
(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 8 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 (* (sqrt (* (* ux (- 1.0 maxCos)) (+ 2.0 (* ux (+ maxCos -1.0))))) (sin (* uy (* 2.0 PI)))))
float code(float ux, float uy, float maxCos) {
return sqrtf(((ux * (1.0f - maxCos)) * (2.0f + (ux * (maxCos + -1.0f))))) * sinf((uy * (2.0f * ((float) M_PI))));
}
function code(ux, uy, maxCos) return Float32(sqrt(Float32(Float32(ux * Float32(Float32(1.0) - maxCos)) * Float32(Float32(2.0) + Float32(ux * Float32(maxCos + Float32(-1.0)))))) * sin(Float32(uy * Float32(Float32(2.0) * Float32(pi))))) end
function tmp = code(ux, uy, maxCos) tmp = sqrt(((ux * (single(1.0) - maxCos)) * (single(2.0) + (ux * (maxCos + single(-1.0)))))) * sin((uy * (single(2.0) * single(pi)))); end
\begin{array}{l}
\\
\sqrt{\left(ux \cdot \left(1 - maxCos\right)\right) \cdot \left(2 + ux \cdot \left(maxCos + -1\right)\right)} \cdot \sin \left(uy \cdot \left(2 \cdot \pi\right)\right)
\end{array}
Initial program 57.1%
associate-*l*57.1%
sub-neg57.1%
+-commutative57.1%
distribute-rgt-neg-in57.1%
fma-def57.1%
+-commutative57.1%
associate-+r-57.2%
fma-def57.2%
neg-sub057.2%
+-commutative57.2%
associate-+r-57.0%
associate--r-57.0%
neg-sub057.0%
+-commutative57.0%
sub-neg57.0%
fma-def57.0%
Simplified57.0%
Taylor expanded in ux around 0 98.2%
+-commutative98.2%
fma-def98.3%
+-commutative98.3%
mul-1-neg98.3%
sub-neg98.3%
metadata-eval98.3%
distribute-neg-in98.3%
metadata-eval98.3%
+-commutative98.3%
mul-1-neg98.3%
associate--l+98.3%
mul-1-neg98.3%
sub-neg98.3%
sub-neg98.3%
metadata-eval98.3%
*-commutative98.3%
unpow298.3%
Simplified98.3%
pow198.3%
count-298.3%
*-commutative98.3%
Applied egg-rr98.3%
unpow198.3%
associate-*r*98.3%
Simplified98.3%
Taylor expanded in uy around inf 98.3%
Simplified98.4%
Final simplification98.4%
(FPCore (ux uy maxCos)
:precision binary32
(if (<= uy 0.0001900000061141327)
(*
(sqrt (* (* ux (- 1.0 maxCos)) (+ 2.0 (* ux (+ maxCos -1.0)))))
(* uy (* 2.0 PI)))
(* (sin (* 2.0 (* uy PI))) (sqrt (* (+ ux -2.0) (- ux))))))
float code(float ux, float uy, float maxCos) {
float tmp;
if (uy <= 0.0001900000061141327f) {
tmp = sqrtf(((ux * (1.0f - maxCos)) * (2.0f + (ux * (maxCos + -1.0f))))) * (uy * (2.0f * ((float) M_PI)));
} else {
tmp = sinf((2.0f * (uy * ((float) M_PI)))) * sqrtf(((ux + -2.0f) * -ux));
}
return tmp;
}
function code(ux, uy, maxCos) tmp = Float32(0.0) if (uy <= Float32(0.0001900000061141327)) tmp = Float32(sqrt(Float32(Float32(ux * Float32(Float32(1.0) - maxCos)) * Float32(Float32(2.0) + Float32(ux * Float32(maxCos + Float32(-1.0)))))) * Float32(uy * Float32(Float32(2.0) * Float32(pi)))); else tmp = Float32(sin(Float32(Float32(2.0) * Float32(uy * Float32(pi)))) * sqrt(Float32(Float32(ux + Float32(-2.0)) * Float32(-ux)))); end return tmp end
