frac{k}{t}\right)}^{2} + 1\right)} - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      8. associate--l+54.0%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2} + \left(1 - 1\right)}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      9. metadata-eval54.0%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2} + \color{blue}{0}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      10. +-rgt-identity54.0%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2}}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      11. times-frac54.0%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \color{blue}{\left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    3. Simplified54.0%

      \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    4. Taylor expanded in t around 0 65.3%

      \[\leadsto \color{blue}{2 \cdot \frac{\cos k \cdot {\ell}^{2}}{{k}^{2} \cdot \left({\sin k}^{2} \cdot t\right)}} \]
    5. Step-by-step derivation
      1. associate-/r*65.5%

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

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

        \[\leadsto 2 \cdot \frac{\frac{\cos k \cdot \left(\ell \cdot \ell\right)}{\color{blue}{k \cdot k}}}{{\sin k}^{2} \cdot t} \]
      4. *-commutative65.5%

        \[\leadsto 2 \cdot \frac{\frac{\cos k \cdot \left(\ell \cdot \ell\right)}{k \cdot k}}{\color{blue}{t \cdot {\sin k}^{2}}} \]
    6. Simplified65.5%

      \[\leadsto \color{blue}{2 \cdot \frac{\frac{\cos k \cdot \left(\ell \cdot \ell\right)}{k \cdot k}}{t \cdot {\sin k}^{2}}} \]
    7. Taylor expanded in k around inf 65.5%

      \[\leadsto 2 \cdot \frac{\color{blue}{\frac{\cos k \cdot {\ell}^{2}}{{k}^{2}}}}{t \cdot {\sin k}^{2}} \]
    8. Step-by-step derivation
      1. unpow265.5%

        \[\leadsto 2 \cdot \frac{\frac{\cos k \cdot {\ell}^{2}}{\color{blue}{k \cdot k}}}{t \cdot {\sin k}^{2}} \]
      2. times-frac67.8%

        \[\leadsto 2 \cdot \frac{\color{blue}{\frac{\cos k}{k} \cdot \frac{{\ell}^{2}}{k}}}{t \cdot {\sin k}^{2}} \]
      3. unpow267.8%

        \[\leadsto 2 \cdot \frac{\frac{\cos k}{k} \cdot \frac{\color{blue}{\ell \cdot \ell}}{k}}{t \cdot {\sin k}^{2}} \]
      4. associate-/l*84.6%

        \[\leadsto 2 \cdot \frac{\frac{\cos k}{k} \cdot \color{blue}{\frac{\ell}{\frac{k}{\ell}}}}{t \cdot {\sin k}^{2}} \]
    9. Simplified84.6%

      \[\leadsto 2 \cdot \frac{\color{blue}{\frac{\cos k}{k} \cdot \frac{\ell}{\frac{k}{\ell}}}}{t \cdot {\sin k}^{2}} \]
    10. Step-by-step derivation
      1. associate-*r/98.1%

        \[\leadsto 2 \cdot \frac{\color{blue}{\frac{\frac{\cos k}{k} \cdot \ell}{\frac{k}{\ell}}}}{t \cdot {\sin k}^{2}} \]
    11. Applied egg-rr98.1%

      \[\leadsto 2 \cdot \frac{\color{blue}{\frac{\frac{\cos k}{k} \cdot \ell}{\frac{k}{\ell}}}}{t \cdot {\sin k}^{2}} \]
    12. Taylor expanded in k around inf 98.2%

      \[\leadsto 2 \cdot \frac{\frac{\color{blue}{\frac{\cos k \cdot \ell}{k}}}{\frac{k}{\ell}}}{t \cdot {\sin k}^{2}} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification89.4%

    \[\leadsto \begin{array}{l} \mathbf{if}\;k \leq 1.5 \cdot 10^{-89}:\\ \;\;\;\;\frac{2}{k \cdot \left(k \cdot t\right)} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)\\ \mathbf{elif}\;k \leq 1.26 \cdot 10^{+85}:\\ \;\;\;\;2 \cdot \left(\frac{\cos k}{k \cdot k} \cdot \left(\frac{\ell}{t} \cdot \frac{\ell}{{\sin k}^{2}}\right)\right)\\ \mathbf{else}:\\ \;\;\;\;2 \cdot \frac{\frac{\frac{\cos k \cdot \ell}{k}}{\frac{k}{\ell}}}{t \cdot {\sin k}^{2}}\\ \end{array} \]

Alternative 8: 88.6% accurate, 1.3× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := {\sin k}^{2}\\ \mathbf{if}\;k \leq 1.55 \cdot 10^{-89}:\\ \;\;\;\;\frac{2}{k \cdot \left(k \cdot t\right)} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)\\ \mathbf{elif}\;k \leq 1.52 \cdot 10^{+85}:\\ \;\;\;\;\frac{2}{\frac{k \cdot k}{\cos k} \cdot \left(\frac{t}{\ell} \cdot \frac{t_1}{\ell}\right)}\\ \mathbf{else}:\\ \;\;\;\;2 \cdot \frac{\frac{\frac{\cos k \cdot \ell}{k}}{\frac{k}{\ell}}}{t \cdot t_1}\\ \end{array} \end{array} \]
(FPCore (t l k)
 :precision binary64
 (let* ((t_1 (pow (sin k) 2.0)))
   (if (<= k 1.55e-89)
     (* (/ 2.0 (* k (* k t))) (* (/ l (sin k)) (/ l (tan k))))
     (if (<= k 1.52e+85)
       (/ 2.0 (* (/ (* k k) (cos k)) (* (/ t l) (/ t_1 l))))
       (* 2.0 (/ (/ (/ (* (cos k) l) k) (/ k l)) (* t t_1)))))))
double code(double t, double l, double k) {
	double t_1 = pow(sin(k), 2.0);
	double tmp;
	if (k <= 1.55e-89) {
		tmp = (2.0 / (k * (k * t))) * ((l / sin(k)) * (l / tan(k)));
	} else if (k <= 1.52e+85) {
		tmp = 2.0 / (((k * k) / cos(k)) * ((t / l) * (t_1 / l)));
	} else {
		tmp = 2.0 * ((((cos(k) * l) / k) / (k / l)) / (t * 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) :: tmp
    t_1 = sin(k) ** 2.0d0
    if (k <= 1.55d-89) then
        tmp = (2.0d0 / (k * (k * t))) * ((l / sin(k)) * (l / tan(k)))
    else if (k <= 1.52d+85) then
        tmp = 2.0d0 / (((k * k) / cos(k)) * ((t / l) * (t_1 / l)))
    else
        tmp = 2.0d0 * ((((cos(k) * l) / k) / (k / l)) / (t * t_1))
    end if
    code = tmp
end function
public static double code(double t, double l, double k) {
	double t_1 = Math.pow(Math.sin(k), 2.0);
	double tmp;
	if (k <= 1.55e-89) {
		tmp = (2.0 / (k * (k * t))) * ((l / Math.sin(k)) * (l / Math.tan(k)));
	} else if (k <= 1.52e+85) {
		tmp = 2.0 / (((k * k) / Math.cos(k)) * ((t / l) * (t_1 / l)));
	} else {
		tmp = 2.0 * ((((Math.cos(k) * l) / k) / (k / l)) / (t * t_1));
	}
	return tmp;
}
def code(t, l, k):
	t_1 = math.pow(math.sin(k), 2.0)
	tmp = 0
	if k <= 1.55e-89:
		tmp = (2.0 / (k * (k * t))) * ((l / math.sin(k)) * (l / math.tan(k)))
	elif k <= 1.52e+85:
		tmp = 2.0 / (((k * k) / math.cos(k)) * ((t / l) * (t_1 / l)))
	else:
		tmp = 2.0 * ((((math.cos(k) * l) / k) / (k / l)) / (t * t_1))
	return tmp
function code(t, l, k)
	t_1 = sin(k) ^ 2.0
	tmp = 0.0
	if (k <= 1.55e-89)
		tmp = Float64(Float64(2.0 / Float64(k * Float64(k * t))) * Float64(Float64(l / sin(k)) * Float64(l / tan(k))));
	elseif (k <= 1.52e+85)
		tmp = Float64(2.0 / Float64(Float64(Float64(k * k) / cos(k)) * Float64(Float64(t / l) * Float64(t_1 / l))));
	else
		tmp = Float64(2.0 * Float64(Float64(Float64(Float64(cos(k) * l) / k) / Float64(k / l)) / Float64(t * t_1)));
	end
	return tmp
end
function tmp_2 = code(t, l, k)
	t_1 = sin(k) ^ 2.0;
	tmp = 0.0;
	if (k <= 1.55e-89)
		tmp = (2.0 / (k * (k * t))) * ((l / sin(k)) * (l / tan(k)));
	elseif (k <= 1.52e+85)
		tmp = 2.0 / (((k * k) / cos(k)) * ((t / l) * (t_1 / l)));
	else
		tmp = 2.0 * ((((cos(k) * l) / k) / (k / l)) / (t * t_1));
	end
	tmp_2 = tmp;
end
code[t_, l_, k_] := Block[{t$95$1 = N[Power[N[Sin[k], $MachinePrecision], 2.0], $MachinePrecision]}, If[LessEqual[k, 1.55e-89], N[(N[(2.0 / N[(k * N[(k * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] * N[(N[(l / N[Sin[k], $MachinePrecision]), $MachinePrecision] * N[(l / N[Tan[k], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[k, 1.52e+85], N[(2.0 / N[(N[(N[(k * k), $MachinePrecision] / N[Cos[k], $MachinePrecision]), $MachinePrecision] * N[(N[(t / l), $MachinePrecision] * N[(t$95$1 / l), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(2.0 * N[(N[(N[(N[(N[Cos[k], $MachinePrecision] * l), $MachinePrecision] / k), $MachinePrecision] / N[(k / l), $MachinePrecision]), $MachinePrecision] / N[(t * t$95$1), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := {\sin k}^{2}\\
\mathbf{if}\;k \leq 1.55 \cdot 10^{-89}:\\
\;\;\;\;\frac{2}{k \cdot \left(k \cdot t\right)} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)\\

\mathbf{elif}\;k \leq 1.52 \cdot 10^{+85}:\\
\;\;\;\;\frac{2}{\frac{k \cdot k}{\cos k} \cdot \left(\frac{t}{\ell} \cdot \frac{t_1}{\ell}\right)}\\

\mathbf{else}:\\
\;\;\;\;2 \cdot \frac{\frac{\frac{\cos k \cdot \ell}{k}}{\frac{k}{\ell}}}{t \cdot t_1}\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if k < 1.54999999999999998e-89

    1. Initial program 34.3%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
    2. Step-by-step derivation
      1. associate-*l*34.2%

        \[\leadsto \frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)\right)} \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      2. associate-*l*34.2%

        \[\leadsto \frac{2}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)\right)}} \]
      3. associate-/r*34.2%

        \[\leadsto \color{blue}{\frac{\frac{2}{\frac{{t}^{3}}{\ell \cdot \ell}}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)}} \]
      4. associate-/r/34.2%

        \[\leadsto \frac{\color{blue}{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      5. *-commutative34.2%

        \[\leadsto \frac{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}{\color{blue}{\left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right) \cdot \left(\sin k \cdot \tan k\right)}} \]
      6. times-frac34.9%

        \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k}} \]
      7. +-commutative34.9%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{\left({\left(\frac{k}{t}\right)}^{2} + 1\right)} - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      8. associate--l+39.3%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2} + \left(1 - 1\right)}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      9. metadata-eval39.3%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2} + \color{blue}{0}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      10. +-rgt-identity39.3%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2}}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      11. times-frac46.3%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \color{blue}{\left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    3. Simplified46.3%

      \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    4. Taylor expanded in t around 0 79.2%

      \[\leadsto \color{blue}{\frac{2}{{k}^{2} \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    5. Step-by-step derivation
      1. unpow279.2%

        \[\leadsto \frac{2}{\color{blue}{\left(k \cdot k\right)} \cdot t} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    6. Simplified79.2%

      \[\leadsto \color{blue}{\frac{2}{\left(k \cdot k\right) \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    7. Taylor expanded in k around 0 79.2%

      \[\leadsto \frac{2}{\color{blue}{{k}^{2} \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    8. Step-by-step derivation
      1. unpow279.2%

        \[\leadsto \frac{2}{\color{blue}{\left(k \cdot k\right)} \cdot t} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
      2. associate-*r*83.0%

        \[\leadsto \frac{2}{\color{blue}{k \cdot \left(k \cdot t\right)}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    9. Simplified83.0%

