
(FPCore (xi yi zi ux uy maxCos)
:precision binary32
(let* ((t_0 (* (* (- 1.0 ux) maxCos) ux))
(t_1 (sqrt (- 1.0 (* t_0 t_0))))
(t_2 (* (* uy 2.0) PI)))
(+ (+ (* (* (cos t_2) t_1) xi) (* (* (sin t_2) t_1) yi)) (* t_0 zi))))
float code(float xi, float yi, float zi, float ux, float uy, float maxCos) {
float t_0 = ((1.0f - ux) * maxCos) * ux;
float t_1 = sqrtf((1.0f - (t_0 * t_0)));
float t_2 = (uy * 2.0f) * ((float) M_PI);
return (((cosf(t_2) * t_1) * xi) + ((sinf(t_2) * t_1) * yi)) + (t_0 * zi);
}
function code(xi, yi, zi, ux, uy, maxCos) t_0 = Float32(Float32(Float32(Float32(1.0) - ux) * maxCos) * ux) t_1 = sqrt(Float32(Float32(1.0) - Float32(t_0 * t_0))) t_2 = Float32(Float32(uy * Float32(2.0)) * Float32(pi)) return Float32(Float32(Float32(Float32(cos(t_2) * t_1) * xi) + Float32(Float32(sin(t_2) * t_1) * yi)) + Float32(t_0 * zi)) end
function tmp = code(xi, yi, zi, ux, uy, maxCos) t_0 = ((single(1.0) - ux) * maxCos) * ux; t_1 = sqrt((single(1.0) - (t_0 * t_0))); t_2 = (uy * single(2.0)) * single(pi); tmp = (((cos(t_2) * t_1) * xi) + ((sin(t_2) * t_1) * yi)) + (t_0 * zi); end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left(\left(1 - ux\right) \cdot maxCos\right) \cdot ux\\
t_1 := \sqrt{1 - t\_0 \cdot t\_0}\\
t_2 := \left(uy \cdot 2\right) \cdot \pi\\
\left(\left(\cos t\_2 \cdot t\_1\right) \cdot xi + \left(\sin t\_2 \cdot t\_1\right) \cdot yi\right) + t\_0 \cdot zi
\end{array}
\end{array}
Sampling outcomes in binary32 precision:
Herbie found 13 alternatives:
| Alternative | Accuracy | Speedup |
|---|
(FPCore (xi yi zi ux uy maxCos)
:precision binary32
(let* ((t_0 (* (* (- 1.0 ux) maxCos) ux))
(t_1 (sqrt (- 1.0 (* t_0 t_0))))
(t_2 (* (* uy 2.0) PI)))
(+ (+ (* (* (cos t_2) t_1) xi) (* (* (sin t_2) t_1) yi)) (* t_0 zi))))
float code(float xi, float yi, float zi, float ux, float uy, float maxCos) {
float t_0 = ((1.0f - ux) * maxCos) * ux;
float t_1 = sqrtf((1.0f - (t_0 * t_0)));
float t_2 = (uy * 2.0f) * ((float) M_PI);
return (((cosf(t_2) * t_1) * xi) + ((sinf(t_2) * t_1) * yi)) + (t_0 * zi);
}
function code(xi, yi, zi, ux, uy, maxCos) t_0 = Float32(Float32(Float32(Float32(1.0) - ux) * maxCos) * ux) t_1 = sqrt(Float32(Float32(1.0) - Float32(t_0 * t_0))) t_2 = Float32(Float32(uy * Float32(2.0)) * Float32(pi)) return Float32(Float32(Float32(Float32(cos(t_2) * t_1) * xi) + Float32(Float32(sin(t_2) * t_1) * yi)) + Float32(t_0 * zi)) end
function tmp = code(xi, yi, zi, ux, uy, maxCos) t_0 = ((single(1.0) - ux) * maxCos) * ux; t_1 = sqrt((single(1.0) - (t_0 * t_0))); t_2 = (uy * single(2.0)) * single(pi); tmp = (((cos(t_2) * t_1) * xi) + ((sin(t_2) * t_1) * yi)) + (t_0 * zi); end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left(\left(1 - ux\right) \cdot maxCos\right) \cdot ux\\
