
(FPCore (ux uy maxCos) :precision binary32 (let* ((t_0 (+ (- 1.0 ux) (* ux maxCos)))) (* (sin (* (* uy 2.0) PI)) (sqrt (- 1.0 (* t_0 t_0))))))
float code(float ux, float uy, float maxCos) {
float t_0 = (1.0f - ux) + (ux * maxCos);
return sinf(((uy * 2.0f) * ((float) M_PI))) * sqrtf((1.0f - (t_0 * t_0)));
}
function code(ux, uy, maxCos) t_0 = Float32(Float32(Float32(1.0) - ux) + Float32(ux * maxCos)) return Float32(sin(Float32(Float32(uy * Float32(2.0)) * Float32(pi))) * sqrt(Float32(Float32(1.0) - Float32(t_0 * t_0)))) end
function tmp = code(ux, uy, maxCos) t_0 = (single(1.0) - ux) + (ux * maxCos); tmp = sin(((uy * single(2.0)) * single(pi))) * sqrt((single(1.0) - (t_0 * t_0))); end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left(1 - ux\right) + ux \cdot maxCos\\
\sin \left(\left(uy \cdot 2\right) \cdot \pi\right) \cdot \sqrt{1 - t_0 \cdot t_0}
\end{array}
\end{array}
Sampling outcomes in binary32 precision:
Herbie found 10 alternatives:
| Alternative | Accuracy | Speedup |
|---|
(FPCore (ux uy maxCos) :precision binary32 (let* ((t_0 (+ (- 1.0 ux) (* ux maxCos)))) (* (sin (* (* uy 2.0) PI)) (sqrt (- 1.0 (* t_0 t_0))))))
float code(float ux, float uy, float maxCos) {
float t_0 = (1.0f - ux) + (ux * maxCos);
return sinf(((uy * 2.0f) * ((float) M_PI))) * sqrtf((1.0f - (t_0 * t_0)));
}
function code(ux, uy, maxCos) t_0 = Float32(Float32(Float32(1.0) - ux) + Float32(ux * maxCos)) return Float32(sin(Float32(Float32(uy * Float32(2.0)) * Float32(pi))) * sqrt(Float32(Float32(1.0) - Float32(t_0 * t_0)))) end
function tmp = code(ux, uy, maxCos) t_0 = (single(1.0) - ux) + (ux * maxCos); tmp = sin(((uy * single(2.0)) * single(pi))) * sqrt((single(1.0) - (t_0 * t_0))); end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left(1 - ux\right) + ux \cdot maxCos\\
\sin \left(\left(uy \cdot 2\right) \cdot \pi\right) \cdot \sqrt{1 - t_0 \cdot t_0}
\end{array}
\end{array}
(FPCore (ux uy maxCos)
:precision binary32
(*
(sin (* uy (* 2.0 PI)))
(sqrt
(fma
ux
(* 2.0 (- 1.0 maxCos))
(* (+ maxCos -1.0) (* (- 1.0 maxCos) (* ux ux)))))))
float code(float ux, float uy, float maxCos) {
return sinf((uy * (2.0f * ((float) M_PI)))) * sqrtf(fmaf(ux, (2.0f * (1.0f - maxCos)), ((maxCos + -1.0f) * ((1.0f - maxCos) * (ux * ux)))));
}
function code(ux, uy, maxCos) return Float32(sin(Float32(uy * Float32(Float32(2.0) * Float32(pi)))) * sqrt(fma(ux, Float32(Float32(2.0) * Float32(Float32(1.0) - maxCos)), Float32(Float32(maxCos + Float32(-1.0)) * Float32(Float32(Float32(1.0) - maxCos) * Float32(ux * ux)))))) end
\begin{array}{l}
\\
\sin \left(uy \cdot \left(2 \cdot \pi\right)\right) \cdot \sqrt{\mathsf{fma}\left(ux, 2 \cdot \left(1 - maxCos\right), \left(maxCos + -1\right) \cdot \left(\left(1 - maxCos\right) \cdot \left(ux \cdot ux\right)\right)\right)}
\end{array}
Initial program 59.2%
associate-*l*59.2%
sub-neg59.2%
+-commutative59.2%