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

    if 1.54999999999999998e-89 < k < 1.52e85

    1. Initial program 23.3%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
    2. Step-by-step derivation
      1. +-rgt-identity19.3%

        \[\leadsto \frac{2}{\color{blue}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right) + 0}} \]
      2. associate-*l*19.3%

        \[\leadsto \frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \left(\tan k \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)\right)} + 0} \]
      3. mul0-rgt21.5%

        \[\leadsto \frac{2}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \left(\tan k \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)\right) + \color{blue}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot 0}} \]
      4. distribute-lft-in23.4%

        \[\leadsto \frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \left(\tan k \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right) + 0\right)}} \]
      5. +-rgt-identity23.4%

        \[\leadsto \frac{2}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \color{blue}{\left(\tan k \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)\right)}} \]
      6. sub-neg23.4%

        \[\leadsto \frac{2}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \left(\tan k \cdot \color{blue}{\left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + \left(-1\right)\right)}\right)} \]
      7. +-commutative23.4%

        \[\leadsto \frac{2}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \left(\tan k \cdot \left(\color{blue}{\left({\left(\frac{k}{t}\right)}^{2} + 1\right)} + \left(-1\right)\right)\right)} \]
      8. associate-+l+34.8%

        \[\leadsto \frac{2}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \left(\tan k \cdot \color{blue}{\left({\left(\frac{k}{t}\right)}^{2} + \left(1 + \left(-1\right)\right)\right)}\right)} \]
      9. metadata-eval34.8%

        \[\leadsto \frac{2}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \left(\tan k \cdot \left({\left(\frac{k}{t}\right)}^{2} + \left(1 + \color{blue}{-1}\right)\right)\right)} \]
      10. metadata-eval34.8%

        \[\leadsto \frac{2}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \left(\tan k \cdot \left({\left(\frac{k}{t}\right)}^{2} + \color{blue}{0}\right)\right)} \]
      11. +-rgt-identity34.8%

        \[\leadsto \frac{2}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \left(\tan k \cdot \color{blue}{{\left(\frac{k}{t}\right)}^{2}}\right)} \]
    3. Simplified34.8%

      \[\leadsto \color{blue}{\frac{2}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \left(\tan k \cdot {\left(\frac{k}{t}\right)}^{2}\right)}} \]
    4. Step-by-step derivation
      1. unpow334.8%

        \[\leadsto \frac{\frac{2}{{\left(\frac{k}{t}\right)}^{2} + 0}}{\frac{\color{blue}{\left(t \cdot t\right) \cdot t}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)} \]
      2. times-frac38.6%

        \[\leadsto \frac{\frac{2}{{\left(\frac{k}{t}\right)}^{2} + 0}}{\color{blue}{\left(\frac{t \cdot t}{\ell} \cdot \frac{t}{\ell}\right)} \cdot \left(\sin k \cdot \tan k\right)} \]
    5. Applied egg-rr38.6%

      \[\leadsto \frac{2}{\left(\color{blue}{\left(\frac{t \cdot t}{\ell} \cdot \frac{t}{\ell}\right)} \cdot \sin k\right) \cdot \left(\tan k \cdot {\left(\frac{k}{t}\right)}^{2}\right)} \]
    6. Taylor expanded in t around 0 79.6%

      \[\leadsto \frac{2}{\color{blue}{\frac{{k}^{2} \cdot \left({\sin k}^{2} \cdot t\right)}{\cos k \cdot {\ell}^{2}}}} \]
    7. Step-by-step derivation
      1. times-frac82.9%

        \[\leadsto \frac{2}{\color{blue}{\frac{{k}^{2}}{\cos k} \cdot \frac{{\sin k}^{2} \cdot t}{{\ell}^{2}}}} \]
      2. unpow282.9%

        \[\leadsto \frac{2}{\frac{\color{blue}{k \cdot k}}{\cos k} \cdot \frac{{\sin k}^{2} \cdot t}{{\ell}^{2}}} \]
      3. *-commutative82.9%

        \[\leadsto \frac{2}{\frac{k \cdot k}{\cos k} \cdot \frac{\color{blue}{t \cdot {\sin k}^{2}}}{{\ell}^{2}}} \]
      4. unpow282.9%

        \[\leadsto \frac{2}{\frac{k \cdot k}{\cos k} \cdot \frac{t \cdot {\sin k}^{2}}{\color{blue}{\ell \cdot \ell}}} \]
      5. times-frac96.6%

        \[\leadsto \frac{2}{\frac{k \cdot k}{\cos k} \cdot \color{blue}{\left(\frac{t}{\ell} \cdot \frac{{\sin k}^{2}}{\ell}\right)}} \]
    8. Simplified96.6%

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

    if 1.52e85 < k

    1. Initial program 41.4%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
    2. Step-by-step derivation
      1. associate-*l*41.4%

        \[\leadsto \frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)\right)} \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      2. associate-*l*41.4%

        \[\leadsto \frac{2}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)\right)}} \]
      3. associate-/r*41.4%

        \[\leadsto \color{blue}{\frac{\frac{2}{\frac{{t}^{3}}{\ell \cdot \ell}}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)}} \]
      4. associate-/r/41.4%

        \[\leadsto \frac{\color{blue}{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      5. *-commutative41.4%

        \[\leadsto \frac{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}{\color{blue}{\left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right) \cdot \left(\sin k \cdot \tan k\right)}} \]
      6. times-frac41.3%

        \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k}} \]
      7. +-commutative41.3%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{\left({\left(\frac{k}{t}\right)}^{2} + 1\right)} - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      8. associate--l+54.0%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2} + \left(1 - 1\right)}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      9. metadata-eval54.0%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2} + \color{blue}{0}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      10. +-rgt-identity54.0%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2}}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      11. times-frac54.0%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \color{blue}{\left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    3. Simplified54.0%

      \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    4. Taylor expanded in t around 0 65.3%

      \[\leadsto \color{blue}{2 \cdot \frac{\cos k \cdot {\ell}^{2}}{{k}^{2} \cdot \left({\sin k}^{2} \cdot t\right)}} \]
    5. Step-by-step derivation
      1. associate-/r*65.5%

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

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

        \[\leadsto 2 \cdot \frac{\frac{\cos k \cdot \left(\ell \cdot \ell\right)}{\color{blue}{k \cdot k}}}{{\sin k}^{2} \cdot t} \]
      4. *-commutative65.5%

        \[\leadsto 2 \cdot \frac{\frac{\cos k \cdot \left(\ell \cdot \ell\right)}{k \cdot k}}{\color{blue}{t \cdot {\sin k}^{2}}} \]
    6. Simplified65.5%

      \[\leadsto \color{blue}{2 \cdot \frac{\frac{\cos k \cdot \left(\ell \cdot \ell\right)}{k \cdot k}}{t \cdot {\sin k}^{2}}} \]
    7. Taylor expanded in k around inf 65.5%

      \[\leadsto 2 \cdot \frac{\color{blue}{\frac{\cos k \cdot {\ell}^{2}}{{k}^{2}}}}{t \cdot {\sin k}^{2}} \]
    8. Step-by-step derivation
      1. unpow265.5%

        \[\leadsto 2 \cdot \frac{\frac{\cos k \cdot {\ell}^{2}}{\color{blue}{k \cdot k}}}{t \cdot {\sin k}^{2}} \]
      2. times-frac67.8%

        \[\leadsto 2 \cdot \frac{\color{blue}{\frac{\cos k}{k} \cdot \frac{{\ell}^{2}}{k}}}{t \cdot {\sin k}^{2}} \]
      3. unpow267.8%

        \[\leadsto 2 \cdot \frac{\frac{\cos k}{k} \cdot \frac{\color{blue}{\ell \cdot \ell}}{k}}{t \cdot {\sin k}^{2}} \]
      4. associate-/l*84.6%

        \[\leadsto 2 \cdot \frac{\frac{\cos k}{k} \cdot \color{blue}{\frac{\ell}{\frac{k}{\ell}}}}{t \cdot {\sin k}^{2}} \]
    9. Simplified84.6%

      \[\leadsto 2 \cdot \frac{\color{blue}{\frac{\cos k}{k} \cdot \frac{\ell}{\frac{k}{\ell}}}}{t \cdot {\sin k}^{2}} \]
    10. Step-by-step derivation
      1. associate-*r/98.1%

        \[\leadsto 2 \cdot \frac{\color{blue}{\frac{\frac{\cos k}{k} \cdot \ell}{\frac{k}{\ell}}}}{t \cdot {\sin k}^{2}} \]
    11. Applied egg-rr98.1%

      \[\leadsto 2 \cdot \frac{\color{blue}{\frac{\frac{\cos k}{k} \cdot \ell}{\frac{k}{\ell}}}}{t \cdot {\sin k}^{2}} \]
    12. Taylor expanded in k around inf 98.2%

      \[\leadsto 2 \cdot \frac{\frac{\color{blue}{\frac{\cos k \cdot \ell}{k}}}{\frac{k}{\ell}}}{t \cdot {\sin k}^{2}} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification89.5%

    \[\leadsto \begin{array}{l} \mathbf{if}\;k \leq 1.55 \cdot 10^{-89}:\\ \;\;\;\;\frac{2}{k \cdot \left(k \cdot t\right)} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)\\ \mathbf{elif}\;k \leq 1.52 \cdot 10^{+85}:\\ \;\;\;\;\frac{2}{\frac{k \cdot k}{\cos k} \cdot \left(\frac{t}{\ell} \cdot \frac{{\sin k}^{2}}{\ell}\right)}\\ \mathbf{else}:\\ \;\;\;\;2 \cdot \frac{\frac{\frac{\cos k \cdot \ell}{k}}{\frac{k}{\ell}}}{t \cdot {\sin k}^{2}}\\ \end{array} \]

Alternative 9: 76.2% accurate, 1.9× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;k \leq 1.85 \cdot 10^{-10}:\\ \;\;\;\;2 \cdot \left(\frac{\frac{\ell}{k}}{t} \cdot \frac{\frac{\ell}{k}}{k \cdot k}\right)\\ \mathbf{elif}\;k \leq 2.15 \cdot 10^{+132}:\\ \;\;\;\;\frac{2}{k \cdot \left(k \cdot t\right)} \cdot \frac{\frac{\ell \cdot \ell}{\sin k}}{\tan k}\\ \mathbf{else}:\\ \;\;\;\;\frac{2 \cdot \left(\frac{t}{k} \cdot \frac{t}{k}\right)}{\left(\frac{t}{\ell} \cdot \frac{t}{\frac{\ell}{t}}\right) \cdot \left(\sin k \cdot \tan k\right)}\\ \end{array} \end{array} \]
(FPCore (t l k)
 :precision binary64
 (if (<= k 1.85e-10)
   (* 2.0 (* (/ (/ l k) t) (/ (/ l k) (* k k))))
   (if (<= k 2.15e+132)
     (* (/ 2.0 (* k (* k t))) (/ (/ (* l l) (sin k)) (tan k)))
     (/
      (* 2.0 (* (/ t k) (/ t k)))
      (* (* (/ t l) (/ t (/ l t))) (* (sin k) (tan k)))))))
double code(double t, double l, double k) {
	double tmp;
	if (k <= 1.85e-10) {
		tmp = 2.0 * (((l / k) / t) * ((l / k) / (k * k)));
	} else if (k <= 2.15e+132) {
		tmp = (2.0 / (k * (k * t))) * (((l * l) / sin(k)) / tan(k));
	} else {
		tmp = (2.0 * ((t / k) * (t / k))) / (((t / l) * (t / (l / t))) * (sin(k) * tan(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 (k <= 1.85d-10) then
        tmp = 2.0d0 * (((l / k) / t) * ((l / k) / (k * k)))
    else if (k <= 2.15d+132) then
        tmp = (2.0d0 / (k * (k * t))) * (((l * l) / sin(k)) / tan(k))
    else
        tmp = (2.0d0 * ((t / k) * (t / k))) / (((t / l) * (t / (l / t))) * (sin(k) * tan(k)))
    end if
    code = tmp
end function
public static double code(double t, double l, double k) {
	double tmp;
	if (k <= 1.85e-10) {
		tmp = 2.0 * (((l / k) / t) * ((l / k) / (k * k)));
	} else if (k <= 2.15e+132) {
		tmp = (2.0 / (k * (k * t))) * (((l * l) / Math.sin(k)) / Math.tan(k));
	} else {
		tmp = (2.0 * ((t / k) * (t / k))) / (((t / l) * (t / (l / t))) * (Math.sin(k) * Math.tan(k)));
	}
	return tmp;
}
def code(t, l, k):
	tmp = 0
	if k <= 1.85e-10:
		tmp = 2.0 * (((l / k) / t) * ((l / k) / (k * k)))
	elif k <= 2.15e+132:
		tmp = (2.0 / (k * (k * t))) * (((l * l) / math.sin(k)) / math.tan(k))
	else:
		tmp = (2.0 * ((t / k) * (t / k))) / (((t / l) * (t / (l / t))) * (math.sin(k) * math.tan(k)))
	return tmp
function code(t, l, k)
	tmp = 0.0
	if (k <= 1.85e-10)
		tmp = Float64(2.0 * Float64(Float64(Float64(l / k) / t) * Float64(Float64(l / k) / Float64(k * k))));
	elseif (k <= 2.15e+132)
		tmp = Float64(Float64(2.0 / Float64(k * Float64(k * t))) * Float64(Float64(Float64(l * l) / sin(k)) / tan(k)));
	else
		tmp = Float64(Float64(2.0 * Float64(Float64(t / k) * Float64(t / k))) / Float64(Float64(Float64(t / l) * Float64(t / Float64(l / t))) * Float64(sin(k) * tan(k))));
	end
	return tmp
end
function tmp_2 = code(t, l, k)
	tmp = 0.0;
	if (k <= 1.85e-10)
		tmp = 2.0 * (((l / k) / t) * ((l / k) / (k * k)));
	elseif (k <= 2.15e+132)
		tmp = (2.0 / (k * (k * t))) * (((l * l) / sin(k)) / tan(k));
	else
		tmp = (2.0 * ((t / k) * (t / k))) / (((t / l) * (t / (l / t))) * (sin(k) * tan(k)));
	end
	tmp_2 = tmp;
end
code[t_, l_, k_] := If[LessEqual[k, 1.85e-10], N[(2.0 * N[(N[(N[(l / k), $MachinePrecision] / t), $MachinePrecision] * N[(N[(l / k), $MachinePrecision] / N[(k * k), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[k, 2.15e+132], N[(N[(2.0 / N[(k * N[(k * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] * N[(N[(N[(l * l), $MachinePrecision] / N[Sin[k], $MachinePrecision]), $MachinePrecision] / N[Tan[k], $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(2.0 * N[(N[(t / k), $MachinePrecision] * N[(t / k), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(N[(N[(t / l), $MachinePrecision] * N[(t / N[(l / t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] * N[(N[Sin[k], $MachinePrecision] * N[Tan[k], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;k \leq 1.85 \cdot 10^{-10}:\\
\;\;\;\;2 \cdot \left(\frac{\frac{\ell}{k}}{t} \cdot \frac{\frac{\ell}{k}}{k \cdot k}\right)\\

