
(FPCore (w h d dX.u dX.v dX.w dY.u dY.v dY.w)
:precision binary32
(let* ((t_0 (* (floor w) dY.u))
(t_1 (* (floor h) dY.v))
(t_2 (* (floor h) dX.v))
(t_3 (* (floor d) dY.w))
(t_4 (* (floor d) dX.w))
(t_5 (* (floor w) dX.u)))
(log2
(sqrt
(fmax
(+ (+ (* t_5 t_5) (* t_2 t_2)) (* t_4 t_4))
(+ (+ (* t_0 t_0) (* t_1 t_1)) (* t_3 t_3)))))))
float code(float w, float h, float d, float dX_46_u, float dX_46_v, float dX_46_w, float dY_46_u, float dY_46_v, float dY_46_w) {
float t_0 = floorf(w) * dY_46_u;
float t_1 = floorf(h) * dY_46_v;
float t_2 = floorf(h) * dX_46_v;
float t_3 = floorf(d) * dY_46_w;
float t_4 = floorf(d) * dX_46_w;
float t_5 = floorf(w) * dX_46_u;
return log2f(sqrtf(fmaxf((((t_5 * t_5) + (t_2 * t_2)) + (t_4 * t_4)), (((t_0 * t_0) + (t_1 * t_1)) + (t_3 * t_3)))));
}
function code(w, h, d, dX_46_u, dX_46_v, dX_46_w, dY_46_u, dY_46_v, dY_46_w) t_0 = Float32(floor(w) * dY_46_u) t_1 = Float32(floor(h) * dY_46_v) t_2 = Float32(floor(h) * dX_46_v) t_3 = Float32(floor(d) * dY_46_w) t_4 = Float32(floor(d) * dX_46_w) t_5 = Float32(floor(w) * dX_46_u) return log2(sqrt(((Float32(Float32(Float32(t_5 * t_5) + Float32(t_2 * t_2)) + Float32(t_4 * t_4)) != Float32(Float32(Float32(t_5 * t_5) + Float32(t_2 * t_2)) + Float32(t_4 * t_4))) ? Float32(Float32(Float32(t_0 * t_0) + Float32(t_1 * t_1)) + Float32(t_3 * t_3)) : ((Float32(Float32(Float32(t_0 * t_0) + Float32(t_1 * t_1)) + Float32(t_3 * t_3)) != Float32(Float32(Float32(t_0 * t_0) + Float32(t_1 * t_1)) + Float32(t_3 * t_3))) ? Float32(Float32(Float32(t_5 * t_5) + Float32(t_2 * t_2)) + Float32(t_4 * t_4)) : max(Float32(Float32(Float32(t_5 * t_5) + Float32(t_2 * t_2)) + Float32(t_4 * t_4)), Float32(Float32(Float32(t_0 * t_0) + Float32(t_1 * t_1)) + Float32(t_3 * t_3))))))) end
function tmp = code(w, h, d, dX_46_u, dX_46_v, dX_46_w, dY_46_u, dY_46_v, dY_46_w) t_0 = floor(w) * dY_46_u; t_1 = floor(h) * dY_46_v; t_2 = floor(h) * dX_46_v; t_3 = floor(d) * dY_46_w; t_4 = floor(d) * dX_46_w; t_5 = floor(w) * dX_46_u; tmp = log2(sqrt(max((((t_5 * t_5) + (t_2 * t_2)) + (t_4 * t_4)), (((t_0 * t_0) + (t_1 * t_1)) + (t_3 * t_3))))); end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left\lfloorw\right\rfloor \cdot dY.u\\
t_1 := \left\lfloorh\right\rfloor \cdot dY.v\\
t_2 := \left\lfloorh\right\rfloor \cdot dX.v\\
t_3 := \left\lfloord\right\rfloor \cdot dY.w\\
t_4 := \left\lfloord\right\rfloor \cdot dX.w\\
t_5 := \left\lfloorw\right\rfloor \cdot dX.u\\
\log_{2} \left(\sqrt{\mathsf{max}\left(\left(t\_5 \cdot t\_5 + t\_2 \cdot t\_2\right) + t\_4 \cdot t\_4, \left(t\_0 \cdot t\_0 + t\_1 \cdot t\_1\right) + t\_3 \cdot t\_3\right)}\right)
\end{array}
\end{array}
Sampling outcomes in binary32 precision:
Herbie found 8 alternatives:
| Alternative | Accuracy | Speedup |
|---|
(FPCore (w h d dX.u dX.v dX.w dY.u dY.v dY.w)
:precision binary32
(let* ((t_0 (* (floor w) dY.u))
(t_1 (* (floor h) dY.v))
(t_2 (* (floor h) dX.v))
(t_3 (* (floor d) dY.w))
(t_4 (* (floor d) dX.w))
(t_5 (* (floor w) dX.u)))
(log2
(sqrt
(fmax
(+ (+ (* t_5 t_5) (* t_2 t_2)) (* t_4 t_4))
(+ (+ (* t_0 t_0) (* t_1 t_1)) (* t_3 t_3)))))))
float code(float w, float h, float d, float dX_46_u, float dX_46_v, float dX_46_w, float dY_46_u, float dY_46_v, float dY_46_w) {
float t_0 = floorf(w) * dY_46_u;
float t_1 = floorf(h) * dY_46_v;
float t_2 = floorf(h) * dX_46_v;
float t_3 = floorf(d) * dY_46_w;
float t_4 = floorf(d) * dX_46_w;
float t_5 = floorf(w) * dX_46_u;
return log2f(sqrtf(fmaxf((((t_5 * t_5) + (t_2 * t_2)) + (t_4 * t_4)), (((t_0 * t_0) + (t_1 * t_1)) + (t_3 * t_3)))));
}
function code(w, h, d, dX_46_u, dX_46_v, dX_46_w, dY_46_u, dY_46_v, dY_46_w) t_0 = Float32(floor(w) * dY_46_u) t_1 = Float32(floor(h) * dY_46_v) t_2 = Float32(floor(h) * dX_46_v) t_3 = Float32(floor(d) * dY_46_w) t_4 = Float32(floor(d) * dX_46_w) t_5 = Float32(floor(w) * dX_46_u) return log2(sqrt(((Float32(Float32(Float32(t_5 * t_5) + Float32(t_2 * t_2)) + Float32(t_4 * t_4)) != Float32(Float32(Float32(t_5 * t_5) + Float32(t_2 * t_2)) + Float32(t_4 * t_4))) ? Float32(Float32(Float32(t_0 * t_0) + Float32(t_1 * t_1)) + Float32(t_3 * t_3)) : ((Float32(Float32(Float32(t_0 * t_0) + Float32(t_1 * t_1)) + Float32(t_3 * t_3)) != Float32(Float32(Float32(t_0 * t_0) + Float32(t_1 * t_1)) + Float32(t_3 * t_3))) ? Float32(Float32(Float32(t_5 * t_5) + Float32(t_2 * t_2)) + Float32(t_4 * t_4)) : max(Float32(Float32(Float32(t_5 * t_5) + Float32(t_2 * t_2)) + Float32(t_4 * t_4)), Float32(Float32(Float32(t_0 * t_0) + Float32(t_1 * t_1)) + Float32(t_3 * t_3))))))) end