function tmp_2 = code(ux, uy, maxCos) tmp = single(0.0); if (uy <= single(0.0001900000061141327)) tmp = sqrt(((ux * (single(1.0) - maxCos)) * (single(2.0) + (ux * (maxCos + single(-1.0)))))) * (uy * (single(2.0) * single(pi))); else tmp = sin((single(2.0) * (uy * single(pi)))) * sqrt(((ux + single(-2.0)) * -ux)); end tmp_2 = tmp; end
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;uy \leq 0.0001900000061141327:\\
\;\;\;\;\sqrt{\left(ux \cdot \left(1 - maxCos\right)\right) \cdot \left(2 + ux \cdot \left(maxCos + -1\right)\right)} \cdot \left(uy \cdot \left(2 \cdot \pi\right)\right)\\
\mathbf{else}:\\
\;\;\;\;\sin \left(2 \cdot \left(uy \cdot \pi\right)\right) \cdot \sqrt{\left(ux + -2\right) \cdot \left(-ux\right)}\\
\end{array}
\end{array}
if uy < 1.90000006e-4Initial program 57.9%
associate-*l*57.9%
sub-neg57.9%
+-commutative57.9%
distribute-rgt-neg-in57.9%
fma-def57.9%
+-commutative57.9%
associate-+r-57.9%
fma-def57.9%
neg-sub057.9%
+-commutative57.9%
associate-+r-57.7%
associate--r-57.7%
neg-sub057.7%
+-commutative57.7%
sub-neg57.7%
fma-def57.7%
Simplified57.7%
Taylor expanded in ux around 0 98.3%
+-commutative98.3%
fma-def98.4%
+-commutative98.4%
mul-1-neg98.4%
sub-neg98.4%
metadata-eval98.4%
distribute-neg-in98.4%
metadata-eval98.4%
+-commutative98.4%
mul-1-neg98.4%
associate--l+98.4%
mul-1-neg98.4%
sub-neg98.4%
sub-neg98.4%
metadata-eval98.4%
*-commutative98.4%
unpow298.4%
Simplified98.4%
pow198.4%
count-298.4%
*-commutative98.4%
Applied egg-rr98.4%
unpow198.4%
associate-*r*98.4%
Simplified98.4%
Taylor expanded in uy around 0 98.1%
associate-*r*98.1%
*-commutative98.1%
*-commutative98.1%
Simplified98.2%
if 1.90000006e-4 < uy Initial program 55.7%
associate-*l*55.7%
sub-neg55.7%
+-commutative55.7%
distribute-rgt-neg-in55.7%
fma-def55.8%
+-commutative55.8%
associate-+r-55.9%
fma-def55.9%
neg-sub055.9%
+-commutative55.9%
associate-+r-55.7%
associate--r-55.7%
neg-sub055.7%
+-commutative55.7%
sub-neg55.7%
fma-def55.7%
Simplified55.7%
Taylor expanded in ux around 0 98.0%
+-commutative98.0%
fma-def98.0%
+-commutative98.0%
mul-1-neg98.0%
sub-neg98.0%
metadata-eval98.0%
distribute-neg-in98.0%
metadata-eval98.0%
+-commutative98.0%
mul-1-neg98.0%
associate--l+98.1%
mul-1-neg98.1%
sub-neg98.1%
sub-neg98.1%
metadata-eval98.1%
*-commutative98.1%
unpow298.1%
Simplified98.1%
*-commutative98.1%
add-cbrt-cube98.1%
add-cbrt-cube98.1%
cbrt-unprod97.8%
pow397.8%
pow397.8%
Applied egg-rr97.8%
Taylor expanded in maxCos around 0 92.8%
*-commutative92.8%
metadata-eval92.8%
associate-*l*92.8%
*-commutative92.8%
*-commutative92.8%
distribute-lft-in92.8%
mul-1-neg92.8%
unpow292.8%
distribute-rgt-out92.9%
Simplified92.9%
Final simplification96.3%
(FPCore (ux uy maxCos)
:precision binary32
(let* ((t_0 (* uy (* 2.0 PI))))
(if (<= uy 0.003000000026077032)
(* (sqrt (* (* ux (- 1.0 maxCos)) (+ 2.0 (* ux (+ maxCos -1.0))))) t_0)
(* (sin t_0) (sqrt (* ux 2.0))))))