t_1 := \sqrt{1 - t\_0 \cdot t\_0}\\
t_2 := \left(uy \cdot 2\right) \cdot \pi\\
\left(\left(\cos t\_2 \cdot t\_1\right) \cdot xi + \left(\sin t\_2 \cdot t\_1\right) \cdot yi\right) + t\_0 \cdot zi
\end{array}
\end{array}
(FPCore (xi yi zi ux uy maxCos)
:precision binary32
(let* ((t_0 (* uy (* 2.0 PI)))
(t_1
(sqrt
(+
1.0
(* (* (- 1.0 ux) (* ux maxCos)) (* (+ ux -1.0) (* ux maxCos)))))))
(fma
(cos t_0)
(* t_1 xi)
(fma (sin t_0) (* t_1 yi) (* (- 1.0 ux) (* zi (* ux maxCos)))))))
float code(float xi, float yi, float zi, float ux, float uy, float maxCos) {
float t_0 = uy * (2.0f * ((float) M_PI));
float t_1 = sqrtf((1.0f + (((1.0f - ux) * (ux * maxCos)) * ((ux + -1.0f) * (ux * maxCos)))));
return fmaf(cosf(t_0), (t_1 * xi), fmaf(sinf(t_0), (t_1 * yi), ((1.0f - ux) * (zi * (ux * maxCos)))));
}
function code(xi, yi, zi, ux, uy, maxCos) t_0 = Float32(uy * Float32(Float32(2.0) * Float32(pi))) t_1 = sqrt(Float32(Float32(1.0) + Float32(Float32(Float32(Float32(1.0) - ux) * Float32(ux * maxCos)) * Float32(Float32(ux + Float32(-1.0)) * Float32(ux * maxCos))))) return fma(cos(t_0), Float32(t_1 * xi), fma(sin(t_0), Float32(t_1 * yi), Float32(Float32(Float32(1.0) - ux) * Float32(zi * Float32(ux * maxCos))))) end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := uy \cdot \left(2 \cdot \pi\right)\\
t_1 := \sqrt{1 + \left(\left(1 - ux\right) \cdot \left(ux \cdot maxCos\right)\right) \cdot \left(\left(ux + -1\right) \cdot \left(ux \cdot maxCos\right)\right)}\\
\mathsf{fma}\left(\cos t\_0, t\_1 \cdot xi, \mathsf{fma}\left(\sin t\_0, t\_1 \cdot yi, \left(1 - ux\right) \cdot \left(zi \cdot \left(ux \cdot maxCos\right)\right)\right)\right)
\end{array}
\end{array}
Initial program 99.0%
associate-+l+99.0%
associate-*l*99.0%
fma-define99.0%
Simplified99.0%
Final simplification99.0%
(FPCore (xi yi zi ux uy maxCos)
:precision binary32
(let* ((t_0 (* (- 1.0 ux) maxCos)) (t_1 (* PI (* uy 2.0))))
(fma
t_0
(* ux zi)
(*
(sqrt (+ 1.0 (* t_0 (* (* maxCos (+ ux -1.0)) (* ux ux)))))
(fma (sin t_1) yi (* xi (cos t_1)))))))
float code(float xi, float yi, float zi, float ux, float uy, float maxCos) {
float t_0 = (1.0f - ux) * maxCos;
float t_1 = ((float) M_PI) * (uy * 2.0f);
return fmaf(t_0, (ux * zi), (sqrtf((1.0f + (t_0 * ((maxCos * (ux + -1.0f)) * (ux * ux))))) * fmaf(sinf(t_1), yi, (xi * cosf(t_1)))));
}
function code(xi, yi, zi, ux, uy, maxCos) t_0 = Float32(Float32(Float32(1.0) - ux) * maxCos) t_1 = Float32(Float32(pi) * Float32(uy * Float32(2.0))) return fma(t_0, Float32(ux * zi), Float32(sqrt(Float32(Float32(1.0) + Float32(t_0 * Float32(Float32(maxCos * Float32(ux + Float32(-1.0))) * Float32(ux * ux))))) * fma(sin(t_1), yi, Float32(xi * cos(t_1))))) end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left(1 - ux\right) \cdot maxCos\\