function tmp = code(w, h, d, dX_46_u, dX_46_v, dX_46_w, dY_46_u, dY_46_v, dY_46_w) t_0 = floor(w) * dY_46_u; t_1 = floor(h) * dY_46_v; t_2 = floor(h) * dX_46_v; t_3 = floor(d) * dY_46_w; t_4 = floor(d) * dX_46_w; t_5 = floor(w) * dX_46_u; tmp = log2(sqrt(max((((t_5 * t_5) + (t_2 * t_2)) + (t_4 * t_4)), (((t_0 * t_0) + (t_1 * t_1)) + (t_3 * t_3))))); end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left\lfloorw\right\rfloor \cdot dY.u\\
t_1 := \left\lfloorh\right\rfloor \cdot dY.v\\
t_2 := \left\lfloorh\right\rfloor \cdot dX.v\\
t_3 := \left\lfloord\right\rfloor \cdot dY.w\\
t_4 := \left\lfloord\right\rfloor \cdot dX.w\\
t_5 := \left\lfloorw\right\rfloor \cdot dX.u\\
\log_{2} \left(\sqrt{\mathsf{max}\left(\left(t\_5 \cdot t\_5 + t\_2 \cdot t\_2\right) + t\_4 \cdot t\_4, \left(t\_0 \cdot t\_0 + t\_1 \cdot t\_1\right) + t\_3 \cdot t\_3\right)}\right)
\end{array}
\end{array}
(FPCore (w h d dX.u dX.v dX.w dY.u dY.v dY.w)
:precision binary32
(log2
(sqrt
(fmax
(pow
(hypot (* dX.w (floor d)) (hypot (* dX.u (floor w)) (* dX.v (floor h))))
2.0)
(pow
(hypot (* (floor d) dY.w) (hypot (* (floor w) dY.u) (* (floor h) dY.v)))
2.0)))))
float code(float w, float h, float d, float dX_46_u, float dX_46_v, float dX_46_w, float dY_46_u, float dY_46_v, float dY_46_w) {
return log2f(sqrtf(fmaxf(powf(hypotf((dX_46_w * floorf(d)), hypotf((dX_46_u * floorf(w)), (dX_46_v * floorf(h)))), 2.0f), powf(hypotf((floorf(d) * dY_46_w), hypotf((floorf(w) * dY_46_u), (floorf(h) * dY_46_v))), 2.0f))));
}
function code(w, h, d, dX_46_u, dX_46_v, dX_46_w, dY_46_u, dY_46_v, dY_46_w) return log2(sqrt((((hypot(Float32(dX_46_w * floor(d)), hypot(Float32(dX_46_u * floor(w)), Float32(dX_46_v * floor(h)))) ^ Float32(2.0)) != (hypot(Float32(dX_46_w * floor(d)), hypot(Float32(dX_46_u * floor(w)), Float32(dX_46_v * floor(h)))) ^ Float32(2.0))) ? (hypot(Float32(floor(d) * dY_46_w), hypot(Float32(floor(w) * dY_46_u), Float32(floor(h) * dY_46_v))) ^ Float32(2.0)) : (((hypot(Float32(floor(d) * dY_46_w), hypot(Float32(floor(w) * dY_46_u), Float32(floor(h) * dY_46_v))) ^ Float32(2.0)) != (hypot(Float32(floor(d) * dY_46_w), hypot(Float32(floor(w) * dY_46_u), Float32(floor(h) * dY_46_v))) ^ Float32(2.0))) ? (hypot(Float32(dX_46_w * floor(d)), hypot(Float32(dX_46_u * floor(w)), Float32(dX_46_v * floor(h)))) ^ Float32(2.0)) : max((hypot(Float32(dX_46_w * floor(d)), hypot(Float32(dX_46_u * floor(w)), Float32(dX_46_v * floor(h)))) ^ Float32(2.0)), (hypot(Float32(floor(d) * dY_46_w), hypot(Float32(floor(w) * dY_46_u), Float32(floor(h) * dY_46_v))) ^ Float32(2.0))))))) end
function tmp = code(w, h, d, dX_46_u, dX_46_v, dX_46_w, dY_46_u, dY_46_v, dY_46_w) tmp = log2(sqrt(max((hypot((dX_46_w * floor(d)), hypot((dX_46_u * floor(w)), (dX_46_v * floor(h)))) ^ single(2.0)), (hypot((floor(d) * dY_46_w), hypot((floor(w) * dY_46_u), (floor(h) * dY_46_v))) ^ single(2.0))))); end
\begin{array}{l}
\\
\log_{2} \left(\sqrt{\mathsf{max}\left({\left(\mathsf{hypot}\left(dX.w \cdot \left\lfloord\right\rfloor, \mathsf{hypot}\left(dX.u \cdot \left\lfloorw\right\rfloor, dX.v \cdot \left\lfloorh\right\rfloor\right)\right)\right)}^{2}, {\left(\mathsf{hypot}\left(\left\lfloord\right\rfloor \cdot dY.w, \mathsf{hypot}\left(\left\lfloorw\right\rfloor \cdot dY.u, \left\lfloorh\right\rfloor \cdot dY.v\right)\right)\right)}^{2}\right)}\right)
\end{array}
Initial program 68.2%
Taylor expanded in w around 0 68.2%
Simplified68.2%
(FPCore (w h d dX.u dX.v dX.w dY.u dY.v dY.w)
:precision binary32
(let* ((t_0 (* dX.u (floor w)))
(t_1
(pow
(hypot
(* (floor d) dY.w)