float code(float ux, float uy, float maxCos) {
float t_0 = uy * (2.0f * ((float) M_PI));
float tmp;
if (uy <= 0.003000000026077032f) {
tmp = sqrtf(((ux * (1.0f - maxCos)) * (2.0f + (ux * (maxCos + -1.0f))))) * t_0;
} else {
tmp = sinf(t_0) * sqrtf((ux * 2.0f));
}
return tmp;
}
function code(ux, uy, maxCos) t_0 = Float32(uy * Float32(Float32(2.0) * Float32(pi))) tmp = Float32(0.0) if (uy <= Float32(0.003000000026077032)) tmp = Float32(sqrt(Float32(Float32(ux * Float32(Float32(1.0) - maxCos)) * Float32(Float32(2.0) + Float32(ux * Float32(maxCos + Float32(-1.0)))))) * t_0); else tmp = Float32(sin(t_0) * sqrt(Float32(ux * Float32(2.0)))); end return tmp end
function tmp_2 = code(ux, uy, maxCos) t_0 = uy * (single(2.0) * single(pi)); tmp = single(0.0); if (uy <= single(0.003000000026077032)) tmp = sqrt(((ux * (single(1.0) - maxCos)) * (single(2.0) + (ux * (maxCos + single(-1.0)))))) * t_0; else tmp = sin(t_0) * sqrt((ux * single(2.0))); end tmp_2 = tmp; end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := uy \cdot \left(2 \cdot \pi\right)\\
\mathbf{if}\;uy \leq 0.003000000026077032:\\
\;\;\;\;\sqrt{\left(ux \cdot \left(1 - maxCos\right)\right) \cdot \left(2 + ux \cdot \left(maxCos + -1\right)\right)} \cdot t_0\\
\mathbf{else}:\\
\;\;\;\;\sin t_0 \cdot \sqrt{ux \cdot 2}\\
\end{array}
\end{array}
if uy < 0.00300000003Initial program 56.7%
associate-*l*56.7%
sub-neg56.7%
+-commutative56.7%
distribute-rgt-neg-in56.7%
fma-def56.6%
+-commutative56.6%
associate-+r-56.7%
fma-def56.7%
neg-sub056.7%
+-commutative56.7%
associate-+r-56.5%
associate--r-56.5%
neg-sub056.5%
+-commutative56.5%
sub-neg56.5%
fma-def56.5%
Simplified56.5%
Taylor expanded in ux around 0 98.3%
+-commutative98.3%
fma-def98.4%
+-commutative98.4%
mul-1-neg98.4%
sub-neg98.4%
metadata-eval98.4%
distribute-neg-in98.4%
metadata-eval98.4%
+-commutative98.4%
mul-1-neg98.4%
associate--l+98.4%
mul-1-neg98.4%
sub-neg98.4%
sub-neg98.4%
metadata-eval98.4%
*-commutative98.4%
unpow298.4%
Simplified98.4%
pow198.4%
count-298.4%
*-commutative98.4%
Applied egg-rr98.4%
unpow198.4%
associate-*r*98.4%
Simplified98.4%
Taylor expanded in uy around 0 95.3%
associate-*r*95.3%
*-commutative95.3%
*-commutative95.3%
Simplified95.4%
if 0.00300000003 < uy Initial program 58.4%
associate-*l*58.4%
sub-neg58.4%
+-commutative58.4%
distribute-rgt-neg-in58.4%
fma-def58.6%
+-commutative58.6%
associate-+r-58.8%
fma-def58.8%
neg-sub058.8%
+-commutative58.8%
associate-+r-58.6%
associate--r-58.6%
neg-sub058.6%
+-commutative58.6%
sub-neg58.6%
fma-def58.6%
Simplified58.6%
Taylor expanded in ux around 0 76.7%
mul-1-neg76.7%
sub-neg76.7%
metadata-eval76.7%
Simplified76.7%
Taylor expanded in maxCos around 0 72.8%
Final simplification90.2%
(FPCore (ux uy maxCos) :precision binary32 (* (sqrt (* (* ux (- 1.0 maxCos)) (+ 2.0 (* ux (+ maxCos -1.0))))) (* uy (* 2.0 PI))))