distribute-rgt-neg-in59.2%
fma-def59.2%
+-commutative59.2%
associate-+r-59.1%
fma-def59.1%
neg-sub059.1%
+-commutative59.1%
associate-+r-59.0%
associate--r-59.0%
neg-sub059.0%
+-commutative59.0%
sub-neg59.0%
fma-def59.0%
Simplified59.0%
Taylor expanded in ux around 0 98.2%
+-commutative98.2%
fma-def98.2%
+-commutative98.2%
mul-1-neg98.2%
sub-neg98.2%
metadata-eval98.2%
distribute-neg-in98.2%
metadata-eval98.2%
+-commutative98.2%
mul-1-neg98.2%
associate--l+98.2%
mul-1-neg98.2%
sub-neg98.2%
sub-neg98.2%
metadata-eval98.2%
*-commutative98.2%
unpow298.2%
Simplified98.2%
pow198.2%
count-298.2%
*-commutative98.2%
Applied egg-rr98.2%
unpow198.2%
Simplified98.2%
Final simplification98.2%
(FPCore (ux uy maxCos) :precision binary32 (* (sin (* PI (* uy 2.0))) (sqrt (* (* ux (- 1.0 maxCos)) (+ 2.0 (* ux (+ maxCos -1.0)))))))
float code(float ux, float uy, float maxCos) {
return sinf((((float) M_PI) * (uy * 2.0f))) * sqrtf(((ux * (1.0f - maxCos)) * (2.0f + (ux * (maxCos + -1.0f)))));
}
function code(ux, uy, maxCos) return Float32(sin(Float32(Float32(pi) * Float32(uy * Float32(2.0)))) * sqrt(Float32(Float32(ux * Float32(Float32(1.0) - maxCos)) * Float32(Float32(2.0) + Float32(ux * Float32(maxCos + Float32(-1.0))))))) end
function tmp = code(ux, uy, maxCos) tmp = sin((single(pi) * (uy * single(2.0)))) * sqrt(((ux * (single(1.0) - maxCos)) * (single(2.0) + (ux * (maxCos + single(-1.0)))))); end
\begin{array}{l}
\\
\sin \left(\pi \cdot \left(uy \cdot 2\right)\right) \cdot \sqrt{\left(ux \cdot \left(1 - maxCos\right)\right) \cdot \left(2 + ux \cdot \left(maxCos + -1\right)\right)}
\end{array}
Initial program 59.2%
associate-*l*59.2%
sub-neg59.2%
+-commutative59.2%
distribute-rgt-neg-in59.2%
fma-def59.2%
+-commutative59.2%
associate-+r-59.1%
fma-def59.1%
neg-sub059.1%
+-commutative59.1%
associate-+r-59.0%
associate--r-59.0%
neg-sub059.0%
+-commutative59.0%
sub-neg59.0%
fma-def59.0%
Simplified59.0%
Taylor expanded in ux around 0 98.2%
+-commutative98.2%
fma-def98.2%
+-commutative98.2%
mul-1-neg98.2%
sub-neg98.2%
metadata-eval98.2%
distribute-neg-in98.2%
metadata-eval98.2%
+-commutative98.2%
mul-1-neg98.2%
associate--l+98.2%
mul-1-neg98.2%
sub-neg98.2%
sub-neg98.2%
metadata-eval98.2%
*-commutative98.2%
unpow298.2%
Simplified98.2%
pow198.2%
count-298.2%
*-commutative98.2%
Applied egg-rr98.2%
unpow198.2%
Simplified98.2%
Taylor expanded in uy around inf 98.2%
*-commutative98.2%
associate-*r*98.2%
*-commutative98.2%
*-commutative98.2%
*-commutative98.2%
*-commutative98.2%
*-commutative98.2%
unpow298.2%
associate-*r*98.2%
associate-*r*98.2%
distribute-rgt-out98.2%
*-commutative98.2%
*-commutative98.2%
sub-neg98.2%
metadata-eval98.2%
Simplified98.2%
Final simplification98.2%
(FPCore (ux uy maxCos)
:precision binary32
(if (<= (* uy 2.0) 0.007600000128149986)
(*
(* PI (* uy 2.0))
(sqrt (* (* ux (- 1.0 maxCos)) (+ 2.0 (* ux (+ maxCos -1.0))))))