\mathbf{elif}\;k \leq 2.15 \cdot 10^{+132}:\\
\;\;\;\;\frac{2}{k \cdot \left(k \cdot t\right)} \cdot \frac{\frac{\ell \cdot \ell}{\sin k}}{\tan k}\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if k < 1.85000000000000007e-10

    1. Initial program 31.4%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
    2. Step-by-step derivation
      1. associate-*l*31.3%

        \[\leadsto \frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)\right)} \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      2. associate-*l*31.3%

        \[\leadsto \frac{2}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)\right)}} \]
      3. associate-/r*31.3%

        \[\leadsto \color{blue}{\frac{\frac{2}{\frac{{t}^{3}}{\ell \cdot \ell}}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)}} \]
      4. associate-/r/31.3%

        \[\leadsto \frac{\color{blue}{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      5. *-commutative31.3%

        \[\leadsto \frac{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}{\color{blue}{\left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right) \cdot \left(\sin k \cdot \tan k\right)}} \]
      6. times-frac31.9%

        \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k}} \]
      7. +-commutative31.9%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{\left({\left(\frac{k}{t}\right)}^{2} + 1\right)} - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      8. associate--l+37.4%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2} + \left(1 - 1\right)}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      9. metadata-eval37.4%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2} + \color{blue}{0}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      10. +-rgt-identity37.4%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2}}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      11. times-frac44.1%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \color{blue}{\left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    3. Simplified44.1%

      \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    4. Taylor expanded in t around 0 66.3%

      \[\leadsto \color{blue}{2 \cdot \frac{\cos k \cdot {\ell}^{2}}{{k}^{2} \cdot \left({\sin k}^{2} \cdot t\right)}} \]
    5. Step-by-step derivation
      1. associate-/r*68.1%

        \[\leadsto 2 \cdot \color{blue}{\frac{\frac{\cos k \cdot {\ell}^{2}}{{k}^{2}}}{{\sin k}^{2} \cdot t}} \]
      2. unpow268.1%

        \[\leadsto 2 \cdot \frac{\frac{\cos k \cdot \color{blue}{\left(\ell \cdot \ell\right)}}{{k}^{2}}}{{\sin k}^{2} \cdot t} \]
      3. unpow268.1%

        \[\leadsto 2 \cdot \frac{\frac{\cos k \cdot \left(\ell \cdot \ell\right)}{\color{blue}{k \cdot k}}}{{\sin k}^{2} \cdot t} \]
      4. *-commutative68.1%

        \[\leadsto 2 \cdot \frac{\frac{\cos k \cdot \left(\ell \cdot \ell\right)}{k \cdot k}}{\color{blue}{t \cdot {\sin k}^{2}}} \]
    6. Simplified68.1%

      \[\leadsto \color{blue}{2 \cdot \frac{\frac{\cos k \cdot \left(\ell \cdot \ell\right)}{k \cdot k}}{t \cdot {\sin k}^{2}}} \]
    7. Taylor expanded in k around 0 61.4%

      \[\leadsto 2 \cdot \frac{\frac{\cos k \cdot \left(\ell \cdot \ell\right)}{k \cdot k}}{t \cdot \color{blue}{{k}^{2}}} \]
    8. Step-by-step derivation
      1. unpow261.4%

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

      \[\leadsto 2 \cdot \frac{\frac{\cos k \cdot \left(\ell \cdot \ell\right)}{k \cdot k}}{t \cdot \color{blue}{\left(k \cdot k\right)}} \]
    10. Taylor expanded in k around 0 60.5%

      \[\leadsto 2 \cdot \frac{\color{blue}{\frac{{\ell}^{2}}{{k}^{2}}}}{t \cdot \left(k \cdot k\right)} \]
    11. Step-by-step derivation
      1. unpow260.5%

        \[\leadsto 2 \cdot \frac{\frac{\color{blue}{\ell \cdot \ell}}{{k}^{2}}}{t \cdot \left(k \cdot k\right)} \]
      2. unpow260.5%

        \[\leadsto 2 \cdot \frac{\frac{\ell \cdot \ell}{\color{blue}{k \cdot k}}}{t \cdot \left(k \cdot k\right)} \]
      3. times-frac72.4%

        \[\leadsto 2 \cdot \frac{\color{blue}{\frac{\ell}{k} \cdot \frac{\ell}{k}}}{t \cdot \left(k \cdot k\right)} \]
    12. Simplified72.4%

      \[\leadsto 2 \cdot \frac{\color{blue}{\frac{\ell}{k} \cdot \frac{\ell}{k}}}{t \cdot \left(k \cdot k\right)} \]
    13. Step-by-step derivation
      1. times-frac76.3%

        \[\leadsto 2 \cdot \color{blue}{\left(\frac{\frac{\ell}{k}}{t} \cdot \frac{\frac{\ell}{k}}{k \cdot k}\right)} \]
    14. Applied egg-rr76.3%

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

    if 1.85000000000000007e-10 < k < 2.14999999999999991e132

    1. Initial program 34.2%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
    2. Step-by-step derivation
      1. associate-*l*34.3%

        \[\leadsto \frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)\right)} \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      2. associate-*l*34.3%

        \[\leadsto \frac{2}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)\right)}} \]
      3. associate-/r*34.2%

        \[\leadsto \color{blue}{\frac{\frac{2}{\frac{{t}^{3}}{\ell \cdot \ell}}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)}} \]
      4. associate-/r/34.3%

        \[\leadsto \frac{\color{blue}{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      5. *-commutative34.3%

        \[\leadsto \frac{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}{\color{blue}{\left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right) \cdot \left(\sin k \cdot \tan k\right)}} \]
      6. times-frac34.3%

        \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k}} \]
      7. +-commutative34.3%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{\left({\left(\frac{k}{t}\right)}^{2} + 1\right)} - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      8. associate--l+45.0%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2} + \left(1 - 1\right)}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      9. metadata-eval45.0%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2} + \color{blue}{0}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      10. +-rgt-identity45.0%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2}}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      11. times-frac44.9%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \color{blue}{\left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    3. Simplified44.9%

      \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    4. Taylor expanded in t around 0 92.0%

      \[\leadsto \color{blue}{\frac{2}{{k}^{2} \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    5. Step-by-step derivation
      1. unpow292.0%

        \[\leadsto \frac{2}{\color{blue}{\left(k \cdot k\right)} \cdot t} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    6. Simplified92.0%

      \[\leadsto \color{blue}{\frac{2}{\left(k \cdot k\right) \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    7. Step-by-step derivation
      1. associate-*l/92.1%

        \[\leadsto \color{blue}{\frac{2 \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)}{\left(k \cdot k\right) \cdot t}} \]
      2. associate-*l*92.2%

        \[\leadsto \frac{2 \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)}{\color{blue}{k \cdot \left(k \cdot t\right)}} \]
    8. Applied egg-rr92.2%

      \[\leadsto \color{blue}{\frac{2 \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)}{k \cdot \left(k \cdot t\right)}} \]
    9. Step-by-step derivation
      1. associate-*l/92.1%

        \[\leadsto \color{blue}{\frac{2}{k \cdot \left(k \cdot t\right)} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
      2. *-commutative92.1%

        \[\leadsto \color{blue}{\left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \cdot \frac{2}{k \cdot \left(k \cdot t\right)}} \]
      3. associate-*r/92.0%

        \[\leadsto \color{blue}{\frac{\frac{\ell}{\sin k} \cdot \ell}{\tan k}} \cdot \frac{2}{k \cdot \left(k \cdot t\right)} \]
      4. associate-*l/92.2%

        \[\leadsto \frac{\color{blue}{\frac{\ell \cdot \ell}{\sin k}}}{\tan k} \cdot \frac{2}{k \cdot \left(k \cdot t\right)} \]
    10. Simplified92.2%

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

    if 2.14999999999999991e132 < k

    1. Initial program 40.9%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
    2. Step-by-step derivation
      1. associate-/l/40.9%

        \[\leadsto \color{blue}{\frac{\frac{2}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1}}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k}} \]
      2. associate-*l*40.9%

        \[\leadsto \frac{\frac{2}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1}}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)}} \]
      3. +-commutative40.9%

        \[\leadsto \frac{\frac{2}{\color{blue}{\left({\left(\frac{k}{t}\right)}^{2} + 1\right)} - 1}}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)} \]
      4. associate--l+53.8%

        \[\leadsto \frac{\frac{2}{\color{blue}{{\left(\frac{k}{t}\right)}^{2} + \left(1 - 1\right)}}}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)} \]
      5. metadata-eval53.8%

        \[\leadsto \frac{\frac{2}{{\left(\frac{k}{t}\right)}^{2} + \color{blue}{0}}}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)} \]
    3. Simplified53.8%

      \[\leadsto \color{blue}{\frac{\frac{2}{{\left(\frac{k}{t}\right)}^{2} + 0}}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)}} \]
    4. Step-by-step derivation
      1. unpow353.8%

        \[\leadsto \frac{\frac{2}{{\left(\frac{k}{t}\right)}^{2} + 0}}{\frac{\color{blue}{\left(t \cdot t\right) \cdot t}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)} \]
      2. times-frac65.5%

        \[\leadsto \frac{\frac{2}{{\left(\frac{k}{t}\right)}^{2} + 0}}{\color{blue}{\left(\frac{t \cdot t}{\ell} \cdot \frac{t}{\ell}\right)} \cdot \left(\sin k \cdot \tan k\right)} \]
    5. Applied egg-rr65.5%

      \[\leadsto \frac{\frac{2}{{\left(\frac{k}{t}\right)}^{2} + 0}}{\color{blue}{\left(\frac{t \cdot t}{\ell} \cdot \frac{t}{\ell}\right)} \cdot \left(\sin k \cdot \tan k\right)} \]
    6. Taylor expanded in k around 0 28.2%

      \[\leadsto \frac{\color{blue}{2 \cdot \frac{{t}^{2}}{{k}^{2}}}}{\left(\frac{t \cdot t}{\ell} \cdot \frac{t}{\ell}\right) \cdot \left(\sin k \cdot \tan k\right)} \]
    7. Step-by-step derivation
      1. unpow228.2%

        \[\leadsto \frac{2 \cdot \frac{\color{blue}{t \cdot t}}{{k}^{2}}}{\left(\frac{t \cdot t}{\ell} \cdot \frac{t}{\ell}\right) \cdot \left(\sin k \cdot \tan k\right)} \]
      2. unpow228.2%

        \[\leadsto \frac{2 \cdot \frac{t \cdot t}{\color{blue}{k \cdot k}}}{\left(\frac{t \cdot t}{\ell} \cdot \frac{t}{\ell}\right) \cdot \left(\sin k \cdot \tan k\right)} \]
    8. Simplified28.2%

      \[\leadsto \frac{\color{blue}{2 \cdot \frac{t \cdot t}{k \cdot k}}}{\left(\frac{t \cdot t}{\ell} \cdot \frac{t}{\ell}\right) \cdot \left(\sin k \cdot \tan k\right)} \]
    9. Taylor expanded in t around 0 28.2%

      \[\leadsto \frac{2 \cdot \color{blue}{\frac{{t}^{2}}{{k}^{2}}}}{\left(\frac{t \cdot t}{\ell} \cdot \frac{t}{\ell}\right) \cdot \left(\sin k \cdot \tan k\right)} \]
    10. Step-by-step derivation
      1. unpow228.2%

        \[\leadsto \frac{2 \cdot \frac{\color{blue}{t \cdot t}}{{k}^{2}}}{\left(\frac{t \cdot t}{\ell} \cdot \frac{t}{\ell}\right) \cdot \left(\sin k \cdot \tan k\right)} \]
      2. unpow228.2%