t_1 := \pi \cdot \left(uy \cdot 2\right)\\
\mathsf{fma}\left(t\_0, ux \cdot zi, \sqrt{1 + t\_0 \cdot \left(\left(maxCos \cdot \left(ux + -1\right)\right) \cdot \left(ux \cdot ux\right)\right)} \cdot \mathsf{fma}\left(\sin t\_1, yi, xi \cdot \cos t\_1\right)\right)
\end{array}
\end{array}
Initial program 99.0%
Simplified99.0%
add-exp-log47.3%
*-commutative47.3%
associate-*r*47.3%
Applied egg-rr47.3%
+-commutative47.3%
rem-exp-log99.0%
*-commutative99.0%
fma-define99.0%
*-commutative99.0%
associate-*r*99.0%
Applied egg-rr99.0%
Final simplification99.0%
(FPCore (xi yi zi ux uy maxCos)
:precision binary32
(let* ((t_0 (* ux (* (- 1.0 ux) maxCos)))
(t_1 (sqrt (+ 1.0 (* t_0 (* ux (* maxCos (+ ux -1.0)))))))
(t_2 (* PI (* uy 2.0))))
(+ (+ (* xi (* (cos t_2) t_1)) (* yi (* (sin t_2) t_1))) (* zi t_0))))
float code(float xi, float yi, float zi, float ux, float uy, float maxCos) {
float t_0 = ux * ((1.0f - ux) * maxCos);
float t_1 = sqrtf((1.0f + (t_0 * (ux * (maxCos * (ux + -1.0f))))));
float t_2 = ((float) M_PI) * (uy * 2.0f);
return ((xi * (cosf(t_2) * t_1)) + (yi * (sinf(t_2) * t_1))) + (zi * t_0);
}
function code(xi, yi, zi, ux, uy, maxCos) t_0 = Float32(ux * Float32(Float32(Float32(1.0) - ux) * maxCos)) t_1 = sqrt(Float32(Float32(1.0) + Float32(t_0 * Float32(ux * Float32(maxCos * Float32(ux + Float32(-1.0))))))) t_2 = Float32(Float32(pi) * Float32(uy * Float32(2.0))) return Float32(Float32(Float32(xi * Float32(cos(t_2) * t_1)) + Float32(yi * Float32(sin(t_2) * t_1))) + Float32(zi * t_0)) end
function tmp = code(xi, yi, zi, ux, uy, maxCos) t_0 = ux * ((single(1.0) - ux) * maxCos); t_1 = sqrt((single(1.0) + (t_0 * (ux * (maxCos * (ux + single(-1.0))))))); t_2 = single(pi) * (uy * single(2.0)); tmp = ((xi * (cos(t_2) * t_1)) + (yi * (sin(t_2) * t_1))) + (zi * t_0); end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := ux \cdot \left(\left(1 - ux\right) \cdot maxCos\right)\\
t_1 := \sqrt{1 + t\_0 \cdot \left(ux \cdot \left(maxCos \cdot \left(ux + -1\right)\right)\right)}\\
t_2 := \pi \cdot \left(uy \cdot 2\right)\\
\left(xi \cdot \left(\cos t\_2 \cdot t\_1\right) + yi \cdot \left(\sin t\_2 \cdot t\_1\right)\right) + zi \cdot t\_0
\end{array}
\end{array}
Initial program 99.0%
Final simplification99.0%
(FPCore (xi yi zi ux uy maxCos)
:precision binary32
(let* ((t_0 (* (- 1.0 ux) maxCos)) (t_1 (* uy (* 2.0 PI))))
(fma
t_0
(* ux zi)
(*
(sqrt (+ 1.0 (* t_0 (* (* maxCos (+ ux -1.0)) (* ux ux)))))
(+ (* (cos t_1) xi) (* (sin t_1) yi))))))
float code(float xi, float yi, float zi, float ux, float uy, float maxCos) {
float t_0 = (1.0f - ux) * maxCos;
float t_1 = uy * (2.0f * ((float) M_PI));
return fmaf(t_0, (ux * zi), (sqrtf((1.0f + (t_0 * ((maxCos * (ux + -1.0f)) * (ux * ux))))) * ((cosf(t_1) * xi) + (sinf(t_1) * yi))));