(hypot (* (floor w) dY.u) (* (floor h) dY.v)))
2.0)))
(if (<= dX.w 20000.0)
(log2 (sqrt (fmax (pow (hypot (* dX.v (floor h)) t_0) 2.0) t_1)))
(log2 (sqrt (fmax (pow (hypot (* dX.w (floor d)) t_0) 2.0) t_1))))))
float code(float w, float h, float d, float dX_46_u, float dX_46_v, float dX_46_w, float dY_46_u, float dY_46_v, float dY_46_w) {
float t_0 = dX_46_u * floorf(w);
float t_1 = powf(hypotf((floorf(d) * dY_46_w), hypotf((floorf(w) * dY_46_u), (floorf(h) * dY_46_v))), 2.0f);
float tmp;
if (dX_46_w <= 20000.0f) {
tmp = log2f(sqrtf(fmaxf(powf(hypotf((dX_46_v * floorf(h)), t_0), 2.0f), t_1)));
} else {
tmp = log2f(sqrtf(fmaxf(powf(hypotf((dX_46_w * floorf(d)), t_0), 2.0f), t_1)));
}
return tmp;
}
function code(w, h, d, dX_46_u, dX_46_v, dX_46_w, dY_46_u, dY_46_v, dY_46_w) t_0 = Float32(dX_46_u * floor(w)) t_1 = hypot(Float32(floor(d) * dY_46_w), hypot(Float32(floor(w) * dY_46_u), Float32(floor(h) * dY_46_v))) ^ Float32(2.0) tmp = Float32(0.0) if (dX_46_w <= Float32(20000.0)) tmp = log2(sqrt((((hypot(Float32(dX_46_v * floor(h)), t_0) ^ Float32(2.0)) != (hypot(Float32(dX_46_v * floor(h)), t_0) ^ Float32(2.0))) ? t_1 : ((t_1 != t_1) ? (hypot(Float32(dX_46_v * floor(h)), t_0) ^ Float32(2.0)) : max((hypot(Float32(dX_46_v * floor(h)), t_0) ^ Float32(2.0)), t_1))))); else tmp = log2(sqrt((((hypot(Float32(dX_46_w * floor(d)), t_0) ^ Float32(2.0)) != (hypot(Float32(dX_46_w * floor(d)), t_0) ^ Float32(2.0))) ? t_1 : ((t_1 != t_1) ? (hypot(Float32(dX_46_w * floor(d)), t_0) ^ Float32(2.0)) : max((hypot(Float32(dX_46_w * floor(d)), t_0) ^ Float32(2.0)), t_1))))); end return tmp end
function tmp_2 = code(w, h, d, dX_46_u, dX_46_v, dX_46_w, dY_46_u, dY_46_v, dY_46_w) t_0 = dX_46_u * floor(w); t_1 = hypot((floor(d) * dY_46_w), hypot((floor(w) * dY_46_u), (floor(h) * dY_46_v))) ^ single(2.0); tmp = single(0.0); if (dX_46_w <= single(20000.0)) tmp = log2(sqrt(max((hypot((dX_46_v * floor(h)), t_0) ^ single(2.0)), t_1))); else tmp = log2(sqrt(max((hypot((dX_46_w * floor(d)), t_0) ^ single(2.0)), t_1))); end tmp_2 = tmp; end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := dX.u \cdot \left\lfloorw\right\rfloor\\
t_1 := {\left(\mathsf{hypot}\left(\left\lfloord\right\rfloor \cdot dY.w, \mathsf{hypot}\left(\left\lfloorw\right\rfloor \cdot dY.u, \left\lfloorh\right\rfloor \cdot dY.v\right)\right)\right)}^{2}\\
\mathbf{if}\;dX.w \leq 20000:\\
\;\;\;\;\log_{2} \left(\sqrt{\mathsf{max}\left({\left(\mathsf{hypot}\left(dX.v \cdot \left\lfloorh\right\rfloor, t\_0\right)\right)}^{2}, t\_1\right)}\right)\\
\mathbf{else}:\\
\;\;\;\;\log_{2} \left(\sqrt{\mathsf{max}\left({\left(\mathsf{hypot}\left(dX.w \cdot \left\lfloord\right\rfloor, t\_0\right)\right)}^{2}, t\_1\right)}\right)\\
\end{array}
\end{array}
if dX.w < 2e4Initial program 70.6%
Taylor expanded in w around 0 70.6%
Simplified70.6%
Taylor expanded in dX.w around 0 65.8%
unpow265.8%
unpow265.8%
swap-sqr65.8%
unpow265.8%
unpow265.8%
swap-sqr65.8%
rem-square-sqrt65.8%
hypot-undefine65.8%
hypot-undefine65.8%
unpow265.8%
Simplified65.8%
if 2e4 < dX.w Initial program 57.3%
Taylor expanded in w around 0 57.3%
Simplified57.3%
Taylor expanded in dX.u around inf 58.2%
(FPCore (w h d dX.u dX.v dX.w dY.u dY.v dY.w)
:precision binary32
(let* ((t_0 (* dX.v (floor h))) (t_1 (* dX.u (floor w))))
(if (<= dX.w 40.0)
(log2
(sqrt
(fmax
(pow (hypot t_0 t_1) 2.0)
(pow
(hypot
(* (floor d) dY.w)
(hypot (* (floor w) dY.u) (* (floor h) dY.v)))
2.0))))
(log2
(sqrt
(fmax
(pow (hypot (* dX.w (floor d)) (hypot t_1 t_0)) 2.0)
(* (pow (floor h) 2.0) (pow dY.v 2.0))))))))
float code(float w, float h, float d, float dX_46_u, float dX_46_v, float dX_46_w, float dY_46_u, float dY_46_v, float dY_46_w) {
float t_0 = dX_46_v * floorf(h);
float t_1 = dX_46_u * floorf(w);
float tmp;
if (dX_46_w <= 40.0f) {
tmp = log2f(sqrtf(fmaxf(powf(hypotf(t_0, t_1), 2.0f), powf(hypotf((floorf(d) * dY_46_w), hypotf((floorf(w) * dY_46_u), (floorf(h) * dY_46_v))), 2.0f))));
} else {
tmp = log2f(sqrtf(fmaxf(powf(hypotf((dX_46_w * floorf(d)), hypotf(t_1, t_0)), 2.0f), (powf(floorf(h), 2.0f) * powf(dY_46_v, 2.0f)))));