float code(float ux, float uy, float maxCos) {
return sqrtf(((ux * (1.0f - maxCos)) * (2.0f + (ux * (maxCos + -1.0f))))) * (uy * (2.0f * ((float) M_PI)));
}
function code(ux, uy, maxCos) return Float32(sqrt(Float32(Float32(ux * Float32(Float32(1.0) - maxCos)) * Float32(Float32(2.0) + Float32(ux * Float32(maxCos + Float32(-1.0)))))) * Float32(uy * Float32(Float32(2.0) * Float32(pi)))) end
function tmp = code(ux, uy, maxCos) tmp = sqrt(((ux * (single(1.0) - maxCos)) * (single(2.0) + (ux * (maxCos + single(-1.0)))))) * (uy * (single(2.0) * single(pi))); end
\begin{array}{l}
\\
\sqrt{\left(ux \cdot \left(1 - maxCos\right)\right) \cdot \left(2 + ux \cdot \left(maxCos + -1\right)\right)} \cdot \left(uy \cdot \left(2 \cdot \pi\right)\right)
\end{array}
Initial program 57.1%
associate-*l*57.1%
sub-neg57.1%
+-commutative57.1%
distribute-rgt-neg-in57.1%
fma-def57.1%
+-commutative57.1%
associate-+r-57.2%
fma-def57.2%
neg-sub057.2%
+-commutative57.2%
associate-+r-57.0%
associate--r-57.0%
neg-sub057.0%
+-commutative57.0%
sub-neg57.0%
fma-def57.0%
Simplified57.0%
Taylor expanded in ux around 0 98.2%
+-commutative98.2%
fma-def98.3%
+-commutative98.3%
mul-1-neg98.3%
sub-neg98.3%
metadata-eval98.3%
distribute-neg-in98.3%
metadata-eval98.3%
+-commutative98.3%
mul-1-neg98.3%
associate--l+98.3%
mul-1-neg98.3%
sub-neg98.3%
sub-neg98.3%
metadata-eval98.3%
*-commutative98.3%
unpow298.3%
Simplified98.3%
pow198.3%
count-298.3%
*-commutative98.3%
Applied egg-rr98.3%
unpow198.3%
associate-*r*98.3%
Simplified98.3%
Taylor expanded in uy around 0 82.9%
associate-*r*82.9%
*-commutative82.9%
*-commutative82.9%
Simplified82.9%
Final simplification82.9%
(FPCore (ux uy maxCos) :precision binary32 (if (<= ux 0.00016999999934341758) (* 2.0 (* (* uy PI) (sqrt (* ux (- 2.0 (* maxCos 2.0)))))) (* 2.0 (* uy (* PI (sqrt (+ 1.0 (* (+ ux -1.0) (- 1.0 ux)))))))))
float code(float ux, float uy, float maxCos) {
float tmp;
if (ux <= 0.00016999999934341758f) {
tmp = 2.0f * ((uy * ((float) M_PI)) * sqrtf((ux * (2.0f - (maxCos * 2.0f)))));
} else {
tmp = 2.0f * (uy * (((float) M_PI) * sqrtf((1.0f + ((ux + -1.0f) * (1.0f - ux))))));
}
return tmp;
}
function code(ux, uy, maxCos) tmp = Float32(0.0) if (ux <= Float32(0.00016999999934341758)) tmp = Float32(Float32(2.0) * Float32(Float32(uy * Float32(pi)) * sqrt(Float32(ux * Float32(Float32(2.0) - Float32(maxCos * Float32(2.0))))))); else tmp = Float32(Float32(2.0) * Float32(uy * Float32(Float32(pi) * sqrt(Float32(Float32(1.0) + Float32(Float32(ux + Float32(-1.0)) * Float32(Float32(1.0) - ux))))))); end return tmp end
function tmp_2 = code(ux, uy, maxCos) tmp = single(0.0); if (ux <= single(0.00016999999934341758)) tmp = single(2.0) * ((uy * single(pi)) * sqrt((ux * (single(2.0) - (maxCos * single(2.0)))))); else tmp = single(2.0) * (uy * (single(pi) * sqrt((single(1.0) + ((ux + single(-1.0)) * (single(1.0) - ux)))))); end tmp_2 = tmp; end