(* (sin (* uy (* 2.0 PI))) (sqrt (* 2.0 ux)))))
float code(float ux, float uy, float maxCos) {
float tmp;
if ((uy * 2.0f) <= 0.007600000128149986f) {
tmp = (((float) M_PI) * (uy * 2.0f)) * sqrtf(((ux * (1.0f - maxCos)) * (2.0f + (ux * (maxCos + -1.0f)))));
} else {
tmp = sinf((uy * (2.0f * ((float) M_PI)))) * sqrtf((2.0f * ux));
}
return tmp;
}
function code(ux, uy, maxCos) tmp = Float32(0.0) if (Float32(uy * Float32(2.0)) <= Float32(0.007600000128149986)) tmp = Float32(Float32(Float32(pi) * Float32(uy * Float32(2.0))) * sqrt(Float32(Float32(ux * Float32(Float32(1.0) - maxCos)) * Float32(Float32(2.0) + Float32(ux * Float32(maxCos + Float32(-1.0))))))); else tmp = Float32(sin(Float32(uy * Float32(Float32(2.0) * Float32(pi)))) * sqrt(Float32(Float32(2.0) * ux))); end return tmp end
function tmp_2 = code(ux, uy, maxCos) tmp = single(0.0); if ((uy * single(2.0)) <= single(0.007600000128149986)) tmp = (single(pi) * (uy * single(2.0))) * sqrt(((ux * (single(1.0) - maxCos)) * (single(2.0) + (ux * (maxCos + single(-1.0)))))); else tmp = sin((uy * (single(2.0) * single(pi)))) * sqrt((single(2.0) * ux)); end tmp_2 = tmp; end
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;uy \cdot 2 \leq 0.007600000128149986:\\
\;\;\;\;\left(\pi \cdot \left(uy \cdot 2\right)\right) \cdot \sqrt{\left(ux \cdot \left(1 - maxCos\right)\right) \cdot \left(2 + ux \cdot \left(maxCos + -1\right)\right)}\\
\mathbf{else}:\\
\;\;\;\;\sin \left(uy \cdot \left(2 \cdot \pi\right)\right) \cdot \sqrt{2 \cdot ux}\\
\end{array}
\end{array}
if (*.f32 uy 2) < 0.00760000013Initial program 60.5%
associate-*l*60.5%
sub-neg60.5%
+-commutative60.5%
distribute-rgt-neg-in60.5%
fma-def60.5%
+-commutative60.5%
associate-+r-60.5%
fma-def60.5%
neg-sub060.5%
+-commutative60.5%
associate-+r-60.4%
associate--r-60.4%
neg-sub060.4%
+-commutative60.4%
sub-neg60.4%
fma-def60.4%
Simplified60.4%
Taylor expanded in ux around 0 98.5%
+-commutative98.5%
fma-def98.5%
+-commutative98.5%
mul-1-neg98.5%
sub-neg98.5%
metadata-eval98.5%
distribute-neg-in98.5%
metadata-eval98.5%
+-commutative98.5%
mul-1-neg98.5%
associate--l+98.5%
mul-1-neg98.5%
sub-neg98.5%
sub-neg98.5%
metadata-eval98.5%
*-commutative98.5%
unpow298.5%
Simplified98.5%
pow198.5%
count-298.5%
*-commutative98.5%
Applied egg-rr98.5%
unpow198.5%
Simplified98.5%
Taylor expanded in uy around 0 94.9%
associate-*r*94.9%
associate-*r*94.9%
*-commutative94.9%
*-commutative94.9%
*-commutative94.9%
Simplified94.9%
if 0.00760000013 < (*.f32 uy 2) Initial program 55.1%
associate-*l*55.1%
sub-neg55.1%
+-commutative55.1%
distribute-rgt-neg-in55.1%
fma-def54.8%
+-commutative54.8%
associate-+r-54.7%
fma-def54.7%
neg-sub054.7%
+-commutative54.7%
associate-+r-54.7%
associate--r-54.7%
neg-sub054.7%
+-commutative54.7%
sub-neg54.7%
fma-def54.7%
Simplified54.7%
Taylor expanded in maxCos around 0 51.7%
+-commutative51.7%
fma-def51.4%