}
function code(xi, yi, zi, ux, uy, maxCos) t_0 = Float32(Float32(Float32(1.0) - ux) * maxCos) t_1 = Float32(uy * Float32(Float32(2.0) * Float32(pi))) return fma(t_0, Float32(ux * zi), Float32(sqrt(Float32(Float32(1.0) + Float32(t_0 * Float32(Float32(maxCos * Float32(ux + Float32(-1.0))) * Float32(ux * ux))))) * Float32(Float32(cos(t_1) * xi) + Float32(sin(t_1) * yi)))) end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left(1 - ux\right) \cdot maxCos\\
t_1 := uy \cdot \left(2 \cdot \pi\right)\\
\mathsf{fma}\left(t\_0, ux \cdot zi, \sqrt{1 + t\_0 \cdot \left(\left(maxCos \cdot \left(ux + -1\right)\right) \cdot \left(ux \cdot ux\right)\right)} \cdot \left(\cos t\_1 \cdot xi + \sin t\_1 \cdot yi\right)\right)
\end{array}
\end{array}
Initial program 99.0%
Simplified99.0%
Final simplification99.0%
(FPCore (xi yi zi ux uy maxCos)
:precision binary32
(fma
(cos (* uy (* 2.0 PI)))
(*
(sqrt
(+ 1.0 (* (* (- 1.0 ux) (* ux maxCos)) (* (+ ux -1.0) (* ux maxCos)))))
xi)
(+ (* maxCos (* ux (* (- 1.0 ux) zi))) (* yi (sin (* 2.0 (* uy PI)))))))
float code(float xi, float yi, float zi, float ux, float uy, float maxCos) {
return fmaf(cosf((uy * (2.0f * ((float) M_PI)))), (sqrtf((1.0f + (((1.0f - ux) * (ux * maxCos)) * ((ux + -1.0f) * (ux * maxCos))))) * xi), ((maxCos * (ux * ((1.0f - ux) * zi))) + (yi * sinf((2.0f * (uy * ((float) M_PI)))))));
}
function code(xi, yi, zi, ux, uy, maxCos) return fma(cos(Float32(uy * Float32(Float32(2.0) * Float32(pi)))), Float32(sqrt(Float32(Float32(1.0) + Float32(Float32(Float32(Float32(1.0) - ux) * Float32(ux * maxCos)) * Float32(Float32(ux + Float32(-1.0)) * Float32(ux * maxCos))))) * xi), Float32(Float32(maxCos * Float32(ux * Float32(Float32(Float32(1.0) - ux) * zi))) + Float32(yi * sin(Float32(Float32(2.0) * Float32(uy * Float32(pi))))))) end
\begin{array}{l}
\\
\mathsf{fma}\left(\cos \left(uy \cdot \left(2 \cdot \pi\right)\right), \sqrt{1 + \left(\left(1 - ux\right) \cdot \left(ux \cdot maxCos\right)\right) \cdot \left(\left(ux + -1\right) \cdot \left(ux \cdot maxCos\right)\right)} \cdot xi, maxCos \cdot \left(ux \cdot \left(\left(1 - ux\right) \cdot zi\right)\right) + yi \cdot \sin \left(2 \cdot \left(uy \cdot \pi\right)\right)\right)
\end{array}
Initial program 99.0%
associate-+l+99.0%
associate-*l*99.0%
fma-define99.0%
Simplified99.0%
Taylor expanded in maxCos around 0 98.8%
Final simplification98.8%
(FPCore (xi yi zi ux uy maxCos)
:precision binary32
(let* ((t_0 (* ux (* (- 1.0 ux) maxCos))))
(+
(* zi t_0)
(+
(*
xi
(*
(cos (* PI (* uy 2.0)))
(sqrt (+ 1.0 (* t_0 (* ux (* maxCos (+ ux -1.0))))))))
(* yi (sin (* 2.0 (* uy PI))))))))
float code(float xi, float yi, float zi, float ux, float uy, float maxCos) {