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;ux \leq 0.00016999999934341758:\\
\;\;\;\;2 \cdot \left(\left(uy \cdot \pi\right) \cdot \sqrt{ux \cdot \left(2 - maxCos \cdot 2\right)}\right)\\
\mathbf{else}:\\
\;\;\;\;2 \cdot \left(uy \cdot \left(\pi \cdot \sqrt{1 + \left(ux + -1\right) \cdot \left(1 - ux\right)}\right)\right)\\
\end{array}
\end{array}
if ux < 1.69999999e-4Initial program 34.8%
associate-*l*34.8%
sub-neg34.8%
+-commutative34.8%
distribute-rgt-neg-in34.8%
fma-def34.8%
+-commutative34.8%
associate-+r-34.8%
fma-def34.8%
neg-sub034.8%
+-commutative34.8%
associate-+r-34.7%
associate--r-34.7%
neg-sub034.7%
+-commutative34.7%
sub-neg34.7%
fma-def34.7%
Simplified34.7%
Taylor expanded in ux around 0 92.3%
mul-1-neg92.3%
sub-neg92.3%
metadata-eval92.3%
Simplified92.3%
Taylor expanded in uy around 0 78.8%
if 1.69999999e-4 < ux Initial program 89.2%
associate-*l*89.2%
sub-neg89.2%
+-commutative89.2%
distribute-rgt-neg-in89.2%
fma-def89.2%
+-commutative89.2%
associate-+r-89.3%
fma-def89.3%
neg-sub089.3%
+-commutative89.3%
associate-+r-88.9%
associate--r-88.9%
neg-sub088.9%
+-commutative88.9%
sub-neg88.9%
fma-def88.9%
Simplified88.9%
Taylor expanded in uy around 0 76.7%
Taylor expanded in maxCos around 0 73.1%
associate-*l*73.2%
sub-neg73.2%
metadata-eval73.2%
Simplified73.2%
Final simplification76.5%
(FPCore (ux uy maxCos) :precision binary32 (if (<= ux 0.00016999999934341758) (* 2.0 (* (* uy PI) (sqrt (* ux (- (+ 1.0 (- 1.0 maxCos)) maxCos))))) (* 2.0 (* uy (* PI (sqrt (+ 1.0 (* (+ ux -1.0) (- 1.0 ux)))))))))
float code(float ux, float uy, float maxCos) {
float tmp;
if (ux <= 0.00016999999934341758f) {
tmp = 2.0f * ((uy * ((float) M_PI)) * sqrtf((ux * ((1.0f + (1.0f - maxCos)) - maxCos))));
} else {
tmp = 2.0f * (uy * (((float) M_PI) * sqrtf((1.0f + ((ux + -1.0f) * (1.0f - ux))))));
}
return tmp;
}
function code(ux, uy, maxCos) tmp = Float32(0.0) if (ux <= Float32(0.00016999999934341758)) tmp = Float32(Float32(2.0) * Float32(Float32(uy * Float32(pi)) * sqrt(Float32(ux * Float32(Float32(Float32(1.0) + Float32(Float32(1.0) - maxCos)) - maxCos))))); else tmp = Float32(Float32(2.0) * Float32(uy * Float32(Float32(pi) * sqrt(Float32(Float32(1.0) + Float32(Float32(ux + Float32(-1.0)) * Float32(Float32(1.0) - ux))))))); end return tmp end
function tmp_2 = code(ux, uy, maxCos) tmp = single(0.0); if (ux <= single(0.00016999999934341758)) tmp = single(2.0) * ((uy * single(pi)) * sqrt((ux * ((single(1.0) + (single(1.0) - maxCos)) - maxCos)))); else tmp = single(2.0) * (uy * (single(pi) * sqrt((single(1.0) + ((ux + single(-1.0)) * (single(1.0) - ux)))))); end tmp_2 = tmp; end
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;ux \leq 0.00016999999934341758:\\