sub-neg51.4%
metadata-eval51.4%
Simplified51.4%
Taylor expanded in ux around 0 75.1%
Final simplification90.2%
(FPCore (ux uy maxCos) :precision binary32 (* (sin (* PI (* uy 2.0))) (sqrt (- (* 2.0 ux) (* ux ux)))))
float code(float ux, float uy, float maxCos) {
return sinf((((float) M_PI) * (uy * 2.0f))) * sqrtf(((2.0f * ux) - (ux * ux)));
}
function code(ux, uy, maxCos) return Float32(sin(Float32(Float32(pi) * Float32(uy * Float32(2.0)))) * sqrt(Float32(Float32(Float32(2.0) * ux) - Float32(ux * ux)))) end
function tmp = code(ux, uy, maxCos) tmp = sin((single(pi) * (uy * single(2.0)))) * sqrt(((single(2.0) * ux) - (ux * ux))); end
\begin{array}{l}
\\
\sin \left(\pi \cdot \left(uy \cdot 2\right)\right) \cdot \sqrt{2 \cdot ux - ux \cdot ux}
\end{array}
Initial program 59.2%
associate-*l*59.2%
sub-neg59.2%
+-commutative59.2%
distribute-rgt-neg-in59.2%
fma-def59.2%
+-commutative59.2%
associate-+r-59.1%
fma-def59.1%
neg-sub059.1%
+-commutative59.1%
associate-+r-59.0%
associate--r-59.0%
neg-sub059.0%
+-commutative59.0%
sub-neg59.0%
fma-def59.0%
Simplified59.0%
Taylor expanded in ux around 0 98.2%
+-commutative98.2%
fma-def98.2%
+-commutative98.2%
mul-1-neg98.2%
sub-neg98.2%
metadata-eval98.2%
distribute-neg-in98.2%
metadata-eval98.2%
+-commutative98.2%
mul-1-neg98.2%
associate--l+98.2%
mul-1-neg98.2%
sub-neg98.2%
sub-neg98.2%
metadata-eval98.2%
*-commutative98.2%
unpow298.2%
Simplified98.2%
Taylor expanded in maxCos around 0 93.4%
associate-*r*93.4%
+-commutative93.4%
mul-1-neg93.4%
unsub-neg93.4%
unpow293.4%
Simplified93.4%
Final simplification93.4%
(FPCore (ux uy maxCos) :precision binary32 (* (sin (* PI (* uy 2.0))) (sqrt (* ux (- 2.0 ux)))))
float code(float ux, float uy, float maxCos) {
return sinf((((float) M_PI) * (uy * 2.0f))) * sqrtf((ux * (2.0f - ux)));
}
function code(ux, uy, maxCos) return Float32(sin(Float32(Float32(pi) * Float32(uy * Float32(2.0)))) * sqrt(Float32(ux * Float32(Float32(2.0) - ux)))) end
function tmp = code(ux, uy, maxCos) tmp = sin((single(pi) * (uy * single(2.0)))) * sqrt((ux * (single(2.0) - ux))); end
\begin{array}{l}
\\
\sin \left(\pi \cdot \left(uy \cdot 2\right)\right) \cdot \sqrt{ux \cdot \left(2 - ux\right)}
\end{array}
Initial program 59.2%
associate-*l*59.2%
sub-neg59.2%
+-commutative59.2%
distribute-rgt-neg-in59.2%
fma-def59.2%
+-commutative59.2%
associate-+r-59.1%
fma-def59.1%
neg-sub059.1%
+-commutative59.1%
associate-+r-59.0%
associate--r-59.0%
neg-sub059.0%
+-commutative59.0%
sub-neg59.0%
fma-def59.0%
Simplified59.0%
Taylor expanded in ux around 0 98.2%
+-commutative98.2%
fma-def98.2%
+-commutative98.2%
mul-1-neg98.2%
sub-neg98.2%
metadata-eval98.2%
distribute-neg-in98.2%
metadata-eval98.2%
+-commutative98.2%
mul-1-neg98.2%
associate--l+98.2%
mul-1-neg98.2%
sub-neg98.2%
sub-neg98.2%
metadata-eval98.2%
*-commutative98.2%
unpow298.2%
Simplified98.2%
pow198.2%
count-298.2%