float t_0 = ux * ((1.0f - ux) * maxCos);
return (zi * t_0) + ((xi * (cosf((((float) M_PI) * (uy * 2.0f))) * sqrtf((1.0f + (t_0 * (ux * (maxCos * (ux + -1.0f)))))))) + (yi * sinf((2.0f * (uy * ((float) M_PI))))));
}
function code(xi, yi, zi, ux, uy, maxCos) t_0 = Float32(ux * Float32(Float32(Float32(1.0) - ux) * maxCos)) return Float32(Float32(zi * t_0) + Float32(Float32(xi * Float32(cos(Float32(Float32(pi) * Float32(uy * Float32(2.0)))) * sqrt(Float32(Float32(1.0) + Float32(t_0 * Float32(ux * Float32(maxCos * Float32(ux + Float32(-1.0))))))))) + Float32(yi * sin(Float32(Float32(2.0) * Float32(uy * Float32(pi))))))) end
function tmp = code(xi, yi, zi, ux, uy, maxCos) t_0 = ux * ((single(1.0) - ux) * maxCos); tmp = (zi * t_0) + ((xi * (cos((single(pi) * (uy * single(2.0)))) * sqrt((single(1.0) + (t_0 * (ux * (maxCos * (ux + single(-1.0))))))))) + (yi * sin((single(2.0) * (uy * single(pi)))))); end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := ux \cdot \left(\left(1 - ux\right) \cdot maxCos\right)\\
zi \cdot t\_0 + \left(xi \cdot \left(\cos \left(\pi \cdot \left(uy \cdot 2\right)\right) \cdot \sqrt{1 + t\_0 \cdot \left(ux \cdot \left(maxCos \cdot \left(ux + -1\right)\right)\right)}\right) + yi \cdot \sin \left(2 \cdot \left(uy \cdot \pi\right)\right)\right)
\end{array}
\end{array}
Initial program 99.0%
Taylor expanded in ux around 0 98.8%
Final simplification98.8%
(FPCore (xi yi zi ux uy maxCos)
:precision binary32
(let* ((t_0 (* 2.0 (* uy PI))))
(+
(* maxCos (* ux (* (- 1.0 ux) zi)))
(+ (* yi (sin t_0)) (* xi (cos t_0))))))
float code(float xi, float yi, float zi, float ux, float uy, float maxCos) {
float t_0 = 2.0f * (uy * ((float) M_PI));
return (maxCos * (ux * ((1.0f - ux) * zi))) + ((yi * sinf(t_0)) + (xi * cosf(t_0)));
}
function code(xi, yi, zi, ux, uy, maxCos) t_0 = Float32(Float32(2.0) * Float32(uy * Float32(pi))) return Float32(Float32(maxCos * Float32(ux * Float32(Float32(Float32(1.0) - ux) * zi))) + Float32(Float32(yi * sin(t_0)) + Float32(xi * cos(t_0)))) end
function tmp = code(xi, yi, zi, ux, uy, maxCos) t_0 = single(2.0) * (uy * single(pi)); tmp = (maxCos * (ux * ((single(1.0) - ux) * zi))) + ((yi * sin(t_0)) + (xi * cos(t_0))); end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := 2 \cdot \left(uy \cdot \pi\right)\\
maxCos \cdot \left(ux \cdot \left(\left(1 - ux\right) \cdot zi\right)\right) + \left(yi \cdot \sin t\_0 + xi \cdot \cos t\_0\right)
\end{array}
\end{array}
Initial program 99.0%
Simplified99.0%
expm1-log1p-u98.6%
expm1-undefine98.6%
Applied egg-rr98.6%
expm1-define98.6%
Simplified98.6%
log1p-expm1-u98.6%
*-commutative98.6%
expm1-log1p-u99.0%
*-commutative99.0%
associate-*l*99.0%
Applied egg-rr99.0%
Taylor expanded in maxCos around 0 98.8%