        \[\leadsto \frac{2 \cdot \frac{t \cdot t}{\color{blue}{k \cdot k}}}{\left(\frac{t \cdot t}{\ell} \cdot \frac{t}{\ell}\right) \cdot \left(\sin k \cdot \tan k\right)} \]
      3. times-frac65.5%

        \[\leadsto \frac{2 \cdot \color{blue}{\left(\frac{t}{k} \cdot \frac{t}{k}\right)}}{\left(\frac{t \cdot t}{\ell} \cdot \frac{t}{\ell}\right) \cdot \left(\sin k \cdot \tan k\right)} \]
    11. Simplified65.5%

      \[\leadsto \frac{2 \cdot \color{blue}{\left(\frac{t}{k} \cdot \frac{t}{k}\right)}}{\left(\frac{t \cdot t}{\ell} \cdot \frac{t}{\ell}\right) \cdot \left(\sin k \cdot \tan k\right)} \]
    12. Taylor expanded in t around 0 65.5%

      \[\leadsto \frac{2 \cdot \left(\frac{t}{k} \cdot \frac{t}{k}\right)}{\left(\color{blue}{\frac{{t}^{2}}{\ell}} \cdot \frac{t}{\ell}\right) \cdot \left(\sin k \cdot \tan k\right)} \]
    13. Step-by-step derivation
      1. unpow265.5%

        \[\leadsto \frac{2 \cdot \left(\frac{t}{k} \cdot \frac{t}{k}\right)}{\left(\frac{\color{blue}{t \cdot t}}{\ell} \cdot \frac{t}{\ell}\right) \cdot \left(\sin k \cdot \tan k\right)} \]
      2. associate-/l*79.6%

        \[\leadsto \frac{2 \cdot \left(\frac{t}{k} \cdot \frac{t}{k}\right)}{\left(\color{blue}{\frac{t}{\frac{\ell}{t}}} \cdot \frac{t}{\ell}\right) \cdot \left(\sin k \cdot \tan k\right)} \]
    14. Simplified79.6%

      \[\leadsto \frac{2 \cdot \left(\frac{t}{k} \cdot \frac{t}{k}\right)}{\left(\color{blue}{\frac{t}{\frac{\ell}{t}}} \cdot \frac{t}{\ell}\right) \cdot \left(\sin k \cdot \tan k\right)} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification79.3%

    \[\leadsto \begin{array}{l} \mathbf{if}\;k \leq 1.85 \cdot 10^{-10}:\\ \;\;\;\;2 \cdot \left(\frac{\frac{\ell}{k}}{t} \cdot \frac{\frac{\ell}{k}}{k \cdot k}\right)\\ \mathbf{elif}\;k \leq 2.15 \cdot 10^{+132}:\\ \;\;\;\;\frac{2}{k \cdot \left(k \cdot t\right)} \cdot \frac{\frac{\ell \cdot \ell}{\sin k}}{\tan k}\\ \mathbf{else}:\\ \;\;\;\;\frac{2 \cdot \left(\frac{t}{k} \cdot \frac{t}{k}\right)}{\left(\frac{t}{\ell} \cdot \frac{t}{\frac{\ell}{t}}\right) \cdot \left(\sin k \cdot \tan k\right)}\\ \end{array} \]

Alternative 10: 77.9% accurate, 1.9× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;k \leq 1.85 \cdot 10^{-10}:\\ \;\;\;\;2 \cdot \left(\frac{\frac{\ell}{k}}{t} \cdot \frac{\frac{\ell}{k}}{k \cdot k}\right)\\ \mathbf{elif}\;k \leq 6 \cdot 10^{+197}:\\ \;\;\;\;\frac{2}{k \cdot \left(k \cdot t\right)} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)\\ \mathbf{else}:\\ \;\;\;\;2 \cdot \frac{\frac{\ell}{k} \cdot \frac{\ell}{k}}{t \cdot {\sin k}^{2}}\\ \end{array} \end{array} \]
(FPCore (t l k)
 :precision binary64
 (if (<= k 1.85e-10)
   (* 2.0 (* (/ (/ l k) t) (/ (/ l k) (* k k))))
   (if (<= k 6e+197)
     (* (/ 2.0 (* k (* k t))) (* (/ l (sin k)) (/ l (tan k))))
     (* 2.0 (/ (* (/ l k) (/ l k)) (* t (pow (sin k) 2.0)))))))
double code(double t, double l, double k) {
	double tmp;
	if (k <= 1.85e-10) {
		tmp = 2.0 * (((l / k) / t) * ((l / k) / (k * k)));
	} else if (k <= 6e+197) {
		tmp = (2.0 / (k * (k * t))) * ((l / sin(k)) * (l / tan(k)));
	} else {
		tmp = 2.0 * (((l / k) * (l / k)) / (t * 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 <= 1.85d-10) then
        tmp = 2.0d0 * (((l / k) / t) * ((l / k) / (k * k)))
    else if (k <= 6d+197) then
        tmp = (2.0d0 / (k * (k * t))) * ((l / sin(k)) * (l / tan(k)))
    else
        tmp = 2.0d0 * (((l / k) * (l / k)) / (t * (sin(k) ** 2.0d0)))
    end if
    code = tmp
end function
public static double code(double t, double l, double k) {
	double tmp;
	if (k <= 1.85e-10) {
		tmp = 2.0 * (((l / k) / t) * ((l / k) / (k * k)));
	} else if (k <= 6e+197) {
		tmp = (2.0 / (k * (k * t))) * ((l / Math.sin(k)) * (l / Math.tan(k)));
	} else {
		tmp = 2.0 * (((l / k) * (l / k)) / (t * Math.pow(Math.sin(k), 2.0)));
	}
	return tmp;
}
def code(t, l, k):
	tmp = 0
	if k <= 1.85e-10:
		tmp = 2.0 * (((l / k) / t) * ((l / k) / (k * k)))
	elif k <= 6e+197:
		tmp = (2.0 / (k * (k * t))) * ((l / math.sin(k)) * (l / math.tan(k)))
	else:
		tmp = 2.0 * (((l / k) * (l / k)) / (t * math.pow(math.sin(k), 2.0)))
	return tmp
function code(t, l, k)
	tmp = 0.0
	if (k <= 1.85e-10)
		tmp = Float64(2.0 * Float64(Float64(Float64(l / k) / t) * Float64(Float64(l / k) / Float64(k * k))));
	elseif (k <= 6e+197)
		tmp = Float64(Float64(2.0 / Float64(k * Float64(k * t))) * Float64(Float64(l / sin(k)) * Float64(l / tan(k))));
	else
		tmp = Float64(2.0 * Float64(Float64(Float64(l / k) * Float64(l / k)) / Float64(t * (sin(k) ^ 2.0))));
	end
	return tmp
end
function tmp_2 = code(t, l, k)
	tmp = 0.0;
	if (k <= 1.85e-10)
		tmp = 2.0 * (((l / k) / t) * ((l / k) / (k * k)));
	elseif (k <= 6e+197)
		tmp = (2.0 / (k * (k * t))) * ((l / sin(k)) * (l / tan(k)));
	else
		tmp = 2.0 * (((l / k) * (l / k)) / (t * (sin(k) ^ 2.0)));
	end
	tmp_2 = tmp;
end
code[t_, l_, k_] := If[LessEqual[k, 1.85e-10], N[(2.0 * N[(N[(N[(l / k), $MachinePrecision] / t), $MachinePrecision] * N[(N[(l / k), $MachinePrecision] / N[(k * k), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[k, 6e+197], N[(N[(2.0 / N[(k * N[(k * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] * N[(N[(l / N[Sin[k], $MachinePrecision]), $MachinePrecision] * N[(l / N[Tan[k], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(2.0 * N[(N[(N[(l / k), $MachinePrecision] * N[(l / k), $MachinePrecision]), $MachinePrecision] / N[(t * N[Power[N[Sin[k], $MachinePrecision], 2.0], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;k \leq 1.85 \cdot 10^{-10}:\\
\;\;\;\;2 \cdot \left(\frac{\frac{\ell}{k}}{t} \cdot \frac{\frac{\ell}{k}}{k \cdot k}\right)\\

\mathbf{elif}\;k \leq 6 \cdot 10^{+197}:\\
\;\;\;\;\frac{2}{k \cdot \left(k \cdot t\right)} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)\\

\mathbf{else}:\\
\;\;\;\;2 \cdot \frac{\frac{\ell}{k} \cdot \frac{\ell}{k}}{t \cdot {\sin k}^{2}}\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if k < 1.85000000000000007e-10

    1. Initial program 31.4%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
    2. Step-by-step derivation
      1. associate-*l*31.3%

        \[\leadsto \frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)\right)} \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      2. associate-*l*31.3%

        \[\leadsto \frac{2}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)\right)}} \]
      3. associate-/r*31.3%

        \[\leadsto \color{blue}{\frac{\frac{2}{\frac{{t}^{3}}{\ell \cdot \ell}}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)}} \]
      4. associate-/r/31.3%

        \[\leadsto \frac{\color{blue}{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      5. *-commutative31.3%

        \[\leadsto \frac{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}{\color{blue}{\left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right) \cdot \left(\sin k \cdot \tan k\right)}} \]
      6. times-frac31.9%

        \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k}} \]
      7. +-commutative31.9%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{\left({\left(\frac{k}{t}\right)}^{2} + 1\right)} - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      8. associate--l+37.4%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2} + \left(1 - 1\right)}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      9. metadata-eval37.4%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2} + \color{blue}{0}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      10. +-rgt-identity37.4%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2}}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      11. times-frac44.1%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \color{blue}{\left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    3. Simplified44.1%

      \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    4. Taylor expanded in t around 0 66.3%

      \[\leadsto \color{blue}{2 \cdot \frac{\cos k \cdot {\ell}^{2}}{{k}^{2} \cdot \left({\sin k}^{2} \cdot t\right)}} \]
    5. Step-by-step derivation
      1. associate-/r*68.1%

        \[\leadsto 2 \cdot \color{blue}{\frac{\frac{\cos k \cdot {\ell}^{2}}{{k}^{2}}}{{\sin k}^{2} \cdot t}} \]
      2. unpow268.1%

        \[\leadsto 2 \cdot \frac{\frac{\cos k \cdot \color{blue}{\left(\ell \cdot \ell\right)}}{{k}^{2}}}{{\sin k}^{2} \cdot t} \]
      3. unpow268.1%

        \[\leadsto 2 \cdot \frac{\frac{\cos k \cdot \left(\ell \cdot \ell\right)}{\color{blue}{k \cdot k}}}{{\sin k}^{2} \cdot t} \]
      4. *-commutative68.1%

        \[\leadsto 2 \cdot \frac{\frac{\cos k \cdot \left(\ell \cdot \ell\right)}{k \cdot k}}{\color{blue}{t \cdot {\sin k}^{2}}} \]
    6. Simplified68.1%

      \[\leadsto \color{blue}{2 \cdot \frac{\frac{\cos k \cdot \left(\ell \cdot \ell\right)}{k \cdot k}}{t \cdot {\sin k}^{2}}} \]
    7. Taylor expanded in k around 0 61.4%

      \[\leadsto 2 \cdot \frac{\frac{\cos k \cdot \left(\ell \cdot \ell\right)}{k \cdot k}}{t \cdot \color{blue}{{k}^{2}}} \]
    8. Step-by-step derivation
      1. unpow261.4%

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

      \[\leadsto 2 \cdot \frac{\frac{\cos k \cdot \left(\ell \cdot \ell\right)}{k \cdot k}}{t \cdot \color{blue}{\left(k \cdot k\right)}} \]
    10. Taylor expanded in k around 0 60.5%

      \[\leadsto 2 \cdot \frac{\color{blue}{\frac{{\ell}^{2}}{{k}^{2}}}}{t \cdot \left(k \cdot k\right)} \]
    11. Step-by-step derivation
      1. unpow260.5%

        \[\leadsto 2 \cdot \frac{\frac{\color{blue}{\ell \cdot \ell}}{{k}^{2}}}{t \cdot \left(k \cdot k\right)} \]
      2. unpow260.5%

        \[\leadsto 2 \cdot \frac{\frac{\ell \cdot \ell}{\color{blue}{k \cdot k}}}{t \cdot \left(k \cdot k\right)} \]
      3. times-frac72.4%

        \[\leadsto 2 \cdot \frac{\color{blue}{\frac{\ell}{k} \cdot \frac{\ell}{k}}}{t \cdot \left(k \cdot k\right)} \]
    12. Simplified72.4%

      \[\leadsto 2 \cdot \frac{\color{blue}{\frac{\ell}{k} \cdot \frac{\ell}{k}}}{t \cdot \left(k \cdot k\right)} \]
    13. Step-by-step derivation
      1. times-frac76.3%

        \[\leadsto 2 \cdot \color{blue}{\left(\frac{\frac{\ell}{k}}{t} \cdot \frac{\frac{\ell}{k}}{k \cdot k}\right)} \]
    14. Applied egg-rr76.3%