*-commutative98.2%
Applied egg-rr98.2%
unpow198.2%
Simplified98.2%
Taylor expanded in uy around inf 98.2%
*-commutative98.2%
associate-*r*98.2%
*-commutative98.2%
*-commutative98.2%
*-commutative98.2%
*-commutative98.2%
*-commutative98.2%
unpow298.2%
associate-*r*98.2%
associate-*r*98.2%
distribute-rgt-out98.2%
*-commutative98.2%
*-commutative98.2%
sub-neg98.2%
metadata-eval98.2%
Simplified98.2%
Taylor expanded in maxCos around 0 93.3%
*-commutative93.3%
associate-*r*93.3%
*-commutative93.3%
+-commutative93.3%
mul-1-neg93.3%
sub-neg93.3%
*-commutative93.3%
Simplified93.3%
Final simplification93.3%
(FPCore (ux uy maxCos) :precision binary32 (* (* PI (* uy 2.0)) (sqrt (* (* ux (- 1.0 maxCos)) (+ 2.0 (* ux (+ maxCos -1.0)))))))
float code(float ux, float uy, float maxCos) {
return (((float) M_PI) * (uy * 2.0f)) * sqrtf(((ux * (1.0f - maxCos)) * (2.0f + (ux * (maxCos + -1.0f)))));
}
function code(ux, uy, maxCos) return Float32(Float32(Float32(pi) * Float32(uy * Float32(2.0))) * sqrt(Float32(Float32(ux * Float32(Float32(1.0) - maxCos)) * Float32(Float32(2.0) + Float32(ux * Float32(maxCos + Float32(-1.0))))))) end
function tmp = code(ux, uy, maxCos) tmp = (single(pi) * (uy * single(2.0))) * sqrt(((ux * (single(1.0) - maxCos)) * (single(2.0) + (ux * (maxCos + single(-1.0)))))); end
\begin{array}{l}
\\
\left(\pi \cdot \left(uy \cdot 2\right)\right) \cdot \sqrt{\left(ux \cdot \left(1 - maxCos\right)\right) \cdot \left(2 + ux \cdot \left(maxCos + -1\right)\right)}
\end{array}
Initial program 59.2%
associate-*l*59.2%
sub-neg59.2%
+-commutative59.2%
distribute-rgt-neg-in59.2%
fma-def59.2%
+-commutative59.2%
associate-+r-59.1%
fma-def59.1%
neg-sub059.1%
+-commutative59.1%
associate-+r-59.0%
associate--r-59.0%
neg-sub059.0%
+-commutative59.0%
sub-neg59.0%
fma-def59.0%
Simplified59.0%
Taylor expanded in ux around 0 98.2%
+-commutative98.2%
fma-def98.2%
+-commutative98.2%
mul-1-neg98.2%
sub-neg98.2%
metadata-eval98.2%
distribute-neg-in98.2%
metadata-eval98.2%
+-commutative98.2%
mul-1-neg98.2%
associate--l+98.2%
mul-1-neg98.2%
sub-neg98.2%
sub-neg98.2%
metadata-eval98.2%
*-commutative98.2%
unpow298.2%
Simplified98.2%
pow198.2%
count-298.2%
*-commutative98.2%
Applied egg-rr98.2%
unpow198.2%
Simplified98.2%
Taylor expanded in uy around 0 81.7%
associate-*r*81.7%
associate-*r*81.7%
*-commutative81.7%
*-commutative81.7%
*-commutative81.7%
Simplified81.7%
Final simplification81.7%
(FPCore (ux uy maxCos) :precision binary32 (* 2.0 (* (sqrt (- (* 2.0 ux) (* ux ux))) (* uy PI))))
float code(float ux, float uy, float maxCos) {
return 2.0f * (sqrtf(((2.0f * ux) - (ux * ux))) * (uy * ((float) M_PI)));
}
function code(ux, uy, maxCos) return Float32(Float32(2.0) * Float32(sqrt(Float32(Float32(Float32(2.0) * ux) - Float32(ux * ux))) * Float32(uy * Float32(pi)))) end
function tmp = code(ux, uy, maxCos) tmp = single(2.0) * (sqrt(((single(2.0) * ux) - (ux * ux))) * (uy * single(pi))); end