}
return tmp;
}
function code(w, h, d, dX_46_u, dX_46_v, dX_46_w, dY_46_u, dY_46_v, dY_46_w) t_0 = Float32(dX_46_v * floor(h)) t_1 = Float32(dX_46_u * floor(w)) tmp = Float32(0.0) if (dX_46_w <= Float32(40.0)) tmp = log2(sqrt((((hypot(t_0, t_1) ^ Float32(2.0)) != (hypot(t_0, t_1) ^ Float32(2.0))) ? (hypot(Float32(floor(d) * dY_46_w), hypot(Float32(floor(w) * dY_46_u), Float32(floor(h) * dY_46_v))) ^ Float32(2.0)) : (((hypot(Float32(floor(d) * dY_46_w), hypot(Float32(floor(w) * dY_46_u), Float32(floor(h) * dY_46_v))) ^ Float32(2.0)) != (hypot(Float32(floor(d) * dY_46_w), hypot(Float32(floor(w) * dY_46_u), Float32(floor(h) * dY_46_v))) ^ Float32(2.0))) ? (hypot(t_0, t_1) ^ Float32(2.0)) : max((hypot(t_0, t_1) ^ Float32(2.0)), (hypot(Float32(floor(d) * dY_46_w), hypot(Float32(floor(w) * dY_46_u), Float32(floor(h) * dY_46_v))) ^ Float32(2.0))))))); else tmp = log2(sqrt((((hypot(Float32(dX_46_w * floor(d)), hypot(t_1, t_0)) ^ Float32(2.0)) != (hypot(Float32(dX_46_w * floor(d)), hypot(t_1, t_0)) ^ Float32(2.0))) ? Float32((floor(h) ^ Float32(2.0)) * (dY_46_v ^ Float32(2.0))) : ((Float32((floor(h) ^ Float32(2.0)) * (dY_46_v ^ Float32(2.0))) != Float32((floor(h) ^ Float32(2.0)) * (dY_46_v ^ Float32(2.0)))) ? (hypot(Float32(dX_46_w * floor(d)), hypot(t_1, t_0)) ^ Float32(2.0)) : max((hypot(Float32(dX_46_w * floor(d)), hypot(t_1, t_0)) ^ Float32(2.0)), Float32((floor(h) ^ Float32(2.0)) * (dY_46_v ^ Float32(2.0)))))))); end return tmp end
function tmp_2 = code(w, h, d, dX_46_u, dX_46_v, dX_46_w, dY_46_u, dY_46_v, dY_46_w) t_0 = dX_46_v * floor(h); t_1 = dX_46_u * floor(w); tmp = single(0.0); if (dX_46_w <= single(40.0)) tmp = log2(sqrt(max((hypot(t_0, t_1) ^ single(2.0)), (hypot((floor(d) * dY_46_w), hypot((floor(w) * dY_46_u), (floor(h) * dY_46_v))) ^ single(2.0))))); else tmp = log2(sqrt(max((hypot((dX_46_w * floor(d)), hypot(t_1, t_0)) ^ single(2.0)), ((floor(h) ^ single(2.0)) * (dY_46_v ^ single(2.0)))))); end tmp_2 = tmp; end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := dX.v \cdot \left\lfloorh\right\rfloor\\
t_1 := dX.u \cdot \left\lfloorw\right\rfloor\\
\mathbf{if}\;dX.w \leq 40:\\
\;\;\;\;\log_{2} \left(\sqrt{\mathsf{max}\left({\left(\mathsf{hypot}\left(t\_0, t\_1\right)\right)}^{2}, {\left(\mathsf{hypot}\left(\left\lfloord\right\rfloor \cdot dY.w, \mathsf{hypot}\left(\left\lfloorw\right\rfloor \cdot dY.u, \left\lfloorh\right\rfloor \cdot dY.v\right)\right)\right)}^{2}\right)}\right)\\
\mathbf{else}:\\
\;\;\;\;\log_{2} \left(\sqrt{\mathsf{max}\left({\left(\mathsf{hypot}\left(dX.w \cdot \left\lfloord\right\rfloor, \mathsf{hypot}\left(t\_1, t\_0\right)\right)\right)}^{2}, {\left(\left\lfloorh\right\rfloor\right)}^{2} \cdot {dY.v}^{2}\right)}\right)\\
\end{array}
\end{array}
if dX.w < 40Initial program 70.1%
Taylor expanded in w around 0 70.1%
Simplified70.1%
Taylor expanded in dX.w around 0 65.3%
unpow265.3%
unpow265.3%
swap-sqr65.3%
unpow265.3%
unpow265.3%
swap-sqr65.3%
rem-square-sqrt65.3%
hypot-undefine65.3%
hypot-undefine65.3%
unpow265.3%
Simplified65.3%
if 40 < dX.w Initial program 61.6%
Taylor expanded in w around 0 61.6%
Simplified61.6%
Taylor expanded in dY.v around inf 61.7%
*-commutative61.7%
Simplified61.7%
(FPCore (w h d dX.u dX.v dX.w dY.u dY.v dY.w)
:precision binary32
(let* ((t_0 (* dX.v (floor h))))
(if (<= dX.w 40.0)
(log2
(sqrt
(fmax
(pow t_0 2.0)
(pow
(hypot
(* (floor d) dY.w)
(hypot (* (floor w) dY.u) (* (floor h) dY.v)))
2.0))))
(log2
(sqrt
(fmax
(pow (hypot (* dX.w (floor d)) (hypot (* dX.u (floor w)) t_0)) 2.0)
(* (pow (floor h) 2.0) (pow dY.v 2.0))))))))
float code(float w, float h, float d, float dX_46_u, float dX_46_v, float dX_46_w, float dY_46_u, float dY_46_v, float dY_46_w) {
float t_0 = dX_46_v * floorf(h);
float tmp;
if (dX_46_w <= 40.0f) {
tmp = log2f(sqrtf(fmaxf(powf(t_0, 2.0f), powf(hypotf((floorf(d) * dY_46_w), hypotf((floorf(w) * dY_46_u), (floorf(h) * dY_46_v))), 2.0f))));
} else {
tmp = log2f(sqrtf(fmaxf(powf(hypotf((dX_46_w * floorf(d)), hypotf((dX_46_u * floorf(w)), t_0)), 2.0f), (powf(floorf(h), 2.0f) * powf(dY_46_v, 2.0f)))));