Final simplification98.8%
(FPCore (xi yi zi ux uy maxCos) :precision binary32 (let* ((t_0 (* 2.0 (* uy PI)))) (+ (+ (* yi (sin t_0)) (* xi (cos t_0))) (* maxCos (* ux zi)))))
float code(float xi, float yi, float zi, float ux, float uy, float maxCos) {
float t_0 = 2.0f * (uy * ((float) M_PI));
return ((yi * sinf(t_0)) + (xi * cosf(t_0))) + (maxCos * (ux * zi));
}
function code(xi, yi, zi, ux, uy, maxCos) t_0 = Float32(Float32(2.0) * Float32(uy * Float32(pi))) return Float32(Float32(Float32(yi * sin(t_0)) + Float32(xi * cos(t_0))) + Float32(maxCos * Float32(ux * zi))) end
function tmp = code(xi, yi, zi, ux, uy, maxCos) t_0 = single(2.0) * (uy * single(pi)); tmp = ((yi * sin(t_0)) + (xi * cos(t_0))) + (maxCos * (ux * zi)); end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := 2 \cdot \left(uy \cdot \pi\right)\\
\left(yi \cdot \sin t\_0 + xi \cdot \cos t\_0\right) + maxCos \cdot \left(ux \cdot zi\right)
\end{array}
\end{array}
Initial program 99.0%
Simplified99.0%
expm1-log1p-u98.6%
expm1-undefine98.6%
Applied egg-rr98.6%
expm1-define98.6%
Simplified98.6%
log1p-expm1-u98.6%
*-commutative98.6%
expm1-log1p-u99.0%
*-commutative99.0%
associate-*l*99.0%
Applied egg-rr99.0%
Taylor expanded in ux around 0 95.8%
Final simplification95.8%
(FPCore (xi yi zi ux uy maxCos) :precision binary32 (+ xi (* zi (* ux (* ux (- (/ maxCos ux) maxCos))))))
float code(float xi, float yi, float zi, float ux, float uy, float maxCos) {
return xi + (zi * (ux * (ux * ((maxCos / ux) - maxCos))));
}
real(4) function code(xi, yi, zi, ux, uy, maxcos)
real(4), intent (in) :: xi
real(4), intent (in) :: yi
real(4), intent (in) :: zi
real(4), intent (in) :: ux
real(4), intent (in) :: uy
real(4), intent (in) :: maxcos
code = xi + (zi * (ux * (ux * ((maxcos / ux) - maxcos))))
end function
function code(xi, yi, zi, ux, uy, maxCos) return Float32(xi + Float32(zi * Float32(ux * Float32(ux * Float32(Float32(maxCos / ux) - maxCos))))) end
function tmp = code(xi, yi, zi, ux, uy, maxCos) tmp = xi + (zi * (ux * (ux * ((maxCos / ux) - maxCos)))); end
\begin{array}{l}
\\
xi + zi \cdot \left(ux \cdot \left(ux \cdot \left(\frac{maxCos}{ux} - maxCos\right)\right)\right)
\end{array}
Initial program 99.0%
associate-*r*99.0%
add-sqr-sqrt95.7%
pow295.7%
associate-*r*95.7%
Applied egg-rr95.7%
Taylor expanded in uy around 0 54.8%
associate-*r*54.8%
unpow254.8%
unpow254.8%
swap-sqr54.8%
unpow254.8%
swap-sqr54.8%
*-commutative54.8%
*-commutative54.8%
unpow254.8%
*-commutative54.8%
Simplified54.8%
Taylor expanded in maxCos around 0 54.8%
Taylor expanded in ux around inf 54.8%
neg-mul-154.8%
+-commutative54.8%
unsub-neg54.8%
Simplified54.8%
Final simplification54.8%
(FPCore (xi yi zi ux uy maxCos) :precision binary32 (+ xi (* zi (* ux (- maxCos (* ux maxCos))))))
