Toniolo and Linder, Equation (10-)

?

Percentage Accurate: 35.8% → 89.7%
Time: 26.9s
Precision: binary64
Cost: 20356

?

\[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
\[\begin{array}{l} \mathbf{if}\;t \leq 1.5 \cdot 10^{+113}:\\ \;\;\;\;\frac{\frac{\ell}{\tan k}}{\frac{k \cdot \left(t \cdot k\right)}{\ell \cdot 2} \cdot \sin k}\\ \mathbf{else}:\\ \;\;\;\;2 \cdot \left(\frac{\cos k}{k \cdot k} \cdot \frac{\ell}{\frac{t \cdot {\sin k}^{2}}{\ell}}\right)\\ \end{array} \]
(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))))
(FPCore (t l k)
 :precision binary64
 (if (<= t 1.5e+113)
   (/ (/ l (tan k)) (* (/ (* k (* t k)) (* l 2.0)) (sin k)))
   (* 2.0 (* (/ (cos k) (* k k)) (/ l (/ (* t (pow (sin k) 2.0)) l))))))
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));
}
double code(double t, double l, double k) {
	double tmp;
	if (t <= 1.5e+113) {
		tmp = (l / tan(k)) / (((k * (t * k)) / (l * 2.0)) * sin(k));
	} else {
		tmp = 2.0 * ((cos(k) / (k * k)) * (l / ((t * pow(sin(k), 2.0)) / l)));
	}
	return tmp;
}
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
real(8) function code(t, l, k)
    real(8), intent (in) :: t
    real(8), intent (in) :: l
    real(8), intent (in) :: k
    real(8) :: tmp
    if (t <= 1.5d+113) then
        tmp = (l / tan(k)) / (((k * (t * k)) / (l * 2.0d0)) * sin(k))
    else
        tmp = 2.0d0 * ((cos(k) / (k * k)) * (l / ((t * (sin(k) ** 2.0d0)) / l)))
    end if
    code = tmp
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));
}
public static double code(double t, double l, double k) {
	double tmp;
	if (t <= 1.5e+113) {
		tmp = (l / Math.tan(k)) / (((k * (t * k)) / (l * 2.0)) * Math.sin(k));
	} else {
		tmp = 2.0 * ((Math.cos(k) / (k * k)) * (l / ((t * Math.pow(Math.sin(k), 2.0)) / l)));
	}
	return tmp;
}
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))
def code(t, l, k):
	tmp = 0
	if t <= 1.5e+113:
		tmp = (l / math.tan(k)) / (((k * (t * k)) / (l * 2.0)) * math.sin(k))
	else:
		tmp = 2.0 * ((math.cos(k) / (k * k)) * (l / ((t * math.pow(math.sin(k), 2.0)) / l)))
	return tmp
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 code(t, l, k)
	tmp = 0.0
	if (t <= 1.5e+113)
		tmp = Float64(Float64(l / tan(k)) / Float64(Float64(Float64(k * Float64(t * k)) / Float64(l * 2.0)) * sin(k)));
	else
		tmp = Float64(2.0 * Float64(Float64(cos(k) / Float64(k * k)) * Float64(l / Float64(Float64(t * (sin(k) ^ 2.0)) / l))));
	end
	return tmp
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
function tmp_2 = code(t, l, k)
	tmp = 0.0;
	if (t <= 1.5e+113)
		tmp = (l / tan(k)) / (((k * (t * k)) / (l * 2.0)) * sin(k));
	else
		tmp = 2.0 * ((cos(k) / (k * k)) * (l / ((t * (sin(k) ^ 2.0)) / l)));
	end
	tmp_2 = tmp;
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]
code[t_, l_, k_] := If[LessEqual[t, 1.5e+113], N[(N[(l / N[Tan[k], $MachinePrecision]), $MachinePrecision] / N[(N[(N[(k * N[(t * k), $MachinePrecision]), $MachinePrecision] / N[(l * 2.0), $MachinePrecision]), $MachinePrecision] * N[Sin[k], $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(2.0 * N[(N[(N[Cos[k], $MachinePrecision] / N[(k * k), $MachinePrecision]), $MachinePrecision] * N[(l / N[(N[(t * N[Power[N[Sin[k], $MachinePrecision], 2.0], $MachinePrecision]), $MachinePrecision] / l), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\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)}
\begin{array}{l}
\mathbf{if}\;t \leq 1.5 \cdot 10^{+113}:\\
\;\;\;\;\frac{\frac{\ell}{\tan k}}{\frac{k \cdot \left(t \cdot k\right)}{\ell \cdot 2} \cdot \sin k}\\

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


\end{array}

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.