\;\;\;\;2 \cdot \left(\left(uy \cdot \pi\right) \cdot \sqrt{ux \cdot \left(\left(1 + \left(1 - maxCos\right)\right) - maxCos\right)}\right)\\
\mathbf{else}:\\
\;\;\;\;2 \cdot \left(uy \cdot \left(\pi \cdot \sqrt{1 + \left(ux + -1\right) \cdot \left(1 - ux\right)}\right)\right)\\
\end{array}
\end{array}
if ux < 1.69999999e-4Initial program 34.8%
associate-*l*34.8%
sub-neg34.8%
+-commutative34.8%
distribute-rgt-neg-in34.8%
fma-def34.8%
+-commutative34.8%
associate-+r-34.8%
fma-def34.8%
neg-sub034.8%
+-commutative34.8%
associate-+r-34.7%
associate--r-34.7%
neg-sub034.7%
+-commutative34.7%
sub-neg34.7%
fma-def34.7%
Simplified34.7%
Taylor expanded in uy around 0 32.1%
Taylor expanded in ux around 0 78.8%
if 1.69999999e-4 < ux Initial program 89.2%
associate-*l*89.2%
sub-neg89.2%
+-commutative89.2%
distribute-rgt-neg-in89.2%
fma-def89.2%
+-commutative89.2%
associate-+r-89.3%
fma-def89.3%
neg-sub089.3%
+-commutative89.3%
associate-+r-88.9%
associate--r-88.9%
neg-sub088.9%
+-commutative88.9%
sub-neg88.9%
fma-def88.9%
Simplified88.9%
Taylor expanded in uy around 0 76.7%
Taylor expanded in maxCos around 0 73.1%
associate-*l*73.2%
sub-neg73.2%
metadata-eval73.2%
Simplified73.2%
Final simplification76.5%
(FPCore (ux uy maxCos) :precision binary32 (* 2.0 (* (* uy PI) (sqrt (* ux (- 2.0 (* maxCos 2.0)))))))
float code(float ux, float uy, float maxCos) {
return 2.0f * ((uy * ((float) M_PI)) * sqrtf((ux * (2.0f - (maxCos * 2.0f)))));
}
function code(ux, uy, maxCos) return Float32(Float32(2.0) * Float32(Float32(uy * Float32(pi)) * sqrt(Float32(ux * Float32(Float32(2.0) - Float32(maxCos * Float32(2.0))))))) end
function tmp = code(ux, uy, maxCos) tmp = single(2.0) * ((uy * single(pi)) * sqrt((ux * (single(2.0) - (maxCos * single(2.0)))))); end
\begin{array}{l}
\\
2 \cdot \left(\left(uy \cdot \pi\right) \cdot \sqrt{ux \cdot \left(2 - maxCos \cdot 2\right)}\right)
\end{array}
Initial program 57.1%
associate-*l*57.1%
sub-neg57.1%
+-commutative57.1%
distribute-rgt-neg-in57.1%
fma-def57.1%
+-commutative57.1%
associate-+r-57.2%
fma-def57.2%
neg-sub057.2%
+-commutative57.2%
associate-+r-57.0%
associate--r-57.0%
neg-sub057.0%
+-commutative57.0%
sub-neg57.0%
fma-def57.0%
Simplified57.0%
Taylor expanded in ux around 0 75.9%
mul-1-neg75.9%
sub-neg75.9%
metadata-eval75.9%
Simplified75.9%
Taylor expanded in uy around 0 66.3%
Final simplification66.3%
(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 57.1%
associate-*l*57.1%
sub-neg57.1%
+-commutative57.1%
distribute-rgt-neg-in57.1%
fma-def57.1%
+-commutative57.1%
associate-+r-57.2%
fma-def57.2%
neg-sub057.2%
+-commutative57.2%
associate-+r-57.0%
associate--r-57.0%
neg-sub057.0%
+-commutative57.0%
sub-neg57.0%
fma-def57.0%
Simplified57.0%
Taylor expanded in uy around 0 50.4%
Taylor expanded in ux around 0 7.1%
Final simplification7.1%
herbie shell --seed 2023207
(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)))))))