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

    if 1.85000000000000007e-10 < k < 6.0000000000000004e197

    1. Initial program 32.9%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
    2. Step-by-step derivation
      1. associate-*l*32.9%

        \[\leadsto \frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)\right)} \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      2. associate-*l*32.9%

        \[\leadsto \frac{2}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)\right)}} \]
      3. associate-/r*32.8%

        \[\leadsto \color{blue}{\frac{\frac{2}{\frac{{t}^{3}}{\ell \cdot \ell}}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)}} \]
      4. associate-/r/32.9%

        \[\leadsto \frac{\color{blue}{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      5. *-commutative32.9%

        \[\leadsto \frac{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}{\color{blue}{\left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right) \cdot \left(\sin k \cdot \tan k\right)}} \]
      6. times-frac32.8%

        \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k}} \]
      7. +-commutative32.8%

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

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2} + \left(1 - 1\right)}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      9. metadata-eval49.2%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2} + \color{blue}{0}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      10. +-rgt-identity49.2%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2}}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      11. times-frac49.2%

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

      \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    4. Taylor expanded in t around 0 83.6%

      \[\leadsto \color{blue}{\frac{2}{{k}^{2} \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    5. Step-by-step derivation
      1. unpow283.6%

        \[\leadsto \frac{2}{\color{blue}{\left(k \cdot k\right)} \cdot t} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    6. Simplified83.6%

      \[\leadsto \color{blue}{\frac{2}{\left(k \cdot k\right) \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    7. Taylor expanded in k around 0 83.6%

      \[\leadsto \frac{2}{\color{blue}{{k}^{2} \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    8. Step-by-step derivation
      1. unpow283.6%

        \[\leadsto \frac{2}{\color{blue}{\left(k \cdot k\right)} \cdot t} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
      2. associate-*r*83.6%

        \[\leadsto \frac{2}{\color{blue}{k \cdot \left(k \cdot t\right)}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    9. Simplified83.6%

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

    if 6.0000000000000004e197 < k

    1. Initial program 45.9%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
    2. Step-by-step derivation
      1. associate-*l*45.9%

        \[\leadsto \frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)\right)} \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      2. associate-*l*45.9%

        \[\leadsto \frac{2}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)\right)}} \]
      3. associate-/r*45.9%

        \[\leadsto \color{blue}{\frac{\frac{2}{\frac{{t}^{3}}{\ell \cdot \ell}}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)}} \]
      4. associate-/r/45.9%

        \[\leadsto \frac{\color{blue}{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      5. *-commutative45.9%

        \[\leadsto \frac{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}{\color{blue}{\left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right) \cdot \left(\sin k \cdot \tan k\right)}} \]
      6. times-frac45.9%

        \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k}} \]
      7. +-commutative45.9%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{\left({\left(\frac{k}{t}\right)}^{2} + 1\right)} - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      8. associate--l+51.4%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2} + \left(1 - 1\right)}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      9. metadata-eval51.4%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2} + \color{blue}{0}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      10. +-rgt-identity51.4%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2}}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      11. times-frac51.4%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \color{blue}{\left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    3. Simplified51.4%

      \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    4. Taylor expanded in t around 0 59.7%

      \[\leadsto \color{blue}{2 \cdot \frac{\cos k \cdot {\ell}^{2}}{{k}^{2} \cdot \left({\sin k}^{2} \cdot t\right)}} \]
    5. Step-by-step derivation
      1. associate-/r*59.7%

        \[\leadsto 2 \cdot \color{blue}{\frac{\frac{\cos k \cdot {\ell}^{2}}{{k}^{2}}}{{\sin k}^{2} \cdot t}} \]
      2. unpow259.7%

        \[\leadsto 2 \cdot \frac{\frac{\cos k \cdot \color{blue}{\left(\ell \cdot \ell\right)}}{{k}^{2}}}{{\sin k}^{2} \cdot t} \]
      3. unpow259.7%

        \[\leadsto 2 \cdot \frac{\frac{\cos k \cdot \left(\ell \cdot \ell\right)}{\color{blue}{k \cdot k}}}{{\sin k}^{2} \cdot t} \]
      4. *-commutative59.7%

        \[\leadsto 2 \cdot \frac{\frac{\cos k \cdot \left(\ell \cdot \ell\right)}{k \cdot k}}{\color{blue}{t \cdot {\sin k}^{2}}} \]
    6. Simplified59.7%

      \[\leadsto \color{blue}{2 \cdot \frac{\frac{\cos k \cdot \left(\ell \cdot \ell\right)}{k \cdot k}}{t \cdot {\sin k}^{2}}} \]
    7. Taylor expanded in k around 0 59.7%

      \[\leadsto 2 \cdot \frac{\color{blue}{\frac{{\ell}^{2}}{{k}^{2}}}}{t \cdot {\sin k}^{2}} \]
    8. Step-by-step derivation
      1. unpow259.7%

        \[\leadsto 2 \cdot \frac{\frac{\color{blue}{\ell \cdot \ell}}{{k}^{2}}}{t \cdot \left(k \cdot k\right)} \]
      2. unpow259.7%

        \[\leadsto 2 \cdot \frac{\frac{\ell \cdot \ell}{\color{blue}{k \cdot k}}}{t \cdot \left(k \cdot k\right)} \]
      3. times-frac66.3%

        \[\leadsto 2 \cdot \frac{\color{blue}{\frac{\ell}{k} \cdot \frac{\ell}{k}}}{t \cdot \left(k \cdot k\right)} \]
    9. Simplified69.8%

      \[\leadsto 2 \cdot \frac{\color{blue}{\frac{\ell}{k} \cdot \frac{\ell}{k}}}{t \cdot {\sin k}^{2}} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification76.9%

    \[\leadsto \begin{array}{l} \mathbf{if}\;k \leq 1.85 \cdot 10^{-10}:\\ \;\;\;\;2 \cdot \left(\frac{\frac{\ell}{k}}{t} \cdot \frac{\frac{\ell}{k}}{k \cdot k}\right)\\ \mathbf{elif}\;k \leq 6 \cdot 10^{+197}:\\ \;\;\;\;\frac{2}{k \cdot \left(k \cdot t\right)} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)\\ \mathbf{else}:\\ \;\;\;\;2 \cdot \frac{\frac{\ell}{k} \cdot \frac{\ell}{k}}{t \cdot {\sin k}^{2}}\\ \end{array} \]

Alternative 11: 77.9% accurate, 1.9× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;k \leq 1.85 \cdot 10^{-10}:\\ \;\;\;\;2 \cdot \left(\frac{\frac{\ell}{k}}{t} \cdot \frac{\frac{\ell}{k}}{k \cdot k}\right)\\ \mathbf{elif}\;k \leq 7.2 \cdot 10^{+197}:\\ \;\;\;\;\frac{2}{k \cdot \left(k \cdot t\right)} \cdot \frac{\frac{\ell \cdot \ell}{\sin k}}{\tan k}\\ \mathbf{else}:\\ \;\;\;\;2 \cdot \frac{\frac{\ell}{k} \cdot \frac{\ell}{k}}{t \cdot {\sin k}^{2}}\\ \end{array} \end{array} \]
(FPCore (t l k)
 :precision binary64
 (if (<= k 1.85e-10)
   (* 2.0 (* (/ (/ l k) t) (/ (/ l k) (* k k))))
   (if (<= k 7.2e+197)
     (* (/ 2.0 (* k (* k t))) (/ (/ (* l l) (sin k)) (tan k)))
     (* 2.0 (/ (* (/ l k) (/ l k)) (* t (pow (sin k) 2.0)))))))
double code(double t, double l, double k) {
	double tmp;
	if (k <= 1.85e-10) {
		tmp = 2.0 * (((l / k) / t) * ((l / k) / (k * k)));
	} else if (k <= 7.2e+197) {
		tmp = (2.0 / (k * (k * t))) * (((l * l) / sin(k)) / tan(k));
	} else {
		tmp = 2.0 * (((l / k) * (l / k)) / (t * 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 <= 1.85d-10) then
        tmp = 2.0d0 * (((l / k) / t) * ((l / k) / (k * k)))
    else if (k <= 7.2d+197) then
        tmp = (2.0d0 / (k * (k * t))) * (((l * l) / sin(k)) / tan(k))
    else
        tmp = 2.0d0 * (((l / k) * (l / k)) / (t * (sin(k) ** 2.0d0)))
    end if
    code = tmp
end function
public static double code(double t, double l, double k) {
	double tmp;
	if (k <= 1.85e-10) {
		tmp = 2.0 * (((l / k) / t) * ((l / k) / (k * k)));
	} else if (k <= 7.2e+197) {
		tmp = (2.0 / (k * (k * t))) * (((l * l) / Math.sin(k)) / Math.tan(k));
	} else {
		tmp = 2.0 * (((l / k) * (l / k)) / (t * Math.pow(Math.sin(k), 2.0)));
	}
	return tmp;
}
def code(t, l, k):
	tmp = 0
	if k <= 1.85e-10:
		tmp = 2.0 * (((l / k) / t) * ((l / k) / (k * k)))
	elif k <= 7.2e+197:
		tmp = (2.0 / (k * (k * t))) * (((l * l) / math.sin(k)) / math.tan(k))
	else:
		tmp = 2.0 * (((l / k) * (l / k)) / (t * math.pow(math.sin(k), 2.0)))
	return tmp
function code(t, l, k)
	tmp = 0.0
	if (k <= 1.85e-10)
		tmp = Float64(2.0 * Float64(Float64(Float64(l / k) / t) * Float64(Float64(l / k) / Float64(k * k))));
	elseif (k <= 7.2e+197)
		tmp = Float64(Float64(2.0 / Float64(k * Float64(k * t))) * Float64(Float64(Float64(l * l) / sin(k)) / tan(k)));
	else
		tmp = Float64(2.0 * Float64(Float64(Float64(l / k) * Float64(l / k)) / Float64(t * (sin(k) ^ 2.0))));
	end
	return tmp
end
function tmp_2 = code(t, l, k)
	tmp = 0.0;
	if (k <= 1.85e-10)
		tmp = 2.0 * (((l / k) / t) * ((l / k) / (k * k)));
	elseif (k <= 7.2e+197)
		tmp = (2.0 / (k * (k * t))) * (((l * l) / sin(k)) / tan(k));
	else
		tmp = 2.0 * (((l / k) * (l / k)) / (t * (sin(k) ^ 2.0)));
	end
	tmp_2 = tmp;
end
code[t_, l_, k_] := If[LessEqual[k, 1.85e-10], N[(2.0 * N[(N[(N[(l / k), $MachinePrecision] / t), $MachinePrecision] * N[(N[(l / k), $MachinePrecision] / N[(k * k), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[k, 7.2e+197], N[(N[(2.0 / N[(k * N[(k * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] * N[(N[(N[(l * l), $MachinePrecision] / N[Sin[k], $MachinePrecision]), $MachinePrecision] / N[Tan[k], $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(2.0 * N[(N[(N[(l / k), $MachinePrecision] * N[(l / k), $MachinePrecision]), $MachinePrecision] / N[(t * N[Power[N[Sin[k], $MachinePrecision], 2.0], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;k \leq 1.85 \cdot 10^{-10}:\\
\;\;\;\;2 \cdot \left(\frac{\frac{\ell}{k}}{t} \cdot \frac{\frac{\ell}{k}}{k \cdot k}\right)\\

\mathbf{elif}\;k \leq 7.2 \cdot 10^{+197}:\\
\;\;\;\;\frac{2}{k \cdot \left(k \cdot t\right)} \cdot \frac{\frac{\ell \cdot \ell}{\sin k}}{\tan k}\\

\mathbf{else}:\\
\;\;\;\;2 \cdot \frac{\frac{\ell}{k} \cdot \frac{\ell}{k}}{t \cdot {\sin k}^{2}}\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if k < 1.85000000000000007e-10

    1. Initial program 31.4%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
    2. Step-by-step derivation
      1. associate-*l*31.3%

        \[\leadsto \frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)\right)} \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      2. associate-*l*31.3%

        \[\leadsto \frac{2}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)\right)}} \]
      3. associate-/r*31.3%

        \[\leadsto \color{blue}{\frac{\frac{2}{\frac{{t}^{3}}{\ell \cdot \ell}}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)}} \]
      4. associate-/r/31.3%

        \[\leadsto \frac{\color{blue}{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      5. *-commutative31.3%

        \[\leadsto \frac{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}{\color{blue}{\left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right) \cdot \left(\sin k \cdot \tan k\right)}} \]
      6. times-frac31.9%

        \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k}} \]
      7. +-commutative31.9%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{\left({\left(\frac{k}{t}\right)}^{2} + 1\right)} - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      8. associate--l+37.4%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2} + \left(1 - 1\right)}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      9. metadata-eval37.4%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2} + \color{blue}{0}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      10. +-rgt-identity37.4%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2}}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      11. times-frac44.1%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \color{blue}{\left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    3. Simplified44.1%