Herbie found 11 alternatives:

AlternativeAccuracySpeedup

Accuracy vs Speed

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.

Bogosity?

Bogosity

Try it out?

Your Program's Arguments

Results

Enter valid numbers for all inputs

Derivation?

  1. Split input into 2 regimes
  2. if t < 1.5e113

    1. Initial program 39.6%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
    2. Simplified53.5%

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

      [Start]39.6%

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

      associate-*l* [=>]39.6%

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

      associate-*l* [=>]39.6%

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

      associate-/r* [=>]39.6%

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

      associate-/r/ [=>]39.1%

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

      *-commutative [=>]39.1%

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

      times-frac [=>]39.6%

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

      +-commutative [=>]39.6%

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

      associate--l+ [=>]45.8%

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

      metadata-eval [=>]45.8%

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

      +-rgt-identity [=>]45.8%

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

      times-frac [=>]53.5%

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

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

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

      [Start]83.3%

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

      unpow2 [=>]83.3%

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

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

      [Start]83.3%

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

      associate-*l/ [=>]83.3%

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

      associate-*l* [=>]87.8%

      \[ \frac{2 \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)}{\color{blue}{k \cdot \left(k \cdot t\right)}} \]
    6. Simplified92.8%

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

      [Start]87.8%

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

      associate-*l/ [<=]87.7%

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

      associate-*r* [=>]92.4%

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

      *-commutative [=>]92.4%

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

      associate-*l/ [=>]92.8%

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

      associate-*r/ [=>]92.8%

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

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

      [Start]92.8%

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

      div-inv [=>]92.8%

      \[ \color{blue}{\left(\ell \cdot \frac{1}{\tan k}\right)} \cdot \frac{\frac{2 \cdot \ell}{\sin k}}{k \cdot \left(k \cdot t\right)} \]
    8. Applied egg-rr87.8%

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

      [Start]92.8%

      \[ \left(\ell \cdot \frac{1}{\tan k}\right) \cdot \frac{\frac{2 \cdot \ell}{\sin k}}{k \cdot \left(k \cdot t\right)} \]

      div-inv [<=]92.8%

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

      associate-*r/ [=>]87.8%

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

      *-commutative [=>]87.8%

      \[ \frac{\frac{\ell}{\tan k} \cdot \frac{\color{blue}{\ell \cdot 2}}{\sin k}}{k \cdot \left(k \cdot t\right)} \]
    9. Simplified92.8%

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

      [Start]87.8%

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

      associate-/l* [=>]92.8%

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

      associate-/r/ [=>]92.8%

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

      *-commutative [=>]92.8%

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

    if 1.5e113 < t

    1. Initial program 5.9%

      \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)} \]
    2. Simplified21.0%

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

      [Start]5.9%

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

      associate-*l* [=>]5.9%

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

      associate-*l* [=>]5.9%

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

      associate-/r* [=>]5.9%

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

      associate-/r/ [=>]5.9%

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

      *-commutative [=>]5.9%

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

      times-frac [=>]5.9%

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

      +-commutative [=>]5.9%

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

      associate--l+ [=>]21.0%

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

      metadata-eval [=>]21.0%

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

      +-rgt-identity [=>]21.0%

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

      times-frac [=>]21.0%

      \[ \frac{\frac{2}{{t}^{3}}}{{\left(\frac{k}{t}\right)}^{2}} \cdot \color{blue}{\left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right)} \]
    3. Taylor expanded in t around 0 65.4%

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

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

      [Start]65.4%

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

      unpow2 [=>]65.4%

      \[ \frac{2}{\color{blue}{\left(k \cdot k\right)} \cdot t} \cdot \left(\frac{\ell}{\sin k} \cdot \frac{\ell}{\tan k}\right) \]
    5. Taylor expanded in k around inf 64.9%

      \[\leadsto \color{blue}{2 \cdot \frac{\cos k \cdot {\ell}^{2}}{{k}^{2} \cdot \left({\sin k}^{2} \cdot t\right)}} \]
    6. Simplified91.1%

