\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 \le -1.5092185083587785 \cdot 10^{-150}:\\
\;\;\;\;\left(\sqrt[3]{\frac{2}{\left(\left(\left(\frac{{\left(\sqrt[3]{t} \cdot \sqrt[3]{t}\right)}^{\left(\frac{3}{2}\right)}}{\sqrt[3]{\ell} \cdot \sqrt[3]{\ell}} \cdot \frac{{\left(\sqrt[3]{t} \cdot \sqrt[3]{t}\right)}^{\left(\frac{3}{2}\right)}}{\sqrt[3]{\ell}}\right) \cdot \left(\frac{{t}^{\left(\frac{1}{3} \cdot 3\right)}}{\ell} \cdot \sin k\right)\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)}} \cdot \sqrt[3]{\frac{2}{\left(\left(\left(\frac{{\left(\sqrt[3]{t} \cdot \sqrt[3]{t}\right)}^{\left(\frac{3}{2}\right)}}{\sqrt[3]{\ell} \cdot \sqrt[3]{\ell}} \cdot \frac{{\left(\sqrt[3]{t} \cdot \sqrt[3]{t}\right)}^{\left(\frac{3}{2}\right)}}{\sqrt[3]{\ell}}\right) \cdot \left(\frac{{t}^{\left(\frac{1}{3} \cdot 3\right)}}{\ell} \cdot \sin k\right)\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)}}\right) \cdot \sqrt[3]{\frac{2}{\left(\left(\left(\frac{{\left(\sqrt[3]{t} \cdot \sqrt[3]{t}\right)}^{\left(\frac{3}{2}\right)}}{\sqrt[3]{\ell} \cdot \sqrt[3]{\ell}} \cdot \frac{{\left(\sqrt[3]{t} \cdot \sqrt[3]{t}\right)}^{\left(\frac{3}{2}\right)}}{\sqrt[3]{\ell}}\right) \cdot \left(\frac{{t}^{\left(\frac{1}{3} \cdot 3\right)}}{\ell} \cdot \sin k\right)\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)}}\\
\mathbf{elif}\;t \le -6.0361605514595116 \cdot 10^{-223}:\\
\;\;\;\;\frac{2}{2 \cdot \left({\left(\frac{1}{{-1}^{3}}\right)}^{1} \cdot \frac{{\left(\sqrt[3]{-1}\right)}^{9} \cdot \left({t}^{3} \cdot {\left(\sin k\right)}^{2}\right)}{\cos k \cdot {\ell}^{2}}\right) + {\left(\frac{1}{{-1}^{3}}\right)}^{1} \cdot \frac{{\left(\sqrt[3]{-1}\right)}^{9} \cdot \left({\left(\sin k\right)}^{2} \cdot \left({k}^{2} \cdot t\right)\right)}{\cos k \cdot {\ell}^{2}}}\\
\mathbf{elif}\;t \le 4.6911135529549043 \cdot 10^{-176}:\\
\;\;\;\;0\\
\mathbf{else}:\\
\;\;\;\;\frac{\sqrt[3]{2} \cdot \sqrt[3]{2}}{\frac{\left(\left(\left(\frac{{\left(\sqrt[3]{t} \cdot \sqrt[3]{t}\right)}^{\left(\frac{3}{2}\right)}}{\sqrt[3]{\ell} \cdot \sqrt[3]{\ell}} \cdot \frac{{\left(\sqrt[3]{t} \cdot \sqrt[3]{t}\right)}^{\left(\frac{3}{2}\right)}}{\sqrt[3]{\ell}}\right) \cdot \left(\frac{{t}^{\left(\frac{1}{3} \cdot 3\right)}}{\ell} \cdot \sin k\right)\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) + 1\right)}{\sqrt[3]{2}}}\\
\end{array}double code(double t, double l, double k) {
return ((double) (2.0 / ((double) (((double) (((double) (((double) (((double) pow(t, 3.0)) / ((double) (l * l)))) * ((double) sin(k)))) * ((double) tan(k)))) * ((double) (((double) (1.0 + ((double) pow(((double) (k / t)), 2.0)))) + 1.0))))));
}
double code(double t, double l, double k) {
double VAR;
if ((t <= -1.5092185083587785e-150)) {
VAR = ((double) (((double) (((double) cbrt(((double) (2.0 / ((double) (((double) (((double) (((double) (((double) (((double) pow(((double) (((double) cbrt(t)) * ((double) cbrt(t)))), ((double) (3.0 / 2.0)))) / ((double) (((double) cbrt(l)) * ((double) cbrt(l)))))) * ((double) (((double) pow(((double) (((double) cbrt(t)) * ((double) cbrt(t)))), ((double) (3.0 / 2.0)))) / ((double) cbrt(l)))))) * ((double) (((double) (((double) pow(t, ((double) (0.3333333333333333 * 3.0)))) / l)) * ((double) sin(k)))))) * ((double) tan(k)))) * ((double) (((double) (1.0 + ((double) pow(((double) (k / t)), 2.0)))) + 1.0)))))))) * ((double) cbrt(((double) (2.0 / ((double) (((double) (((double) (((double) (((double) (((double) pow(((double) (((double) cbrt(t)) * ((double) cbrt(t)))), ((double) (3.0 / 2.0)))) / ((double) (((double) cbrt(l)) * ((double) cbrt(l)))))) * ((double) (((double) pow(((double) (((double) cbrt(t)) * ((double) cbrt(t)))), ((double) (3.0 / 2.0)))) / ((double) cbrt(l)))))) * ((double) (((double) (((double) pow(t, ((double) (0.3333333333333333 * 3.0)))) / l)) * ((double) sin(k)))))) * ((double) tan(k)))) * ((double) (((double) (1.0 + ((double) pow(((double) (k / t)), 2.0)))) + 1.0)))))))))) * ((double) cbrt(((double) (2.0 / ((double) (((double) (((double) (((double) (((double) (((double) pow(((double) (((double) cbrt(t)) * ((double) cbrt(t)))), ((double) (3.0 / 2.0)))) / ((double) (((double) cbrt(l)) * ((double) cbrt(l)))))) * ((double) (((double) pow(((double) (((double) cbrt(t)) * ((double) cbrt(t)))), ((double) (3.0 / 2.0)))) / ((double) cbrt(l)))))) * ((double) (((double) (((double) pow(t, ((double) (0.3333333333333333 * 3.0)))) / l)) * ((double) sin(k)))))) * ((double) tan(k)))) * ((double) (((double) (1.0 + ((double) pow(((double) (k / t)), 2.0)))) + 1.0))))))))));
} else {
double VAR_1;
if ((t <= -6.0361605514595116e-223)) {
VAR_1 = ((double) (2.0 / ((double) (((double) (2.0 * ((double) (((double) pow(((double) (1.0 / ((double) pow(-1.0, 3.0)))), 1.0)) * ((double) (((double) (((double) pow(((double) cbrt(-1.0)), 9.0)) * ((double) (((double) pow(t, 3.0)) * ((double) pow(((double) sin(k)), 2.0)))))) / ((double) (((double) cos(k)) * ((double) pow(l, 2.0)))))))))) + ((double) (((double) pow(((double) (1.0 / ((double) pow(-1.0, 3.0)))), 1.0)) * ((double) (((double) (((double) pow(((double) cbrt(-1.0)), 9.0)) * ((double) (((double) pow(((double) sin(k)), 2.0)) * ((double) (((double) pow(k, 2.0)) * t)))))) / ((double) (((double) cos(k)) * ((double) pow(l, 2.0))))))))))));
} else {
double VAR_2;
if ((t <= 4.691113552954904e-176)) {
VAR_2 = 0.0;
} else {
VAR_2 = ((double) (((double) (((double) cbrt(2.0)) * ((double) cbrt(2.0)))) / ((double) (((double) (((double) (((double) (((double) (((double) (((double) pow(((double) (((double) cbrt(t)) * ((double) cbrt(t)))), ((double) (3.0 / 2.0)))) / ((double) (((double) cbrt(l)) * ((double) cbrt(l)))))) * ((double) (((double) pow(((double) (((double) cbrt(t)) * ((double) cbrt(t)))), ((double) (3.0 / 2.0)))) / ((double) cbrt(l)))))) * ((double) (((double) (((double) pow(t, ((double) (0.3333333333333333 * 3.0)))) / l)) * ((double) sin(k)))))) * ((double) tan(k)))) * ((double) (((double) (1.0 + ((double) pow(((double) (k / t)), 2.0)))) + 1.0)))) / ((double) cbrt(2.0))))));
}
VAR_1 = VAR_2;
}
VAR = VAR_1;
}
return VAR;
}