      \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    4. Taylor expanded in t around 0 66.3%

      \[\leadsto \color{blue}{2 \cdot \frac{\cos k \cdot {\ell}^{2}}{{k}^{2} \cdot \left({\sin k}^{2} \cdot t\right)}} \]
    5. Step-by-step derivation
      1. associate-/r*68.1%

        \[\leadsto 2 \cdot \color{blue}{\frac{\frac{\cos k \cdot {\ell}^{2}}{{k}^{2}}}{{\sin k}^{2} \cdot t}} \]
      2. unpow268.1%

        \[\leadsto 2 \cdot \frac{\frac{\cos k \cdot \color{blue}{\left(\ell \cdot \ell\right)}}{{k}^{2}}}{{\sin k}^{2} \cdot t} \]
      3. unpow268.1%

        \[\leadsto 2 \cdot \frac{\frac{\cos k \cdot \left(\ell \cdot \ell\right)}{\color{blue}{k \cdot k}}}{{\sin k}^{2} \cdot t} \]
      4. *-commutative68.1%

        \[\leadsto 2 \cdot \frac{\frac{\cos k \cdot \left(\ell \cdot \ell\right)}{k \cdot k}}{\color{blue}{t \cdot {\sin k}^{2}}} \]
    6. Simplified68.1%

      \[\leadsto \color{blue}{2 \cdot \frac{\frac{\cos k \cdot \left(\ell \cdot \ell\right)}{k \cdot k}}{t \cdot {\sin k}^{2}}} \]
    7. Taylor expanded in k around 0 61.4%

      \[\leadsto 2 \cdot \frac{\frac{\cos k \cdot \left(\ell \cdot \ell\right)}{k \cdot k}}{t \cdot \color{blue}{{k}^{2}}} \]
    8. Step-by-step derivation
      1. unpow261.4%

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

      \[\leadsto 2 \cdot \frac{\frac{\cos k \cdot \left(\ell \cdot \ell\right)}{k \cdot k}}{t \cdot \color{blue}{\left(k \cdot k\right)}} \]
    10. Taylor expanded in k around 0 60.5%

      \[\leadsto 2 \cdot \frac{\color{blue}{\frac{{\ell}^{2}}{{k}^{2}}}}{t \cdot \left(k \cdot k\right)} \]
    11. Step-by-step derivation
      1. unpow260.5%

        \[\leadsto 2 \cdot \frac{\frac{\color{blue}{\ell \cdot \ell}}{{k}^{2}}}{t \cdot \left(k \cdot k\right)} \]
      2. unpow260.5%

        \[\leadsto 2 \cdot \frac{\frac{\ell \cdot \ell}{\color{blue}{k \cdot k}}}{t \cdot \left(k \cdot k\right)} \]
      3. times-frac72.4%

        \[\leadsto 2 \cdot \frac{\color{blue}{\frac{\ell}{k} \cdot \frac{\ell}{k}}}{t \cdot \left(k \cdot k\right)} \]
    12. Simplified72.4%

      \[\leadsto 2 \cdot \frac{\color{blue}{\frac{\ell}{k} \cdot \frac{\ell}{k}}}{t \cdot \left(k \cdot k\right)} \]
    13. Step-by-step derivation
      1. times-frac76.3%

        \[\leadsto 2 \cdot \color{blue}{\left(\frac{\frac{\ell}{k}}{t} \cdot \frac{\frac{\ell}{k}}{k \cdot k}\right)} \]
    14. Applied egg-rr76.3%

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

    if 1.85000000000000007e-10 < k < 7.19999999999999965e197

    1. Initial program 32.9%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
    2. Step-by-step derivation
      1. associate-*l*32.9%

        \[\leadsto \frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)\right)} \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      2. associate-*l*32.9%

        \[\leadsto \frac{2}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)\right)}} \]
      3. associate-/r*32.8%

        \[\leadsto \color{blue}{\frac{\frac{2}{\frac{{t}^{3}}{\ell \cdot \ell}}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)}} \]
      4. associate-/r/32.9%

        \[\leadsto \frac{\color{blue}{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      5. *-commutative32.9%

        \[\leadsto \frac{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}{\color{blue}{\left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right) \cdot \left(\sin k \cdot \tan k\right)}} \]
      6. times-frac32.8%

        \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k}} \]
      7. +-commutative32.8%

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

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2} + \left(1 - 1\right)}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      9. metadata-eval49.2%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2} + \color{blue}{0}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      10. +-rgt-identity49.2%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2}}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      11. times-frac49.2%

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

      \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    4. Taylor expanded in t around 0 83.6%

      \[\leadsto \color{blue}{\frac{2}{{k}^{2} \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    5. Step-by-step derivation
      1. unpow283.6%

        \[\leadsto \frac{2}{\color{blue}{\left(k \cdot k\right)} \cdot t} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    6. Simplified83.6%

      \[\leadsto \color{blue}{\frac{2}{\left(k \cdot k\right) \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    7. Step-by-step derivation
      1. associate-*l/83.6%

        \[\leadsto \color{blue}{\frac{2 \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)}{\left(k \cdot k\right) \cdot t}} \]
      2. associate-*l*83.7%

        \[\leadsto \frac{2 \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)}{\color{blue}{k \cdot \left(k \cdot t\right)}} \]
    8. Applied egg-rr83.7%

      \[\leadsto \color{blue}{\frac{2 \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)}{k \cdot \left(k \cdot t\right)}} \]
    9. Step-by-step derivation
      1. associate-*l/83.6%

        \[\leadsto \color{blue}{\frac{2}{k \cdot \left(k \cdot t\right)} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
      2. *-commutative83.6%

        \[\leadsto \color{blue}{\left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \cdot \frac{2}{k \cdot \left(k \cdot t\right)}} \]
      3. associate-*r/83.6%

        \[\leadsto \color{blue}{\frac{\frac{\ell}{\sin k} \cdot \ell}{\tan k}} \cdot \frac{2}{k \cdot \left(k \cdot t\right)} \]
      4. associate-*l/83.7%

        \[\leadsto \frac{\color{blue}{\frac{\ell \cdot \ell}{\sin k}}}{\tan k} \cdot \frac{2}{k \cdot \left(k \cdot t\right)} \]
    10. Simplified83.7%

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

    if 7.19999999999999965e197 < k

    1. Initial program 45.9%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
    2. Step-by-step derivation
      1. associate-*l*45.9%

        \[\leadsto \frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)\right)} \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      2. associate-*l*45.9%

        \[\leadsto \frac{2}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)\right)}} \]
      3. associate-/r*45.9%

        \[\leadsto \color{blue}{\frac{\frac{2}{\frac{{t}^{3}}{\ell \cdot \ell}}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)}} \]
      4. associate-/r/45.9%

        \[\leadsto \frac{\color{blue}{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      5. *-commutative45.9%

        \[\leadsto \frac{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}{\color{blue}{\left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right) \cdot \left(\sin k \cdot \tan k\right)}} \]
      6. times-frac45.9%

        \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k}} \]
      7. +-commutative45.9%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{\left({\left(\frac{k}{t}\right)}^{2} + 1\right)} - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      8. associate--l+51.4%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2} + \left(1 - 1\right)}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      9. metadata-eval51.4%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2} + \color{blue}{0}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      10. +-rgt-identity51.4%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2}}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      11. times-frac51.4%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \color{blue}{\left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    3. Simplified51.4%

      \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    4. Taylor expanded in t around 0 59.7%

      \[\leadsto \color{blue}{2 \cdot \frac{\cos k \cdot {\ell}^{2}}{{k}^{2} \cdot \left({\sin k}^{2} \cdot t\right)}} \]
    5. Step-by-step derivation
      1. associate-/r*59.7%

        \[\leadsto 2 \cdot \color{blue}{\frac{\frac{\cos k \cdot {\ell}^{2}}{{k}^{2}}}{{\sin k}^{2} \cdot t}} \]
      2. unpow259.7%

        \[\leadsto 2 \cdot \frac{\frac{\cos k \cdot \color{blue}{\left(\ell \cdot \ell\right)}}{{k}^{2}}}{{\sin k}^{2} \cdot t} \]
      3. unpow259.7%

        \[\leadsto 2 \cdot \frac{\frac{\cos k \cdot \left(\ell \cdot \ell\right)}{\color{blue}{k \cdot k}}}{{\sin k}^{2} \cdot t} \]
      4. *-commutative59.7%

        \[\leadsto 2 \cdot \frac{\frac{\cos k \cdot \left(\ell \cdot \ell\right)}{k \cdot k}}{\color{blue}{t \cdot {\sin k}^{2}}} \]
    6. Simplified59.7%

      \[\leadsto \color{blue}{2 \cdot \frac{\frac{\cos k \cdot \left(\ell \cdot \ell\right)}{k \cdot k}}{t \cdot {\sin k}^{2}}} \]
    7. Taylor expanded in k around 0 59.7%

      \[\leadsto 2 \cdot \frac{\color{blue}{\frac{{\ell}^{2}}{{k}^{2}}}}{t \cdot {\sin k}^{2}} \]
    8. Step-by-step derivation
      1. unpow259.7%

        \[\leadsto 2 \cdot \frac{\frac{\color{blue}{\ell \cdot \ell}}{{k}^{2}}}{t \cdot \left(k \cdot k\right)} \]
      2. unpow259.7%

        \[\leadsto 2 \cdot \frac{\frac{\ell \cdot \ell}{\color{blue}{k \cdot k}}}{t \cdot \left(k \cdot k\right)} \]
      3. times-frac66.3%

        \[\leadsto 2 \cdot \frac{\color{blue}{\frac{\ell}{k} \cdot \frac{\ell}{k}}}{t \cdot \left(k \cdot k\right)} \]
    9. Simplified69.8%

      \[\leadsto 2 \cdot \frac{\color{blue}{\frac{\ell}{k} \cdot \frac{\ell}{k}}}{t \cdot {\sin k}^{2}} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification76.9%

    \[\leadsto \begin{array}{l} \mathbf{if}\;k \leq 1.85 \cdot 10^{-10}:\\ \;\;\;\;2 \cdot \left(\frac{\frac{\ell}{k}}{t} \cdot \frac{\frac{\ell}{k}}{k \cdot k}\right)\\ \mathbf{elif}\;k \leq 7.2 \cdot 10^{+197}:\\ \;\;\;\;\frac{2}{k \cdot \left(k \cdot t\right)} \cdot \frac{\frac{\ell \cdot \ell}{\sin k}}{\tan k}\\ \mathbf{else}:\\ \;\;\;\;2 \cdot \frac{\frac{\ell}{k} \cdot \frac{\ell}{k}}{t \cdot {\sin k}^{2}}\\ \end{array} \]

Alternative 12: 72.6% accurate, 3.5× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;k \leq 1.85 \cdot 10^{-10}:\\ \;\;\;\;2 \cdot \left(\frac{\frac{\ell}{k}}{t} \cdot \frac{\frac{\ell}{k}}{k \cdot k}\right)\\ \mathbf{else}:\\ \;\;\;\;2 \cdot \frac{\frac{\cos k}{k} \cdot \frac{\ell}{\frac{k}{\ell}}}{t \cdot \left(k \cdot k\right)}\\ \end{array} \end{array} \]
(FPCore (t l k)
 :precision binary64
 (if (<= k 1.85e-10)
   (* 2.0 (* (/ (/ l k) t) (/ (/ l k) (* k k))))
   (* 2.0 (/ (* (/ (cos k) k) (/ l (/ k l))) (* t (* k k))))))
double code(double t, double l, double k) {
	double tmp;
	if (k <= 1.85e-10) {
		tmp = 2.0 * (((l / k) / t) * ((l / k) / (k * k)));
	} else {
		tmp = 2.0 * (((cos(k) / k) * (l / (k / l))) / (t * (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 (k <= 1.85d-10) then
        tmp = 2.0d0 * (((l / k) / t) * ((l / k) / (k * k)))
    else
        tmp = 2.0d0 * (((cos(k) / k) * (l / (k / l))) / (t * (k * k)))
    end if
    code = tmp
end function
public static double code(double t, double l, double k) {
	double tmp;
	if (k <= 1.85e-10) {
		tmp = 2.0 * (((l / k) / t) * ((l / k) / (k * k)));
	} else {
		tmp = 2.0 * (((Math.cos(k) / k) * (l / (k / l))) / (t * (k * k)));
	}
	return tmp;
}
def code(t, l, k):
	tmp = 0
	if k <= 1.85e-10:
		tmp = 2.0 * (((l / k) / t) * ((l / k) / (k * k)))
	else:
		tmp = 2.0 * (((math.cos(k) / k) * (l / (k / l))) / (t * (k * k)))
	return tmp
function code(t, l, k)
	tmp = 0.0
	if (k <= 1.85e-10)
		tmp = Float64(2.0 * Float64(Float64(Float64(l / k) / t) * Float64(Float64(l / k) / Float64(k * k))));
	else
		tmp = Float64(2.0 * Float64(Float64(Float64(cos(k) / k) * Float64(l / Float64(k / l))) / Float64(t * Float64(k * k))));
	end
	return tmp
end
function tmp_2 = code(t, l, k)
	tmp = 0.0;
	if (k <= 1.85e-10)
		tmp = 2.0 * (((l / k) / t) * ((l / k) / (k * k)));
	else
		tmp = 2.0 * (((cos(k) / k) * (l / (k / l))) / (t * (k * k)));
	end
	tmp_2 = tmp;
end
code[t_, l_, k_] := If[LessEqual[k, 1.85e-10], N[(2.0 * N[(N[(N[(l / k), $MachinePrecision] / t), $MachinePrecision] * N[(N[(l / k), $MachinePrecision] / N[(k * k), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(2.0 * N[(N[(N[(N[Cos[k], $MachinePrecision] / k), $MachinePrecision] * N[(l / N[(k / l), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(t * N[(k * k), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;k \leq 1.85 \cdot 10^{-10}:\\
\;\;\;\;2 \cdot \left(\frac{\frac{\ell}{k}}{t} \cdot \frac{\frac{\ell}{k}}{k \cdot k}\right)\\

