\sqrt{\frac{1}{2} \cdot \left(1 + \frac{1}{\sqrt{1 + {\left(\frac{2 \cdot \ell}{Om}\right)}^{2} \cdot \left({\left(\sin kx\right)}^{2} + {\left(\sin ky\right)}^{2}\right)}}\right)}\sqrt{\frac{1}{2} \cdot \left(1 + \frac{1}{\sqrt{1 + \left(\sqrt{{\left(\sin kx\right)}^{2} + {\left(\sin ky\right)}^{2}} \cdot {\left(\frac{2 \cdot \ell}{Om}\right)}^{\left(2 \cdot 0.5\right)}\right) \cdot \left(\sqrt{{\left(\sin kx\right)}^{2} + {\left(\sin ky\right)}^{2}} \cdot {\left(\frac{2 \cdot \ell}{Om}\right)}^{\left(2 \cdot 0.5\right)}\right)}}\right)}(FPCore (l Om kx ky)
:precision binary64
(sqrt
(*
(/ 1.0 2.0)
(+
1.0
(/
1.0
(sqrt
(+
1.0
(*
(pow (/ (* 2.0 l) Om) 2.0)
(+ (pow (sin kx) 2.0) (pow (sin ky) 2.0))))))))))(FPCore (l Om kx ky)
:precision binary64
(sqrt
(*
(/ 1.0 2.0)
(+
1.0
(/
1.0
(sqrt
(+
1.0
(*
(*
(sqrt (+ (pow (sin kx) 2.0) (pow (sin ky) 2.0)))
(pow (/ (* 2.0 l) Om) (* 2.0 0.5)))
(*
(sqrt (+ (pow (sin kx) 2.0) (pow (sin ky) 2.0)))
(pow (/ (* 2.0 l) Om) (* 2.0 0.5)))))))))))double code(double l, double Om, double kx, double ky) {
return ((double) sqrt(((double) ((1.0 / 2.0) * ((double) (1.0 + (1.0 / ((double) sqrt(((double) (1.0 + ((double) (((double) pow((((double) (2.0 * l)) / Om), 2.0)) * ((double) (((double) pow(((double) sin(kx)), 2.0)) + ((double) pow(((double) sin(ky)), 2.0)))))))))))))))));
}
double code(double l, double Om, double kx, double ky) {
return ((double) sqrt(((double) ((1.0 / 2.0) * ((double) (1.0 + (1.0 / ((double) sqrt(((double) (1.0 + ((double) (((double) (((double) sqrt(((double) (((double) pow(((double) sin(kx)), 2.0)) + ((double) pow(((double) sin(ky)), 2.0)))))) * ((double) pow((((double) (2.0 * l)) / Om), ((double) (2.0 * 0.5)))))) * ((double) (((double) sqrt(((double) (((double) pow(((double) sin(kx)), 2.0)) + ((double) pow(((double) sin(ky)), 2.0)))))) * ((double) pow((((double) (2.0 * l)) / Om), ((double) (2.0 * 0.5)))))))))))))))))));
}



Bits error versus l



Bits error versus Om



Bits error versus kx



Bits error versus ky
Results
Initial program 1.1
rmApplied add-sqr-sqrt_binary641.1
Applied sqr-pow_binary641.1
Applied unswap-sqr_binary640.8
Simplified0.8
Simplified0.8
Final simplification0.8
herbie shell --seed 2020205
(FPCore (l Om kx ky)
:name "Toniolo and Linder, Equation (3a)"
:precision binary64
(sqrt (* (/ 1.0 2.0) (+ 1.0 (/ 1.0 (sqrt (+ 1.0 (* (pow (/ (* 2.0 l) Om) 2.0) (+ (pow (sin kx) 2.0) (pow (sin ky) 2.0))))))))))