float code(float xi, float yi, float zi, float ux, float uy, float maxCos) {
return xi + (zi * (ux * (maxCos - (ux * maxCos))));
}
real(4) function code(xi, yi, zi, ux, uy, maxcos)
real(4), intent (in) :: xi
real(4), intent (in) :: yi
real(4), intent (in) :: zi
real(4), intent (in) :: ux
real(4), intent (in) :: uy
real(4), intent (in) :: maxcos
code = xi + (zi * (ux * (maxcos - (ux * maxcos))))
end function
function code(xi, yi, zi, ux, uy, maxCos) return Float32(xi + Float32(zi * Float32(ux * Float32(maxCos - Float32(ux * maxCos))))) end
function tmp = code(xi, yi, zi, ux, uy, maxCos) tmp = xi + (zi * (ux * (maxCos - (ux * maxCos)))); end
\begin{array}{l}
\\
xi + zi \cdot \left(ux \cdot \left(maxCos - ux \cdot maxCos\right)\right)
\end{array}
Initial program 99.0%
associate-*r*99.0%
add-sqr-sqrt95.7%
pow295.7%
associate-*r*95.7%
Applied egg-rr95.7%
Taylor expanded in uy around 0 54.8%
associate-*r*54.8%
unpow254.8%
unpow254.8%
swap-sqr54.8%
unpow254.8%
swap-sqr54.8%
*-commutative54.8%
*-commutative54.8%
unpow254.8%
*-commutative54.8%
Simplified54.8%
Taylor expanded in maxCos around 0 54.8%
Taylor expanded in ux around 0 54.8%
mul-1-neg54.8%
unsub-neg54.8%
Simplified54.8%
Final simplification54.8%
(FPCore (xi yi zi ux uy maxCos) :precision binary32 (- xi (* maxCos (* ux (* zi (+ ux -1.0))))))
float code(float xi, float yi, float zi, float ux, float uy, float maxCos) {
return xi - (maxCos * (ux * (zi * (ux + -1.0f))));
}
real(4) function code(xi, yi, zi, ux, uy, maxcos)
real(4), intent (in) :: xi
real(4), intent (in) :: yi
real(4), intent (in) :: zi
real(4), intent (in) :: ux
real(4), intent (in) :: uy
real(4), intent (in) :: maxcos
code = xi - (maxcos * (ux * (zi * (ux + (-1.0e0)))))
end function
function code(xi, yi, zi, ux, uy, maxCos) return Float32(xi - Float32(maxCos * Float32(ux * Float32(zi * Float32(ux + Float32(-1.0)))))) end
function tmp = code(xi, yi, zi, ux, uy, maxCos) tmp = xi - (maxCos * (ux * (zi * (ux + single(-1.0))))); end
\begin{array}{l}
\\
xi - maxCos \cdot \left(ux \cdot \left(zi \cdot \left(ux + -1\right)\right)\right)
\end{array}
Initial program 99.0%
associate-*r*99.0%
add-sqr-sqrt95.7%
pow295.7%
associate-*r*95.7%
Applied egg-rr95.7%
Taylor expanded in uy around 0 54.8%
associate-*r*54.8%
unpow254.8%
unpow254.8%
swap-sqr54.8%
unpow254.8%
swap-sqr54.8%
*-commutative54.8%
*-commutative54.8%
unpow254.8%
*-commutative54.8%
Simplified54.8%
Taylor expanded in maxCos around 0 54.8%
Taylor expanded in maxCos around 0 54.8%
*-commutative54.8%
Simplified54.8%
Final simplification54.8%
(FPCore (xi yi zi ux uy maxCos) :precision binary32 (+ xi (* zi (* ux maxCos))))
float code(float xi, float yi, float zi, float ux, float uy, float maxCos) {