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

      [Start]64.9%

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

      times-frac [=>]68.3%

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

      unpow2 [=>]68.3%

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

      unpow2 [=>]68.3%

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

      *-commutative [=>]68.3%

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

      associate-/l* [=>]91.1%

      \[ 2 \cdot \left(\frac{\cos k}{k \cdot k} \cdot \color{blue}{\frac{\ell}{\frac{t \cdot {\sin k}^{2}}{\ell}}}\right) \]
  3. Recombined 2 regimes into one program.
  4. Final simplification92.6%

    \[\leadsto \begin{array}{l} \mathbf{if}\;t \leq 1.5 \cdot 10^{+113}:\\ \;\;\;\;\frac{\frac{\ell}{\tan k}}{\frac{k \cdot \left(t \cdot k\right)}{\ell \cdot 2} \cdot \sin k}\\ \mathbf{else}:\\ \;\;\;\;2 \cdot \left(\frac{\cos k}{k \cdot k} \cdot \frac{\ell}{\frac{t \cdot {\sin k}^{2}}{\ell}}\right)\\ \end{array} \]

Alternatives

Alternative 1
Accuracy89.7%
Cost20356
\[\begin{array}{l} \mathbf{if}\;t \leq 1.5 \cdot 10^{+113}:\\ \;\;\;\;\frac{\frac{\ell}{\tan k}}{\frac{k \cdot \left(t \cdot k\right)}{\ell \cdot 2} \cdot \sin k}\\ \mathbf{else}:\\ \;\;\;\;2 \cdot \left(\frac{\cos k}{k \cdot k} \cdot \frac{\ell}{\frac{t \cdot {\sin k}^{2}}{\ell}}\right)\\ \end{array} \]
Alternative 2
Accuracy89.9%
Cost13888
\[\left(\ell \cdot \frac{1}{\tan k}\right) \cdot \frac{\frac{\ell \cdot 2}{\sin k}}{k \cdot \left(t \cdot k\right)} \]
Alternative 3
Accuracy89.7%
Cost13760
\[\frac{\ell}{\tan k} \cdot \left(\frac{2}{k \cdot \left(t \cdot k\right)} \cdot \frac{\ell}{\sin k}\right) \]
Alternative 4
Accuracy89.9%
Cost13760
\[\frac{\ell}{\tan k} \cdot \frac{\frac{2}{\frac{\sin k}{\ell}}}{k \cdot \left(t \cdot k\right)} \]
Alternative 5
Accuracy89.9%
Cost13760
\[\frac{\ell}{\tan k} \cdot \frac{\frac{\ell \cdot 2}{\sin k}}{k \cdot \left(t \cdot k\right)} \]
Alternative 6
Accuracy89.9%
Cost13760
\[\frac{\frac{\ell}{\tan k}}{\frac{k \cdot \left(t \cdot k\right)}{\ell \cdot 2} \cdot \sin k} \]
Alternative 7
Accuracy74.6%
Cost7360
\[\frac{\frac{\ell \cdot 2}{\sin k}}{k \cdot \left(t \cdot k\right)} \cdot \frac{\ell}{k} \]
Alternative 8
Accuracy71.6%
Cost960
\[\frac{2}{t \cdot \left(k \cdot k\right)} \cdot \left(\ell \cdot \frac{\ell}{k \cdot k}\right) \]
Alternative 9
Accuracy71.6%
Cost960
\[\left(\frac{\ell}{k} \cdot \frac{\ell}{k}\right) \cdot \frac{2}{t \cdot \left(k \cdot k\right)} \]
Alternative 10
Accuracy73.1%
Cost960
\[\frac{2 \cdot \left(\frac{\ell}{k} \cdot \frac{\ell}{k}\right)}{k \cdot \left(t \cdot k\right)} \]
Alternative 11
Accuracy30.4%
Cost704
\[-0.3333333333333333 \cdot \left(\ell \cdot \frac{\ell}{k \cdot \left(t \cdot k\right)}\right) \]

Reproduce?

herbie shell --seed 2023269 
(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))))