}
return tmp;
}
function code(w, h, d, dX_46_u, dX_46_v, dX_46_w, dY_46_u, dY_46_v, dY_46_w) t_0 = Float32(dX_46_v * floor(h)) tmp = Float32(0.0) if (dX_46_w <= Float32(40.0)) tmp = log2(sqrt((((t_0 ^ Float32(2.0)) != (t_0 ^ Float32(2.0))) ? (hypot(Float32(floor(d) * dY_46_w), hypot(Float32(floor(w) * dY_46_u), Float32(floor(h) * dY_46_v))) ^ Float32(2.0)) : (((hypot(Float32(floor(d) * dY_46_w), hypot(Float32(floor(w) * dY_46_u), Float32(floor(h) * dY_46_v))) ^ Float32(2.0)) != (hypot(Float32(floor(d) * dY_46_w), hypot(Float32(floor(w) * dY_46_u), Float32(floor(h) * dY_46_v))) ^ Float32(2.0))) ? (t_0 ^ Float32(2.0)) : max((t_0 ^ Float32(2.0)), (hypot(Float32(floor(d) * dY_46_w), hypot(Float32(floor(w) * dY_46_u), Float32(floor(h) * dY_46_v))) ^ Float32(2.0))))))); else tmp = log2(sqrt((((hypot(Float32(dX_46_w * floor(d)), hypot(Float32(dX_46_u * floor(w)), t_0)) ^ Float32(2.0)) != (hypot(Float32(dX_46_w * floor(d)), hypot(Float32(dX_46_u * floor(w)), t_0)) ^ Float32(2.0))) ? Float32((floor(h) ^ Float32(2.0)) * (dY_46_v ^ Float32(2.0))) : ((Float32((floor(h) ^ Float32(2.0)) * (dY_46_v ^ Float32(2.0))) != Float32((floor(h) ^ Float32(2.0)) * (dY_46_v ^ Float32(2.0)))) ? (hypot(Float32(dX_46_w * floor(d)), hypot(Float32(dX_46_u * floor(w)), t_0)) ^ Float32(2.0)) : max((hypot(Float32(dX_46_w * floor(d)), hypot(Float32(dX_46_u * floor(w)), t_0)) ^ Float32(2.0)), Float32((floor(h) ^ Float32(2.0)) * (dY_46_v ^ Float32(2.0)))))))); end return tmp end
function tmp_2 = code(w, h, d, dX_46_u, dX_46_v, dX_46_w, dY_46_u, dY_46_v, dY_46_w) t_0 = dX_46_v * floor(h); tmp = single(0.0); if (dX_46_w <= single(40.0)) tmp = log2(sqrt(max((t_0 ^ single(2.0)), (hypot((floor(d) * dY_46_w), hypot((floor(w) * dY_46_u), (floor(h) * dY_46_v))) ^ single(2.0))))); else tmp = log2(sqrt(max((hypot((dX_46_w * floor(d)), hypot((dX_46_u * floor(w)), t_0)) ^ single(2.0)), ((floor(h) ^ single(2.0)) * (dY_46_v ^ single(2.0)))))); end tmp_2 = tmp; end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := dX.v \cdot \left\lfloorh\right\rfloor\\
\mathbf{if}\;dX.w \leq 40:\\
\;\;\;\;\log_{2} \left(\sqrt{\mathsf{max}\left({t\_0}^{2}, {\left(\mathsf{hypot}\left(\left\lfloord\right\rfloor \cdot dY.w, \mathsf{hypot}\left(\left\lfloorw\right\rfloor \cdot dY.u, \left\lfloorh\right\rfloor \cdot dY.v\right)\right)\right)}^{2}\right)}\right)\\
\mathbf{else}:\\
\;\;\;\;\log_{2} \left(\sqrt{\mathsf{max}\left({\left(\mathsf{hypot}\left(dX.w \cdot \left\lfloord\right\rfloor, \mathsf{hypot}\left(dX.u \cdot \left\lfloorw\right\rfloor, t\_0\right)\right)\right)}^{2}, {\left(\left\lfloorh\right\rfloor\right)}^{2} \cdot {dY.v}^{2}\right)}\right)\\
\end{array}
\end{array}
if dX.w < 40Initial program 70.1%
Taylor expanded in w around 0 70.1%
Simplified70.1%
Taylor expanded in dX.v around inf 59.4%
Taylor expanded in dX.v around 0 59.4%
Simplified59.4%
if 40 < dX.w Initial program 61.6%
Taylor expanded in w around 0 61.6%
Simplified61.6%
Taylor expanded in dY.v around inf 61.7%
*-commutative61.7%
Simplified61.7%
Final simplification59.9%
(FPCore (w h d dX.u dX.v dX.w dY.u dY.v dY.w)
:precision binary32
(let* ((t_0 (* dX.w (floor d))) (t_1 (* (floor w) dY.u)))
(if (<= dX.v 5000000.0)
(log2
(sqrt
(fmax
(pow t_0 2.0)
(pow (hypot (* (floor d) dY.w) (hypot t_1 (* (floor h) dY.v))) 2.0))))
(log2
(sqrt
(fmax
(pow (hypot t_0 (hypot (* dX.u (floor w)) (* dX.v (floor h)))) 2.0)
(pow t_1 2.0)))))))
float code(float w, float h, float d, float dX_46_u, float dX_46_v, float dX_46_w, float dY_46_u, float dY_46_v, float dY_46_w) {
float t_0 = dX_46_w * floorf(d);
float t_1 = floorf(w) * dY_46_u;
float tmp;
if (dX_46_v <= 5000000.0f) {
tmp = log2f(sqrtf(fmaxf(powf(t_0, 2.0f), powf(hypotf((floorf(d) * dY_46_w), hypotf(t_1, (floorf(h) * dY_46_v))), 2.0f))));
} else {
tmp = log2f(sqrtf(fmaxf(powf(hypotf(t_0, hypotf((dX_46_u * floorf(w)), (dX_46_v * floorf(h)))), 2.0f), powf(t_1, 2.0f))));
}
return tmp;
}