return xi + (zi * (ux * maxCos));
}
real(4) function code(xi, yi, zi, ux, uy, maxcos)
real(4), intent (in) :: xi
real(4), intent (in) :: yi
real(4), intent (in) :: zi
real(4), intent (in) :: ux
real(4), intent (in) :: uy
real(4), intent (in) :: maxcos
code = xi + (zi * (ux * maxcos))
end function
function code(xi, yi, zi, ux, uy, maxCos) return Float32(xi + Float32(zi * Float32(ux * maxCos))) end
function tmp = code(xi, yi, zi, ux, uy, maxCos) tmp = xi + (zi * (ux * maxCos)); end
\begin{array}{l}
\\
xi + zi \cdot \left(ux \cdot maxCos\right)
\end{array}
Initial program 99.0%
associate-*r*99.0%
add-sqr-sqrt95.7%
pow295.7%
associate-*r*95.7%
Applied egg-rr95.7%
Taylor expanded in uy around 0 54.8%
associate-*r*54.8%
unpow254.8%
unpow254.8%
swap-sqr54.8%
unpow254.8%
swap-sqr54.8%
*-commutative54.8%
*-commutative54.8%
unpow254.8%
*-commutative54.8%
Simplified54.8%
Taylor expanded in maxCos around 0 54.8%
Taylor expanded in ux around 0 52.8%
Final simplification52.8%
(FPCore (xi yi zi ux uy maxCos) :precision binary32 (+ xi (* maxCos (* ux zi))))
float code(float xi, float yi, float zi, float ux, float uy, float maxCos) {
return xi + (maxCos * (ux * zi));
}
real(4) function code(xi, yi, zi, ux, uy, maxcos)
real(4), intent (in) :: xi
real(4), intent (in) :: yi
real(4), intent (in) :: zi
real(4), intent (in) :: ux
real(4), intent (in) :: uy
real(4), intent (in) :: maxcos
code = xi + (maxcos * (ux * zi))
end function
function code(xi, yi, zi, ux, uy, maxCos) return Float32(xi + Float32(maxCos * Float32(ux * zi))) end
function tmp = code(xi, yi, zi, ux, uy, maxCos) tmp = xi + (maxCos * (ux * zi)); end
\begin{array}{l}
\\
xi + maxCos \cdot \left(ux \cdot zi\right)
\end{array}
Initial program 99.0%
associate-*r*99.0%
add-sqr-sqrt95.7%
pow295.7%
associate-*r*95.7%
Applied egg-rr95.7%
Taylor expanded in uy around 0 54.8%
associate-*r*54.8%
unpow254.8%
unpow254.8%
swap-sqr54.8%
unpow254.8%
swap-sqr54.8%
*-commutative54.8%
*-commutative54.8%
unpow254.8%
*-commutative54.8%
Simplified54.8%
Taylor expanded in maxCos around 0 54.8%
Taylor expanded in ux around 0 52.8%
herbie shell --seed 2024151
(FPCore (xi yi zi ux uy maxCos)
:name "UniformSampleCone 2"
:precision binary32
:pre (and (and (and (and (and (and (<= -10000.0 xi) (<= xi 10000.0)) (and (<= -10000.0 yi) (<= yi 10000.0))) (and (<= -10000.0 zi) (<= zi 10000.0))) (and (<= 2.328306437e-10 ux) (<= ux 1.0))) (and (<= 2.328306437e-10 uy) (<= uy 1.0))) (and (<= 0.0 maxCos) (<= maxCos 1.0)))
(+ (+ (* (* (cos (* (* uy 2.0) PI)) (sqrt (- 1.0 (* (* (* (- 1.0 ux) maxCos) ux) (* (* (- 1.0 ux) maxCos) ux))))) xi) (* (* (sin (* (* uy 2.0) PI)) (sqrt (- 1.0 (* (* (* (- 1.0 ux) maxCos) ux) (* (* (- 1.0 ux) maxCos) ux))))) yi)) (* (* (* (- 1.0 ux) maxCos) ux) zi)))