\left(\left(2 \cdot \left({b}^{2} - {a}^{2}\right)\right) \cdot \sin \left(\pi \cdot \frac{angle}{180}\right)\right) \cdot \cos \left(\pi \cdot \frac{angle}{180}\right)2 \cdot \left(\sin \left(0.005555555555555556 \cdot \left(angle \cdot \pi\right)\right) \cdot \left(\sqrt[3]{{\left(\sqrt[3]{{\log \left(e^{\cos \left(0.005555555555555556 \cdot \left(angle \cdot \pi\right)\right)}\right)}^{3}}\right)}^{3}} \cdot \left(b \cdot b - a \cdot a\right)\right)\right)(FPCore (a b angle) :precision binary64 (* (* (* 2.0 (- (pow b 2.0) (pow a 2.0))) (sin (* PI (/ angle 180.0)))) (cos (* PI (/ angle 180.0)))))
(FPCore (a b angle)
:precision binary64
(*
2.0
(*
(sin (* 0.005555555555555556 (* angle PI)))
(*
(cbrt
(pow
(cbrt (pow (log (exp (cos (* 0.005555555555555556 (* angle PI))))) 3.0))
3.0))
(- (* b b) (* a a))))))double code(double a, double b, double angle) {
return ((2.0 * (pow(b, 2.0) - pow(a, 2.0))) * sin(((double) M_PI) * (angle / 180.0))) * cos(((double) M_PI) * (angle / 180.0));
}
double code(double a, double b, double angle) {
return 2.0 * (sin(0.005555555555555556 * (angle * ((double) M_PI))) * (cbrt(pow(cbrt(pow(log(exp(cos(0.005555555555555556 * (angle * ((double) M_PI))))), 3.0)), 3.0)) * ((b * b) - (a * a))));
}



Bits error versus a



Bits error versus b



Bits error versus angle
Results
Initial program 31.2
Simplified31.0
Taylor expanded around inf 31.0
Simplified31.0
rmApplied add-cbrt-cube_binary64_11431.0
Simplified31.0
rmApplied add-cbrt-cube_binary64_11431.0
Simplified31.0
rmApplied add-log-exp_binary64_11731.0
Final simplification31.0
herbie shell --seed 2021176
(FPCore (a b angle)
:name "ab-angle->ABCF B"
:precision binary64
(* (* (* 2.0 (- (pow b 2.0) (pow a 2.0))) (sin (* PI (/ angle 180.0)))) (cos (* PI (/ angle 180.0)))))