function code(w, h, d, dX_46_u, dX_46_v, dX_46_w, dY_46_u, dY_46_v, dY_46_w) t_0 = Float32(dX_46_w * floor(d)) t_1 = Float32(floor(w) * dY_46_u) tmp = Float32(0.0) if (dX_46_v <= Float32(5000000.0)) tmp = log2(sqrt((((t_0 ^ Float32(2.0)) != (t_0 ^ Float32(2.0))) ? (hypot(Float32(floor(d) * dY_46_w), hypot(t_1, Float32(floor(h) * dY_46_v))) ^ Float32(2.0)) : (((hypot(Float32(floor(d) * dY_46_w), hypot(t_1, Float32(floor(h) * dY_46_v))) ^ Float32(2.0)) != (hypot(Float32(floor(d) * dY_46_w), hypot(t_1, Float32(floor(h) * dY_46_v))) ^ Float32(2.0))) ? (t_0 ^ Float32(2.0)) : max((t_0 ^ Float32(2.0)), (hypot(Float32(floor(d) * dY_46_w), hypot(t_1, Float32(floor(h) * dY_46_v))) ^ Float32(2.0))))))); else tmp = log2(sqrt((((hypot(t_0, hypot(Float32(dX_46_u * floor(w)), Float32(dX_46_v * floor(h)))) ^ Float32(2.0)) != (hypot(t_0, hypot(Float32(dX_46_u * floor(w)), Float32(dX_46_v * floor(h)))) ^ Float32(2.0))) ? (t_1 ^ Float32(2.0)) : (((t_1 ^ Float32(2.0)) != (t_1 ^ Float32(2.0))) ? (hypot(t_0, hypot(Float32(dX_46_u * floor(w)), Float32(dX_46_v * floor(h)))) ^ Float32(2.0)) : max((hypot(t_0, hypot(Float32(dX_46_u * floor(w)), Float32(dX_46_v * floor(h)))) ^ Float32(2.0)), (t_1 ^ Float32(2.0))))))); end return tmp end
function tmp_2 = code(w, h, d, dX_46_u, dX_46_v, dX_46_w, dY_46_u, dY_46_v, dY_46_w) t_0 = dX_46_w * floor(d); t_1 = floor(w) * dY_46_u; tmp = single(0.0); if (dX_46_v <= single(5000000.0)) tmp = log2(sqrt(max((t_0 ^ single(2.0)), (hypot((floor(d) * dY_46_w), hypot(t_1, (floor(h) * dY_46_v))) ^ single(2.0))))); else tmp = log2(sqrt(max((hypot(t_0, hypot((dX_46_u * floor(w)), (dX_46_v * floor(h)))) ^ single(2.0)), (t_1 ^ single(2.0))))); end tmp_2 = tmp; end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := dX.w \cdot \left\lfloord\right\rfloor\\
t_1 := \left\lfloorw\right\rfloor \cdot dY.u\\
\mathbf{if}\;dX.v \leq 5000000:\\
\;\;\;\;\log_{2} \left(\sqrt{\mathsf{max}\left({t\_0}^{2}, {\left(\mathsf{hypot}\left(\left\lfloord\right\rfloor \cdot dY.w, \mathsf{hypot}\left(t\_1, \left\lfloorh\right\rfloor \cdot dY.v\right)\right)\right)}^{2}\right)}\right)\\
\mathbf{else}:\\
\;\;\;\;\log_{2} \left(\sqrt{\mathsf{max}\left({\left(\mathsf{hypot}\left(t\_0, \mathsf{hypot}\left(dX.u \cdot \left\lfloorw\right\rfloor, dX.v \cdot \left\lfloorh\right\rfloor\right)\right)\right)}^{2}, {t\_1}^{2}\right)}\right)\\
\end{array}
\end{array}
if dX.v < 5e6Initial program 71.9%
Taylor expanded in w around 0 71.9%
Simplified71.9%
Taylor expanded in dX.w around inf 60.6%
unpow260.6%
unpow260.6%
swap-sqr60.6%
unpow260.6%
Simplified60.6%
if 5e6 < dX.v Initial program 51.2%
Taylor expanded in w around 0 51.1%
Simplified51.2%
Taylor expanded in dY.u around inf 46.8%
*-commutative46.8%
Simplified46.8%
Taylor expanded in dX.w around 0 46.8%
Simplified46.8%
(FPCore (w h d dX.u dX.v dX.w dY.u dY.v dY.w)
:precision binary32
(let* ((t_0 (* dX.w (floor d))) (t_1 (* (floor d) dY.w)))
(if (<= dX.u 6000.0)
(log2
(sqrt
(fmax
(pow t_0 2.0)
(pow (hypot t_1 (hypot (* (floor w) dY.u) (* (floor h) dY.v))) 2.0))))
(log2
(sqrt
(fmax
(pow (hypot t_0 (hypot (* dX.u (floor w)) (* dX.v (floor h)))) 2.0)
(pow t_1 2.0)))))))
float code(float w, float h, float d, float dX_46_u, float dX_46_v, float dX_46_w, float dY_46_u, float dY_46_v, float dY_46_w) {
float t_0 = dX_46_w * floorf(d);
float t_1 = floorf(d) * dY_46_w;
float tmp;
if (dX_46_u <= 6000.0f) {
tmp = log2f(sqrtf(fmaxf(powf(t_0, 2.0f), powf(hypotf(t_1, hypotf((floorf(w) * dY_46_u), (floorf(h) * dY_46_v))), 2.0f))));
} else {
tmp = log2f(sqrtf(fmaxf(powf(hypotf(t_0, hypotf((dX_46_u * floorf(w)), (dX_46_v * floorf(h)))), 2.0f), powf(t_1, 2.0f))));
}
return tmp;
}