\begin{array}{l}
\\
2 \cdot \left(\sqrt{2 \cdot ux - ux \cdot ux} \cdot \left(uy \cdot \pi\right)\right)
\end{array}
Initial program 59.2%
associate-*l*59.2%
sub-neg59.2%
+-commutative59.2%
distribute-rgt-neg-in59.2%
fma-def59.2%
+-commutative59.2%
associate-+r-59.1%
fma-def59.1%
neg-sub059.1%
+-commutative59.1%
associate-+r-59.0%
associate--r-59.0%
neg-sub059.0%
+-commutative59.0%
sub-neg59.0%
fma-def59.0%
Simplified59.0%
Taylor expanded in uy around 0 51.8%
Taylor expanded in ux around 0 81.7%
+-commutative81.7%
associate-*r*81.7%
*-commutative81.7%
associate-*r*81.7%
fma-def81.7%
+-commutative81.7%
mul-1-neg81.7%
sub-neg81.7%
metadata-eval81.7%
distribute-neg-in81.7%
metadata-eval81.7%
+-commutative81.7%
sub-neg81.7%
associate--l+81.7%
unpow281.7%
sub-neg81.7%
metadata-eval81.7%
associate-*r*81.7%
Simplified81.7%
Taylor expanded in maxCos around 0 78.5%
+-commutative78.5%
mul-1-neg78.5%
unsub-neg78.5%
unpow278.5%
Simplified78.5%
Final simplification78.5%
(FPCore (ux uy maxCos) :precision binary32 (* 2.0 (* PI (* uy (sqrt (* ux (- 2.0 ux)))))))
float code(float ux, float uy, float maxCos) {
return 2.0f * (((float) M_PI) * (uy * sqrtf((ux * (2.0f - ux)))));
}
function code(ux, uy, maxCos) return Float32(Float32(2.0) * Float32(Float32(pi) * Float32(uy * sqrt(Float32(ux * Float32(Float32(2.0) - ux)))))) end
function tmp = code(ux, uy, maxCos) tmp = single(2.0) * (single(pi) * (uy * sqrt((ux * (single(2.0) - ux))))); end
\begin{array}{l}
\\
2 \cdot \left(\pi \cdot \left(uy \cdot \sqrt{ux \cdot \left(2 - ux\right)}\right)\right)
\end{array}
Initial program 59.2%
associate-*l*59.2%
sub-neg59.2%
+-commutative59.2%
distribute-rgt-neg-in59.2%
fma-def59.2%
+-commutative59.2%
associate-+r-59.1%
fma-def59.1%
neg-sub059.1%
+-commutative59.1%
associate-+r-59.0%
associate--r-59.0%
neg-sub059.0%
+-commutative59.0%
sub-neg59.0%
fma-def59.0%
Simplified59.0%
Taylor expanded in uy around 0 51.8%
Taylor expanded in ux around 0 81.7%
+-commutative81.7%
associate-*r*81.7%
*-commutative81.7%
associate-*r*81.7%
fma-def81.7%
+-commutative81.7%
mul-1-neg81.7%
sub-neg81.7%
metadata-eval81.7%
distribute-neg-in81.7%
metadata-eval81.7%
+-commutative81.7%
sub-neg81.7%
associate--l+81.7%
unpow281.7%
sub-neg81.7%
metadata-eval81.7%
associate-*r*81.7%
Simplified81.7%
Taylor expanded in maxCos around 0 78.5%
+-commutative78.5%
mul-1-neg78.5%
unsub-neg78.5%
unpow278.5%
Simplified78.5%
Taylor expanded in uy around 0 78.5%
*-commutative78.5%
*-commutative78.5%
unpow278.5%
distribute-rgt-out--78.4%
associate-*l*78.3%
Simplified78.3%
Final simplification78.3%
(FPCore (ux uy maxCos) :precision binary32 (* 2.0 (* (sqrt (* ux (- 2.0 ux))) (* uy PI))))
float code(float ux, float uy, float maxCos) {
return 2.0f * (sqrtf((ux * (2.0f - ux))) * (uy * ((float) M_PI)));
}