Bits error versus t



Bits error versus l



Bits error versus k
Results
if t < -1.5092185083587785e-150Initial program 26.8
rmApplied add-cube-cbrt27.0
Applied unpow-prod-down27.0
Applied times-frac19.2
Applied associate-*l*16.7
rmApplied add-cube-cbrt16.7
Applied sqr-pow16.7
Applied times-frac11.9
rmApplied pow1/364.0
Applied pow-pow11.8
rmApplied add-cube-cbrt11.8
if -1.5092185083587785e-150 < t < -6.0361605514595116e-223Initial program 64.0
rmApplied add-cube-cbrt64.0
Applied unpow-prod-down64.0
Applied times-frac60.4
Applied associate-*l*60.4
Taylor expanded around -inf 42.3
if -6.0361605514595116e-223 < t < 4.691113552954904e-176Initial program 64.0
rmApplied add-cube-cbrt64.0
Applied unpow-prod-down64.0
Applied times-frac64.0
Applied associate-*l*64.0
rmApplied add-cube-cbrt64.0
Applied sqr-pow64.0
Applied times-frac54.9
rmApplied pow1/357.2
Applied pow-pow54.8
Taylor expanded around inf 42.9
if 4.691113552954904e-176 < t Initial program 27.9
rmApplied add-cube-cbrt28.1
Applied unpow-prod-down28.1
Applied times-frac19.7
Applied associate-*l*17.5
rmApplied add-cube-cbrt17.5
Applied sqr-pow17.5
Applied times-frac12.9
rmApplied pow1/313.9
Applied pow-pow12.8
rmApplied add-cube-cbrt12.9
Applied associate-/l*12.9
Final simplification17.0
herbie shell --seed 2020140
(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))))