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if k < 1.85000000000000007e-10

    1. Initial program 31.4%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
    2. Step-by-step derivation
      1. associate-*l*31.3%

        \[\leadsto \frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)\right)} \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      2. associate-*l*31.3%

        \[\leadsto \frac{2}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)\right)}} \]
      3. associate-/r*31.3%

        \[\leadsto \color{blue}{\frac{\frac{2}{\frac{{t}^{3}}{\ell \cdot \ell}}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)}} \]
      4. associate-/r/31.3%

        \[\leadsto \frac{\color{blue}{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      5. *-commutative31.3%

        \[\leadsto \frac{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}{\color{blue}{\left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right) \cdot \left(\sin k \cdot \tan k\right)}} \]
      6. times-frac31.9%

        \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k}} \]
      7. +-commutative31.9%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{\left({\left(\frac{k}{t}\right)}^{2} + 1\right)} - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      8. associate--l+37.4%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2} + \left(1 - 1\right)}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      9. metadata-eval37.4%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2} + \color{blue}{0}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      10. +-rgt-identity37.4%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2}}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      11. times-frac44.1%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \color{blue}{\left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    3. Simplified44.1%

      \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    4. Taylor expanded in t around 0 66.3%

      \[\leadsto \color{blue}{2 \cdot \frac{\cos k \cdot {\ell}^{2}}{{k}^{2} \cdot \left({\sin k}^{2} \cdot t\right)}} \]
    5. Step-by-step derivation
      1. associate-/r*68.1%

        \[\leadsto 2 \cdot \color{blue}{\frac{\frac{\cos k \cdot {\ell}^{2}}{{k}^{2}}}{{\sin k}^{2} \cdot t}} \]
      2. unpow268.1%

        \[\leadsto 2 \cdot \frac{\frac{\cos k \cdot \color{blue}{\left(\ell \cdot \ell\right)}}{{k}^{2}}}{{\sin k}^{2} \cdot t} \]
      3. unpow268.1%

        \[\leadsto 2 \cdot \frac{\frac{\cos k \cdot \left(\ell \cdot \ell\right)}{\color{blue}{k \cdot k}}}{{\sin k}^{2} \cdot t} \]
      4. *-commutative68.1%

        \[\leadsto 2 \cdot \frac{\frac{\cos k \cdot \left(\ell \cdot \ell\right)}{k \cdot k}}{\color{blue}{t \cdot {\sin k}^{2}}} \]
    6. Simplified68.1%

      \[\leadsto \color{blue}{2 \cdot \frac{\frac{\cos k \cdot \left(\ell \cdot \ell\right)}{k \cdot k}}{t \cdot {\sin k}^{2}}} \]
    7. Taylor expanded in k around 0 61.4%

      \[\leadsto 2 \cdot \frac{\frac{\cos k \cdot \left(\ell \cdot \ell\right)}{k \cdot k}}{t \cdot \color{blue}{{k}^{2}}} \]
    8. Step-by-step derivation
      1. unpow261.4%

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

      \[\leadsto 2 \cdot \frac{\frac{\cos k \cdot \left(\ell \cdot \ell\right)}{k \cdot k}}{t \cdot \color{blue}{\left(k \cdot k\right)}} \]
    10. Taylor expanded in k around 0 60.5%

      \[\leadsto 2 \cdot \frac{\color{blue}{\frac{{\ell}^{2}}{{k}^{2}}}}{t \cdot \left(k \cdot k\right)} \]
    11. Step-by-step derivation
      1. unpow260.5%

        \[\leadsto 2 \cdot \frac{\frac{\color{blue}{\ell \cdot \ell}}{{k}^{2}}}{t \cdot \left(k \cdot k\right)} \]
      2. unpow260.5%

        \[\leadsto 2 \cdot \frac{\frac{\ell \cdot \ell}{\color{blue}{k \cdot k}}}{t \cdot \left(k \cdot k\right)} \]
      3. times-frac72.4%

        \[\leadsto 2 \cdot \frac{\color{blue}{\frac{\ell}{k} \cdot \frac{\ell}{k}}}{t \cdot \left(k \cdot k\right)} \]
    12. Simplified72.4%

      \[\leadsto 2 \cdot \frac{\color{blue}{\frac{\ell}{k} \cdot \frac{\ell}{k}}}{t \cdot \left(k \cdot k\right)} \]
    13. Step-by-step derivation
      1. times-frac76.3%

        \[\leadsto 2 \cdot \color{blue}{\left(\frac{\frac{\ell}{k}}{t} \cdot \frac{\frac{\ell}{k}}{k \cdot k}\right)} \]
    14. Applied egg-rr76.3%

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

    if 1.85000000000000007e-10 < k

    1. Initial program 38.1%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
    2. Step-by-step derivation
      1. associate-*l*38.1%

        \[\leadsto \frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)\right)} \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      2. associate-*l*38.1%

        \[\leadsto \frac{2}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)\right)}} \]
      3. associate-/r*38.1%

        \[\leadsto \color{blue}{\frac{\frac{2}{\frac{{t}^{3}}{\ell \cdot \ell}}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)}} \]
      4. associate-/r/38.1%

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

        \[\leadsto \frac{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}{\color{blue}{\left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right) \cdot \left(\sin k \cdot \tan k\right)}} \]
      6. times-frac38.1%

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

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{\left({\left(\frac{k}{t}\right)}^{2} + 1\right)} - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      8. associate--l+50.1%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2} + \left(1 - 1\right)}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      9. metadata-eval50.1%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2} + \color{blue}{0}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      10. +-rgt-identity50.1%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2}}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      11. times-frac50.1%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \color{blue}{\left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    3. Simplified50.1%

      \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    4. Taylor expanded in t around 0 74.1%

      \[\leadsto \color{blue}{2 \cdot \frac{\cos k \cdot {\ell}^{2}}{{k}^{2} \cdot \left({\sin k}^{2} \cdot t\right)}} \]
    5. Step-by-step derivation
      1. associate-/r*72.2%

        \[\leadsto 2 \cdot \color{blue}{\frac{\frac{\cos k \cdot {\ell}^{2}}{{k}^{2}}}{{\sin k}^{2} \cdot t}} \]
      2. unpow272.2%

        \[\leadsto 2 \cdot \frac{\frac{\cos k \cdot \color{blue}{\left(\ell \cdot \ell\right)}}{{k}^{2}}}{{\sin k}^{2} \cdot t} \]
      3. unpow272.2%

        \[\leadsto 2 \cdot \frac{\frac{\cos k \cdot \left(\ell \cdot \ell\right)}{\color{blue}{k \cdot k}}}{{\sin k}^{2} \cdot t} \]
      4. *-commutative72.2%

        \[\leadsto 2 \cdot \frac{\frac{\cos k \cdot \left(\ell \cdot \ell\right)}{k \cdot k}}{\color{blue}{t \cdot {\sin k}^{2}}} \]
    6. Simplified72.2%

      \[\leadsto \color{blue}{2 \cdot \frac{\frac{\cos k \cdot \left(\ell \cdot \ell\right)}{k \cdot k}}{t \cdot {\sin k}^{2}}} \]
    7. Taylor expanded in k around inf 72.2%

      \[\leadsto 2 \cdot \frac{\color{blue}{\frac{\cos k \cdot {\ell}^{2}}{{k}^{2}}}}{t \cdot {\sin k}^{2}} \]
    8. Step-by-step derivation
      1. unpow272.2%

        \[\leadsto 2 \cdot \frac{\frac{\cos k \cdot {\ell}^{2}}{\color{blue}{k \cdot k}}}{t \cdot {\sin k}^{2}} \]
      2. times-frac73.7%

        \[\leadsto 2 \cdot \frac{\color{blue}{\frac{\cos k}{k} \cdot \frac{{\ell}^{2}}{k}}}{t \cdot {\sin k}^{2}} \]
      3. unpow273.7%

        \[\leadsto 2 \cdot \frac{\frac{\cos k}{k} \cdot \frac{\color{blue}{\ell \cdot \ell}}{k}}{t \cdot {\sin k}^{2}} \]
      4. associate-/l*85.2%

        \[\leadsto 2 \cdot \frac{\frac{\cos k}{k} \cdot \color{blue}{\frac{\ell}{\frac{k}{\ell}}}}{t \cdot {\sin k}^{2}} \]
    9. Simplified85.2%

      \[\leadsto 2 \cdot \frac{\color{blue}{\frac{\cos k}{k} \cdot \frac{\ell}{\frac{k}{\ell}}}}{t \cdot {\sin k}^{2}} \]
    10. Taylor expanded in k around 0 60.7%

      \[\leadsto 2 \cdot \frac{\frac{\cos k}{k} \cdot \frac{\ell}{\frac{k}{\ell}}}{t \cdot \color{blue}{{k}^{2}}} \]
    11. Step-by-step derivation
      1. unpow258.0%

        \[\leadsto 2 \cdot \frac{\frac{\cos k \cdot \left(\ell \cdot \ell\right)}{k \cdot k}}{t \cdot \color{blue}{\left(k \cdot k\right)}} \]
    12. Simplified60.7%

      \[\leadsto 2 \cdot \frac{\frac{\cos k}{k} \cdot \frac{\ell}{\frac{k}{\ell}}}{t \cdot \color{blue}{\left(k \cdot k\right)}} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification70.7%

    \[\leadsto \begin{array}{l} \mathbf{if}\;k \leq 1.85 \cdot 10^{-10}:\\ \;\;\;\;2 \cdot \left(\frac{\frac{\ell}{k}}{t} \cdot \frac{\frac{\ell}{k}}{k \cdot k}\right)\\ \mathbf{else}:\\ \;\;\;\;2 \cdot \frac{\frac{\cos k}{k} \cdot \frac{\ell}{\frac{k}{\ell}}}{t \cdot \left(k \cdot k\right)}\\ \end{array} \]

Alternative 13: 71.6% accurate, 3.6× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;k \leq 10^{-10}:\\ \;\;\;\;2 \cdot \left(\frac{\frac{\ell}{k}}{t} \cdot \frac{\frac{\ell}{k}}{k \cdot k}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{2}{t \cdot \left(k \cdot k\right)} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{k}\right)\\ \end{array} \end{array} \]
(FPCore (t l k)
 :precision binary64
 (if (<= k 1e-10)
   (* 2.0 (* (/ (/ l k) t) (/ (/ l k) (* k k))))
   (* (/ 2.0 (* t (* k k))) (* (/ l (sin k)) (/ l k)))))
double code(double t, double l, double k) {
	double tmp;
	if (k <= 1e-10) {
		tmp = 2.0 * (((l / k) / t) * ((l / k) / (k * k)));
	} else {
		tmp = (2.0 / (t * (k * k))) * ((l / sin(k)) * (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 (k <= 1d-10) then
        tmp = 2.0d0 * (((l / k) / t) * ((l / k) / (k * k)))
    else
        tmp = (2.0d0 / (t * (k * k))) * ((l / sin(k)) * (l / k))
    end if
    code = tmp
end function
public static double code(double t, double l, double k) {
	double tmp;
	if (k <= 1e-10) {
		tmp = 2.0 * (((l / k) / t) * ((l / k) / (k * k)));
	} else {
		tmp = (2.0 / (t * (k * k))) * ((l / Math.sin(k)) * (l / k));
	}
	return tmp;
}
def code(t, l, k):
	tmp = 0
	if k <= 1e-10:
		tmp = 2.0 * (((l / k) / t) * ((l / k) / (k * k)))
	else:
		tmp = (2.0 / (t * (k * k))) * ((l / math.sin(k)) * (l / k))
	return tmp
function code(t, l, k)
	tmp = 0.0
	if (k <= 1e-10)
		tmp = Float64(2.0 * Float64(Float64(Float64(l / k) / t) * Float64(Float64(l / k) / Float64(k * k))));
	else
		tmp = Float64(Float64(2.0 / Float64(t * Float64(k * k))) * Float64(Float64(l / sin(k)) * Float64(l / k)));
	end
	return tmp
end
function tmp_2 = code(t, l, k)
	tmp = 0.0;
	if (k <= 1e-10)
		tmp = 2.0 * (((l / k) / t) * ((l / k) / (k * k)));
	else
		tmp = (2.0 / (t * (k * k))) * ((l / sin(k)) * (l / k));
	end
	tmp_2 = tmp;
end
code[t_, l_, k_] := If[LessEqual[k, 1e-10], N[(2.0 * N[(N[(N[(l / k), $MachinePrecision] / t), $MachinePrecision] * N[(N[(l / k), $MachinePrecision] / N[(k * k), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(2.0 / N[(t * N[(k * k), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] * N[(N[(l / N[Sin[k], $MachinePrecision]), $MachinePrecision] * N[(l / k), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

