\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)}\frac{\frac{\sqrt[3]{\frac{2}{t}}}{\sqrt[3]{\tan k}}}{\frac{k}{\ell}} \cdot \left(\frac{1}{\frac{\frac{k}{\ell}}{\frac{\sqrt[3]{\frac{2}{t}}}{\sqrt[3]{\tan k}}}} \cdot \frac{\frac{\sqrt[3]{\frac{2}{t}}}{\sqrt[3]{\tan k}}}{\sin k}\right)double f(double t, double l, double k) {
double r11580159 = 2.0;
double r11580160 = t;
double r11580161 = 3.0;
double r11580162 = pow(r11580160, r11580161);
double r11580163 = l;
double r11580164 = r11580163 * r11580163;
double r11580165 = r11580162 / r11580164;
double r11580166 = k;
double r11580167 = sin(r11580166);
double r11580168 = r11580165 * r11580167;
double r11580169 = tan(r11580166);
double r11580170 = r11580168 * r11580169;
double r11580171 = 1.0;
double r11580172 = r11580166 / r11580160;
double r11580173 = pow(r11580172, r11580159);
double r11580174 = r11580171 + r11580173;
double r11580175 = r11580174 - r11580171;
double r11580176 = r11580170 * r11580175;
double r11580177 = r11580159 / r11580176;
return r11580177;
}
double f(double t, double l, double k) {
double r11580178 = 2.0;
double r11580179 = t;
double r11580180 = r11580178 / r11580179;
double r11580181 = cbrt(r11580180);
double r11580182 = k;
double r11580183 = tan(r11580182);
double r11580184 = cbrt(r11580183);
double r11580185 = r11580181 / r11580184;
double r11580186 = l;
double r11580187 = r11580182 / r11580186;
double r11580188 = r11580185 / r11580187;
double r11580189 = 1.0;
double r11580190 = r11580187 / r11580185;
double r11580191 = r11580189 / r11580190;
double r11580192 = sin(r11580182);
double r11580193 = r11580185 / r11580192;
double r11580194 = r11580191 * r11580193;
double r11580195 = r11580188 * r11580194;
return r11580195;
}



Bits error versus t



Bits error versus l



Bits error versus k
Results
Initial program 46.8
Simplified30.0
rmApplied associate-/l*27.9
Simplified15.2
rmApplied add-cube-cbrt15.3
Applied add-cube-cbrt15.4
Applied times-frac15.4
Applied times-frac14.9
Simplified2.7
rmApplied associate-*l*1.0
rmApplied clear-num1.0
Final simplification1.0
herbie shell --seed 2019158 +o rules:numerics
(FPCore (t l k)
:name "Toniolo and Linder, Equation (10-)"
(/ 2 (* (* (* (/ (pow t 3) (* l l)) (sin k)) (tan k)) (- (+ 1 (pow (/ k t) 2)) 1))))