function code(w, h, d, dX_46_u, dX_46_v, dX_46_w, dY_46_u, dY_46_v, dY_46_w) t_0 = Float32(dX_46_w * floor(d)) t_1 = Float32(floor(d) * dY_46_w) tmp = Float32(0.0) if (dX_46_u <= Float32(6000.0)) tmp = log2(sqrt((((t_0 ^ Float32(2.0)) != (t_0 ^ Float32(2.0))) ? (hypot(t_1, hypot(Float32(floor(w) * dY_46_u), Float32(floor(h) * dY_46_v))) ^ Float32(2.0)) : (((hypot(t_1, hypot(Float32(floor(w) * dY_46_u), Float32(floor(h) * dY_46_v))) ^ Float32(2.0)) != (hypot(t_1, hypot(Float32(floor(w) * dY_46_u), Float32(floor(h) * dY_46_v))) ^ Float32(2.0))) ? (t_0 ^ Float32(2.0)) : max((t_0 ^ Float32(2.0)), (hypot(t_1, hypot(Float32(floor(w) * dY_46_u), Float32(floor(h) * dY_46_v))) ^ Float32(2.0))))))); else tmp = log2(sqrt((((hypot(t_0, hypot(Float32(dX_46_u * floor(w)), Float32(dX_46_v * floor(h)))) ^ Float32(2.0)) != (hypot(t_0, hypot(Float32(dX_46_u * floor(w)), Float32(dX_46_v * floor(h)))) ^ Float32(2.0))) ? (t_1 ^ Float32(2.0)) : (((t_1 ^ Float32(2.0)) != (t_1 ^ Float32(2.0))) ? (hypot(t_0, hypot(Float32(dX_46_u * floor(w)), Float32(dX_46_v * floor(h)))) ^ Float32(2.0)) : max((hypot(t_0, hypot(Float32(dX_46_u * floor(w)), Float32(dX_46_v * floor(h)))) ^ Float32(2.0)), (t_1 ^ Float32(2.0))))))); end return tmp end
function tmp_2 = code(w, h, d, dX_46_u, dX_46_v, dX_46_w, dY_46_u, dY_46_v, dY_46_w) t_0 = dX_46_w * floor(d); t_1 = floor(d) * dY_46_w; tmp = single(0.0); if (dX_46_u <= single(6000.0)) tmp = log2(sqrt(max((t_0 ^ single(2.0)), (hypot(t_1, hypot((floor(w) * dY_46_u), (floor(h) * dY_46_v))) ^ single(2.0))))); else tmp = log2(sqrt(max((hypot(t_0, hypot((dX_46_u * floor(w)), (dX_46_v * floor(h)))) ^ single(2.0)), (t_1 ^ single(2.0))))); end tmp_2 = tmp; end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := dX.w \cdot \left\lfloord\right\rfloor\\
t_1 := \left\lfloord\right\rfloor \cdot dY.w\\
\mathbf{if}\;dX.u \leq 6000:\\
\;\;\;\;\log_{2} \left(\sqrt{\mathsf{max}\left({t\_0}^{2}, {\left(\mathsf{hypot}\left(t\_1, \mathsf{hypot}\left(\left\lfloorw\right\rfloor \cdot dY.u, \left\lfloorh\right\rfloor \cdot dY.v\right)\right)\right)}^{2}\right)}\right)\\
\mathbf{else}:\\
\;\;\;\;\log_{2} \left(\sqrt{\mathsf{max}\left({\left(\mathsf{hypot}\left(t\_0, \mathsf{hypot}\left(dX.u \cdot \left\lfloorw\right\rfloor, dX.v \cdot \left\lfloorh\right\rfloor\right)\right)\right)}^{2}, {t\_1}^{2}\right)}\right)\\
\end{array}
\end{array}
if dX.u < 6e3Initial program 70.9%
Taylor expanded in w around 0 70.8%
Simplified70.9%
Taylor expanded in dX.w around inf 59.8%
unpow259.8%
unpow259.8%
swap-sqr59.8%
unpow259.8%
Simplified59.8%
if 6e3 < dX.u Initial program 54.4%
Taylor expanded in w around 0 54.4%
Simplified54.4%
Taylor expanded in dY.w around inf 50.2%
*-commutative50.2%
unpow250.2%
unpow250.2%
swap-sqr50.2%
unpow250.2%
Simplified50.2%
(FPCore (w h d dX.u dX.v dX.w dY.u dY.v dY.w)
:precision binary32
(let* ((t_0
(pow
(hypot
(* (floor d) dY.w)
(hypot (* (floor w) dY.u) (* (floor h) dY.v)))
2.0)))
(if (<= dX.w 20000.0)
(log2 (sqrt (fmax (pow (* dX.v (floor h)) 2.0) t_0)))
(log2 (sqrt (fmax (pow (* dX.w (floor d)) 2.0) t_0))))))
float code(float w, float h, float d, float dX_46_u, float dX_46_v, float dX_46_w, float dY_46_u, float dY_46_v, float dY_46_w) {
float t_0 = powf(hypotf((floorf(d) * dY_46_w), hypotf((floorf(w) * dY_46_u), (floorf(h) * dY_46_v))), 2.0f);
float tmp;
if (dX_46_w <= 20000.0f) {
tmp = log2f(sqrtf(fmaxf(powf((dX_46_v * floorf(h)), 2.0f), t_0)));
} else {
tmp = log2f(sqrtf(fmaxf(powf((dX_46_w * floorf(d)), 2.0f), t_0)));
}
return tmp;
}
function code(w, h, d, dX_46_u, dX_46_v, dX_46_w, dY_46_u, dY_46_v, dY_46_w) t_0 = hypot(Float32(floor(d) * dY_46_w), hypot(Float32(floor(w) * dY_46_u), Float32(floor(h) * dY_46_v))) ^ Float32(2.0) tmp = Float32(0.0) if (dX_46_w <= Float32(20000.0)) tmp = log2(sqrt((((Float32(dX_46_v * floor(h)) ^ Float32(2.0)) != (Float32(dX_46_v * floor(h)) ^ Float32(2.0))) ? t_0 : ((t_0 != t_0) ? (Float32(dX_46_v * floor(h)) ^ Float32(2.0)) : max((Float32(dX_46_v * floor(h)) ^ Float32(2.0)), t_0))))); else tmp = log2(sqrt((((Float32(dX_46_w * floor(d)) ^ Float32(2.0)) != (Float32(dX_46_w * floor(d)) ^ Float32(2.0))) ? t_0 : ((t_0 != t_0) ? (Float32(dX_46_w * floor(d)) ^ Float32(2.0)) : max((Float32(dX_46_w * floor(d)) ^ Float32(2.0)), t_0))))); end return tmp end