function code(ux, uy, maxCos) return Float32(Float32(2.0) * Float32(sqrt(Float32(ux * Float32(Float32(2.0) - ux))) * Float32(uy * Float32(pi)))) end
function tmp = code(ux, uy, maxCos) tmp = single(2.0) * (sqrt((ux * (single(2.0) - ux))) * (uy * single(pi))); end
\begin{array}{l}
\\
2 \cdot \left(\sqrt{ux \cdot \left(2 - ux\right)} \cdot \left(uy \cdot \pi\right)\right)
\end{array}
Initial program 59.2%
associate-*l*59.2%
sub-neg59.2%
+-commutative59.2%
distribute-rgt-neg-in59.2%
fma-def59.2%
+-commutative59.2%
associate-+r-59.1%
fma-def59.1%
neg-sub059.1%
+-commutative59.1%
associate-+r-59.0%
associate--r-59.0%
neg-sub059.0%
+-commutative59.0%
sub-neg59.0%
fma-def59.0%
Simplified59.0%
Taylor expanded in uy around 0 51.8%
Taylor expanded in ux around 0 81.7%
+-commutative81.7%
associate-*r*81.7%
*-commutative81.7%
associate-*r*81.7%
fma-def81.7%
+-commutative81.7%
mul-1-neg81.7%
sub-neg81.7%
metadata-eval81.7%
distribute-neg-in81.7%
metadata-eval81.7%
+-commutative81.7%
sub-neg81.7%
associate--l+81.7%
unpow281.7%
sub-neg81.7%
metadata-eval81.7%
associate-*r*81.7%
Simplified81.7%
expm1-log1p-u81.7%
expm1-udef71.1%
count-271.1%
associate-*r*71.1%
*-commutative71.1%
associate-*l*71.1%
Applied egg-rr71.1%
expm1-def81.7%
expm1-log1p81.7%
fma-udef81.7%
sub-neg81.7%
distribute-lft-in81.7%
metadata-eval81.7%
distribute-rgt-neg-in81.7%
sub-neg81.7%
*-commutative81.7%
metadata-eval81.7%
sub-neg81.7%
associate-*r*81.7%
unpow281.7%
*-commutative81.7%
Simplified81.7%
Taylor expanded in maxCos around 0 78.5%
+-commutative78.5%
mul-1-neg78.5%
sub-neg78.5%
unpow278.5%
distribute-rgt-out--78.4%
Simplified78.4%
Final simplification78.4%
(FPCore (ux uy maxCos) :precision binary32 (* 2.0 (* (* uy PI) (sqrt 0.0))))
float code(float ux, float uy, float maxCos) {
return 2.0f * ((uy * ((float) M_PI)) * sqrtf(0.0f));
}
function code(ux, uy, maxCos) return Float32(Float32(2.0) * Float32(Float32(uy * Float32(pi)) * sqrt(Float32(0.0)))) end
function tmp = code(ux, uy, maxCos) tmp = single(2.0) * ((uy * single(pi)) * sqrt(single(0.0))); end
\begin{array}{l}
\\
2 \cdot \left(\left(uy \cdot \pi\right) \cdot \sqrt{0}\right)
\end{array}
Initial program 59.2%
associate-*l*59.2%
sub-neg59.2%
+-commutative59.2%
distribute-rgt-neg-in59.2%
fma-def59.2%
+-commutative59.2%
associate-+r-59.1%
fma-def59.1%
neg-sub059.1%
+-commutative59.1%
associate-+r-59.0%
associate--r-59.0%
neg-sub059.0%
+-commutative59.0%
sub-neg59.0%
fma-def59.0%
Simplified59.0%
Taylor expanded in uy around 0 51.8%
Taylor expanded in ux around 0 7.1%
Final simplification7.1%
herbie shell --seed 2023187
(FPCore (ux uy maxCos)
:name "UniformSampleCone, y"
:precision binary32
:pre (and (and (and (<= 2.328306437e-10 ux) (<= ux 1.0)) (and (<= 2.328306437e-10 uy) (<= uy 1.0))) (and (<= 0.0 maxCos) (<= maxCos 1.0)))
(* (sin (* (* uy 2.0) PI)) (sqrt (- 1.0 (* (+ (- 1.0 ux) (* ux maxCos)) (+ (- 1.0 ux) (* ux maxCos)))))))