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

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


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if k < 1.00000000000000004e-10

    1. Initial program 31.4%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
    2. Step-by-step derivation
      1. associate-*l*31.3%

        \[\leadsto \frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)\right)} \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      2. associate-*l*31.3%

        \[\leadsto \frac{2}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)\right)}} \]
      3. associate-/r*31.3%

        \[\leadsto \color{blue}{\frac{\frac{2}{\frac{{t}^{3}}{\ell \cdot \ell}}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)}} \]
      4. associate-/r/31.3%

        \[\leadsto \frac{\color{blue}{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      5. *-commutative31.3%

        \[\leadsto \frac{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}{\color{blue}{\left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right) \cdot \left(\sin k \cdot \tan k\right)}} \]
      6. times-frac31.9%

        \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k}} \]
      7. +-commutative31.9%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{\left({\left(\frac{k}{t}\right)}^{2} + 1\right)} - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      8. associate--l+37.4%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2} + \left(1 - 1\right)}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      9. metadata-eval37.4%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2} + \color{blue}{0}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      10. +-rgt-identity37.4%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2}}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      11. times-frac44.1%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \color{blue}{\left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    3. Simplified44.1%

      \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    4. Taylor expanded in t around 0 66.3%

      \[\leadsto \color{blue}{2 \cdot \frac{\cos k \cdot {\ell}^{2}}{{k}^{2} \cdot \left({\sin k}^{2} \cdot t\right)}} \]
    5. Step-by-step derivation
      1. associate-/r*68.1%

        \[\leadsto 2 \cdot \color{blue}{\frac{\frac{\cos k \cdot {\ell}^{2}}{{k}^{2}}}{{\sin k}^{2} \cdot t}} \]
      2. unpow268.1%

        \[\leadsto 2 \cdot \frac{\frac{\cos k \cdot \color{blue}{\left(\ell \cdot \ell\right)}}{{k}^{2}}}{{\sin k}^{2} \cdot t} \]
      3. unpow268.1%

        \[\leadsto 2 \cdot \frac{\frac{\cos k \cdot \left(\ell \cdot \ell\right)}{\color{blue}{k \cdot k}}}{{\sin k}^{2} \cdot t} \]
      4. *-commutative68.1%

        \[\leadsto 2 \cdot \frac{\frac{\cos k \cdot \left(\ell \cdot \ell\right)}{k \cdot k}}{\color{blue}{t \cdot {\sin k}^{2}}} \]
    6. Simplified68.1%

      \[\leadsto \color{blue}{2 \cdot \frac{\frac{\cos k \cdot \left(\ell \cdot \ell\right)}{k \cdot k}}{t \cdot {\sin k}^{2}}} \]
    7. Taylor expanded in k around 0 61.4%

      \[\leadsto 2 \cdot \frac{\frac{\cos k \cdot \left(\ell \cdot \ell\right)}{k \cdot k}}{t \cdot \color{blue}{{k}^{2}}} \]
    8. Step-by-step derivation
      1. unpow261.4%

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

      \[\leadsto 2 \cdot \frac{\frac{\cos k \cdot \left(\ell \cdot \ell\right)}{k \cdot k}}{t \cdot \color{blue}{\left(k \cdot k\right)}} \]
    10. Taylor expanded in k around 0 60.5%

      \[\leadsto 2 \cdot \frac{\color{blue}{\frac{{\ell}^{2}}{{k}^{2}}}}{t \cdot \left(k \cdot k\right)} \]
    11. Step-by-step derivation
      1. unpow260.5%

        \[\leadsto 2 \cdot \frac{\frac{\color{blue}{\ell \cdot \ell}}{{k}^{2}}}{t \cdot \left(k \cdot k\right)} \]
      2. unpow260.5%

        \[\leadsto 2 \cdot \frac{\frac{\ell \cdot \ell}{\color{blue}{k \cdot k}}}{t \cdot \left(k \cdot k\right)} \]
      3. times-frac72.4%

        \[\leadsto 2 \cdot \frac{\color{blue}{\frac{\ell}{k} \cdot \frac{\ell}{k}}}{t \cdot \left(k \cdot k\right)} \]
    12. Simplified72.4%

      \[\leadsto 2 \cdot \frac{\color{blue}{\frac{\ell}{k} \cdot \frac{\ell}{k}}}{t \cdot \left(k \cdot k\right)} \]
    13. Step-by-step derivation
      1. times-frac76.3%

        \[\leadsto 2 \cdot \color{blue}{\left(\frac{\frac{\ell}{k}}{t} \cdot \frac{\frac{\ell}{k}}{k \cdot k}\right)} \]
    14. Applied egg-rr76.3%

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

    if 1.00000000000000004e-10 < k

    1. Initial program 38.1%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
    2. Step-by-step derivation
      1. associate-*l*38.1%

        \[\leadsto \frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)\right)} \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
      2. associate-*l*38.1%

        \[\leadsto \frac{2}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)\right)}} \]
      3. associate-/r*38.1%

        \[\leadsto \color{blue}{\frac{\frac{2}{\frac{{t}^{3}}{\ell \cdot \ell}}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)}} \]
      4. associate-/r/38.1%

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

        \[\leadsto \frac{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}{\color{blue}{\left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right) \cdot \left(\sin k \cdot \tan k\right)}} \]
      6. times-frac38.1%

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

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{\left({\left(\frac{k}{t}\right)}^{2} + 1\right)} - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      8. associate--l+50.1%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2} + \left(1 - 1\right)}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      9. metadata-eval50.1%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2} + \color{blue}{0}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      10. +-rgt-identity50.1%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2}}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
      11. times-frac50.1%

        \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \color{blue}{\left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    3. Simplified50.1%

      \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    4. Taylor expanded in t around 0 74.0%

      \[\leadsto \color{blue}{\frac{2}{{k}^{2} \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    5. Step-by-step derivation
      1. unpow274.0%

        \[\leadsto \frac{2}{\color{blue}{\left(k \cdot k\right)} \cdot t} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    6. Simplified74.0%

      \[\leadsto \color{blue}{\frac{2}{\left(k \cdot k\right) \cdot t}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    7. Taylor expanded in k around 0 57.2%

      \[\leadsto \frac{2}{\left(k \cdot k\right) \cdot t} \cdot \left(\frac{\ell}{\sin k} \cdot \color{blue}{\frac{\ell}{k}}\right) \]
  3. Recombined 2 regimes into one program.
  4. Final simplification69.4%

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

Alternative 14: 71.6% accurate, 28.1× speedup?

\[\begin{array}{l} \\ 2 \cdot \left(\frac{\frac{\ell}{k}}{t} \cdot \frac{\frac{\ell}{k}}{k \cdot k}\right) \end{array} \]
(FPCore (t l k)
 :precision binary64
 (* 2.0 (* (/ (/ l k) t) (/ (/ l k) (* k k)))))
double code(double t, double l, double k) {
	return 2.0 * (((l / k) / t) * ((l / k) / (k * 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 * (((l / k) / t) * ((l / k) / (k * k)))
end function
public static double code(double t, double l, double k) {
	return 2.0 * (((l / k) / t) * ((l / k) / (k * k)));
}
def code(t, l, k):
	return 2.0 * (((l / k) / t) * ((l / k) / (k * k)))
function code(t, l, k)
	return Float64(2.0 * Float64(Float64(Float64(l / k) / t) * Float64(Float64(l / k) / Float64(k * k))))
end
function tmp = code(t, l, k)
	tmp = 2.0 * (((l / k) / t) * ((l / k) / (k * k)));
end
code[t_, l_, k_] := N[(2.0 * N[(N[(N[(l / k), $MachinePrecision] / t), $MachinePrecision] * N[(N[(l / k), $MachinePrecision] / N[(k * k), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
2 \cdot \left(\frac{\frac{\ell}{k}}{t} \cdot \frac{\frac{\ell}{k}}{k \cdot k}\right)
\end{array}
Derivation
  1. Initial program 33.8%

    \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
  2. Step-by-step derivation
    1. associate-*l*33.8%

      \[\leadsto \frac{2}{\color{blue}{\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\sin k \cdot \tan k\right)\right)} \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
    2. associate-*l*33.8%

      \[\leadsto \frac{2}{\color{blue}{\frac{{t}^{3}}{\ell \cdot \ell} \cdot \left(\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)\right)}} \]
    3. associate-/r*33.8%

      \[\leadsto \color{blue}{\frac{\frac{2}{\frac{{t}^{3}}{\ell \cdot \ell}}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)}} \]
    4. associate-/r/33.8%

      \[\leadsto \frac{\color{blue}{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}}{\left(\sin k \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
    5. *-commutative33.8%

      \[\leadsto \frac{\frac{2}{{t}^{3}} \cdot \left(\ell \cdot \ell\right)}{\color{blue}{\left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right) \cdot \left(\sin k \cdot \tan k\right)}} \]
    6. times-frac34.2%

      \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k}} \]
    7. +-commutative34.2%

      \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{\left({\left(\frac{k}{t}\right)}^{2} + 1\right)} - 1} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
    8. associate--l+42.0%

      \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2} + \left(1 - 1\right)}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
    9. metadata-eval42.0%

      \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2} + \color{blue}{0}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
    10. +-rgt-identity42.0%

      \[\leadsto \frac{\frac{2}{{t}^{3}}}{\color{blue}{{\left(\frac{k}{t}\right)}^{2}}} \cdot \frac{\ell \cdot \ell}{\sin k \cdot \tan k} \]
    11. times-frac46.3%

      \[\leadsto \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \color{blue}{\left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
  3. Simplified46.3%

    \[\leadsto \color{blue}{\frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
  4. Taylor expanded in t around 0 69.1%

    \[\leadsto \color{blue}{2 \cdot \frac{\cos k \cdot {\ell}^{2}}{{k}^{2} \cdot \left({\sin k}^{2} \cdot t\right)}} \]
  5. Step-by-step derivation
    1. associate-/r*69.5%

      \[\leadsto 2 \cdot \color{blue}{\frac{\frac{\cos k \cdot {\ell}^{2}}{{k}^{2}}}{{\sin k}^{2} \cdot t}} \]
    2. unpow269.5%

      \[\leadsto 2 \cdot \frac{\frac{\cos k \cdot \color{blue}{\left(\ell \cdot \ell\right)}}{{k}^{2}}}{{\sin k}^{2} \cdot t} \]
    3. unpow269.5%

      \[\leadsto 2 \cdot \frac{\frac{\cos k \cdot \left(\ell \cdot \ell\right)}{\color{blue}{k \cdot k}}}{{\sin k}^{2} \cdot t} \]
    4. *-commutative69.5%

      \[\leadsto 2 \cdot \frac{\frac{\cos k \cdot \left(\ell \cdot \ell\right)}{k \cdot k}}{\color{blue}{t \cdot {\sin k}^{2}}} \]
  6. Simplified69.5%

    \[\leadsto \color{blue}{2 \cdot \frac{\frac{\cos k \cdot \left(\ell \cdot \ell\right)}{k \cdot k}}{t \cdot {\sin k}^{2}}} \]
  7. Taylor expanded in k around 0 60.2%

    \[\leadsto 2 \cdot \frac{\frac{\cos k \cdot \left(\ell \cdot \ell\right)}{k \cdot k}}{t \cdot \color{blue}{{k}^{2}}} \]
  8. Step-by-step derivation
    1. unpow260.2%

      \[\leadsto 2 \cdot \frac{\frac{\cos k \cdot \left(\ell \cdot \ell\right)}{k \cdot k}}{t \cdot \color{blue}{\left(k \cdot k\right)}} \]
  9. Simplified60.2%

    \[\leadsto 2 \cdot \frac{\frac{\cos k \cdot \left(\ell \cdot \ell\right)}{k \cdot k}}{t \cdot \color{blue}{\left(k \cdot k\right)}} \]
  10. Taylor expanded in k around 0 57.9%

    \[\leadsto 2 \cdot \frac{\color{blue}{\frac{{\ell}^{2}}{{k}^{2}}}}{t \cdot \left(k \cdot k\right)} \]
  11. Step-by-step derivation
    1. unpow257.9%

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

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

      \[\leadsto 2 \cdot \frac{\color{blue}{\frac{\ell}{k} \cdot \frac{\ell}{k}}}{t \cdot \left(k \cdot k\right)} \]
  12. Simplified66.2%

    \[\leadsto 2 \cdot \frac{\color{blue}{\frac{\ell}{k} \cdot \frac{\ell}{k}}}{t \cdot \left(k \cdot k\right)} \]
  13. Step-by-step derivation
    1. times-frac68.7%

      \[\leadsto 2 \cdot \color{blue}{\left(\frac{\frac{\ell}{k}}{t} \cdot \frac{\frac{\ell}{k}}{k \cdot k}\right)} \]
  14. Applied egg-rr68.7%

    \[\leadsto 2 \cdot \color{blue}{\left(\frac{\frac{\ell}{k}}{t} \cdot \frac{\frac{\ell}{k}}{k \cdot k}\right)} \]
  15. Final simplification68.7%

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

Reproduce

?
herbie shell --seed 2023216 
(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))))