function tmp_2 = code(w, h, d, dX_46_u, dX_46_v, dX_46_w, dY_46_u, dY_46_v, dY_46_w) t_0 = hypot((floor(d) * dY_46_w), hypot((floor(w) * dY_46_u), (floor(h) * dY_46_v))) ^ single(2.0); tmp = single(0.0); if (dX_46_w <= single(20000.0)) tmp = log2(sqrt(max(((dX_46_v * floor(h)) ^ single(2.0)), t_0))); else tmp = log2(sqrt(max(((dX_46_w * floor(d)) ^ single(2.0)), t_0))); end tmp_2 = tmp; end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := {\left(\mathsf{hypot}\left(\left\lfloord\right\rfloor \cdot dY.w, \mathsf{hypot}\left(\left\lfloorw\right\rfloor \cdot dY.u, \left\lfloorh\right\rfloor \cdot dY.v\right)\right)\right)}^{2}\\
\mathbf{if}\;dX.w \leq 20000:\\
\;\;\;\;\log_{2} \left(\sqrt{\mathsf{max}\left({\left(dX.v \cdot \left\lfloorh\right\rfloor\right)}^{2}, t\_0\right)}\right)\\
\mathbf{else}:\\
\;\;\;\;\log_{2} \left(\sqrt{\mathsf{max}\left({\left(dX.w \cdot \left\lfloord\right\rfloor\right)}^{2}, t\_0\right)}\right)\\
\end{array}
\end{array}
if dX.w < 2e4Initial program 70.6%
Taylor expanded in w around 0 70.6%
Simplified70.6%
Taylor expanded in dX.v around inf 59.5%
Taylor expanded in dX.v around 0 59.5%
Simplified59.5%
if 2e4 < dX.w Initial program 57.3%
Taylor expanded in w around 0 57.3%
Simplified57.3%
Taylor expanded in dX.w around inf 55.7%
unpow255.7%
unpow255.7%
swap-sqr55.7%
unpow255.7%
Simplified55.7%
Final simplification58.8%
(FPCore (w h d dX.u dX.v dX.w dY.u dY.v dY.w)
:precision binary32
(log2
(sqrt
(fmax
(pow (* dX.v (floor h)) 2.0)
(pow
(hypot (* (floor d) dY.w) (hypot (* (floor w) dY.u) (* (floor h) dY.v)))
2.0)))))
float code(float w, float h, float d, float dX_46_u, float dX_46_v, float dX_46_w, float dY_46_u, float dY_46_v, float dY_46_w) {
return log2f(sqrtf(fmaxf(powf((dX_46_v * floorf(h)), 2.0f), powf(hypotf((floorf(d) * dY_46_w), hypotf((floorf(w) * dY_46_u), (floorf(h) * dY_46_v))), 2.0f))));
}
function code(w, h, d, dX_46_u, dX_46_v, dX_46_w, dY_46_u, dY_46_v, dY_46_w) return log2(sqrt((((Float32(dX_46_v * floor(h)) ^ Float32(2.0)) != (Float32(dX_46_v * floor(h)) ^ Float32(2.0))) ? (hypot(Float32(floor(d) * dY_46_w), hypot(Float32(floor(w) * dY_46_u), Float32(floor(h) * dY_46_v))) ^ Float32(2.0)) : (((hypot(Float32(floor(d) * dY_46_w), hypot(Float32(floor(w) * dY_46_u), Float32(floor(h) * dY_46_v))) ^ Float32(2.0)) != (hypot(Float32(floor(d) * dY_46_w), hypot(Float32(floor(w) * dY_46_u), Float32(floor(h) * dY_46_v))) ^ Float32(2.0))) ? (Float32(dX_46_v * floor(h)) ^ Float32(2.0)) : max((Float32(dX_46_v * floor(h)) ^ Float32(2.0)), (hypot(Float32(floor(d) * dY_46_w), hypot(Float32(floor(w) * dY_46_u), Float32(floor(h) * dY_46_v))) ^ Float32(2.0))))))) end
function tmp = code(w, h, d, dX_46_u, dX_46_v, dX_46_w, dY_46_u, dY_46_v, dY_46_w) tmp = log2(sqrt(max(((dX_46_v * floor(h)) ^ single(2.0)), (hypot((floor(d) * dY_46_w), hypot((floor(w) * dY_46_u), (floor(h) * dY_46_v))) ^ single(2.0))))); end
\begin{array}{l}
\\
\log_{2} \left(\sqrt{\mathsf{max}\left({\left(dX.v \cdot \left\lfloorh\right\rfloor\right)}^{2}, {\left(\mathsf{hypot}\left(\left\lfloord\right\rfloor \cdot dY.w, \mathsf{hypot}\left(\left\lfloorw\right\rfloor \cdot dY.u, \left\lfloorh\right\rfloor \cdot dY.v\right)\right)\right)}^{2}\right)}\right)
\end{array}
Initial program 68.2%
Taylor expanded in w around 0 68.2%
Simplified68.2%
Taylor expanded in dX.v around inf 54.4%
Taylor expanded in dX.v around 0 54.4%
Simplified54.4%
Final simplification54.4%
herbie shell --seed 2024111
(FPCore (w h d dX.u dX.v dX.w dY.u dY.v dY.w)
:name "Isotropic LOD (LOD)"
:precision binary32
:pre (and (and (and (and (and (and (and (and (and (<= 1.0 w) (<= w 16384.0)) (and (<= 1.0 h) (<= h 16384.0))) (and (<= 1.0 d) (<= d 4096.0))) (and (<= 1e-20 (fabs dX.u)) (<= (fabs dX.u) 1e+20))) (and (<= 1e-20 (fabs dX.v)) (<= (fabs dX.v) 1e+20))) (and (<= 1e-20 (fabs dX.w)) (<= (fabs dX.w) 1e+20))) (and (<= 1e-20 (fabs dY.u)) (<= (fabs dY.u) 1e+20))) (and (<= 1e-20 (fabs dY.v)) (<= (fabs dY.v) 1e+20))) (and (<= 1e-20 (fabs dY.w)) (<= (fabs dY.w) 1e+20)))
(log2 (sqrt (fmax (+ (+ (* (* (floor w) dX.u) (* (floor w) dX.u)) (* (* (floor h) dX.v) (* (floor h) dX.v))) (* (* (floor d) dX.w) (* (floor d) dX.w))) (+ (+ (* (* (floor w) dY.u) (* (floor w) dY.u)) (* (* (floor h) dY.v) (* (floor h) dY.v))) (* (* (floor d) dY.w) (* (floor d) dY.w)))))))