
(FPCore (x y z) :precision binary64 (+ (* x y) (* (- 1.0 x) z)))
double code(double x, double y, double z) {
return (x * y) + ((1.0 - x) * z);
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
code = (x * y) + ((1.0d0 - x) * z)
end function
public static double code(double x, double y, double z) {
return (x * y) + ((1.0 - x) * z);
}
def code(x, y, z): return (x * y) + ((1.0 - x) * z)
function code(x, y, z) return Float64(Float64(x * y) + Float64(Float64(1.0 - x) * z)) end
function tmp = code(x, y, z) tmp = (x * y) + ((1.0 - x) * z); end
code[x_, y_, z_] := N[(N[(x * y), $MachinePrecision] + N[(N[(1.0 - x), $MachinePrecision] * z), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
x \cdot y + \left(1 - x\right) \cdot z
\end{array}
Sampling outcomes in binary64 precision:
Herbie found 7 alternatives:
| Alternative | Accuracy | Speedup |
|---|
(FPCore (x y z) :precision binary64 (+ (* x y) (* (- 1.0 x) z)))
double code(double x, double y, double z) {
return (x * y) + ((1.0 - x) * z);
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
code = (x * y) + ((1.0d0 - x) * z)
end function
public static double code(double x, double y, double z) {
return (x * y) + ((1.0 - x) * z);
}
def code(x, y, z): return (x * y) + ((1.0 - x) * z)
function code(x, y, z) return Float64(Float64(x * y) + Float64(Float64(1.0 - x) * z)) end
function tmp = code(x, y, z) tmp = (x * y) + ((1.0 - x) * z); end
code[x_, y_, z_] := N[(N[(x * y), $MachinePrecision] + N[(N[(1.0 - x), $MachinePrecision] * z), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
x \cdot y + \left(1 - x\right) \cdot z
\end{array}
(FPCore (x y z) :precision binary64 (fma x (- y z) z))
double code(double x, double y, double z) {
return fma(x, (y - z), z);
}
function code(x, y, z) return fma(x, Float64(y - z), z) end
code[x_, y_, z_] := N[(x * N[(y - z), $MachinePrecision] + z), $MachinePrecision]
\begin{array}{l}
\\
\mathsf{fma}\left(x, y - z, z\right)
\end{array}
Initial program 97.6%
*-commutative97.6%
distribute-lft-out--97.6%
*-rgt-identity97.6%
cancel-sign-sub-inv97.6%
+-commutative97.6%
associate-+r+97.6%
+-commutative97.6%
*-commutative97.6%
distribute-rgt-out100.0%
fma-define100.0%
+-commutative100.0%
unsub-neg100.0%
Simplified100.0%
(FPCore (x y z) :precision binary64 (if (or (<= x -210000.0) (not (<= x 1.0))) (* x (- y z)) (+ z (* x y))))
double code(double x, double y, double z) {
double tmp;
if ((x <= -210000.0) || !(x <= 1.0)) {
tmp = x * (y - z);
} else {
tmp = z + (x * y);
}
return tmp;
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
real(8) :: tmp
if ((x <= (-210000.0d0)) .or. (.not. (x <= 1.0d0))) then
tmp = x * (y - z)
else
tmp = z + (x * y)
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if ((x <= -210000.0) || !(x <= 1.0)) {
tmp = x * (y - z);
} else {
tmp = z + (x * y);
}
return tmp;
}
def code(x, y, z): tmp = 0 if (x <= -210000.0) or not (x <= 1.0): tmp = x * (y - z) else: tmp = z + (x * y) return tmp
function code(x, y, z) tmp = 0.0 if ((x <= -210000.0) || !(x <= 1.0)) tmp = Float64(x * Float64(y - z)); else tmp = Float64(z + Float64(x * y)); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((x <= -210000.0) || ~((x <= 1.0))) tmp = x * (y - z); else tmp = z + (x * y); end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[x, -210000.0], N[Not[LessEqual[x, 1.0]], $MachinePrecision]], N[(x * N[(y - z), $MachinePrecision]), $MachinePrecision], N[(z + N[(x * y), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -210000 \lor \neg \left(x \leq 1\right):\\
\;\;\;\;x \cdot \left(y - z\right)\\
\mathbf{else}:\\
\;\;\;\;z + x \cdot y\\
\end{array}
\end{array}
if x < -2.1e5 or 1 < x Initial program 95.4%
Taylor expanded in x around inf 98.8%
neg-mul-198.8%
sub-neg98.8%
Simplified98.8%
if -2.1e5 < x < 1Initial program 100.0%
Taylor expanded in x around 0 98.6%
Final simplification98.7%
(FPCore (x y z) :precision binary64 (if (or (<= z -2.45e+54) (not (<= z 1.45e+122))) (* z (- 1.0 x)) (* x (- y z))))
double code(double x, double y, double z) {
double tmp;
if ((z <= -2.45e+54) || !(z <= 1.45e+122)) {
tmp = z * (1.0 - x);
} else {
tmp = x * (y - z);
}
return tmp;
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
real(8) :: tmp
if ((z <= (-2.45d+54)) .or. (.not. (z <= 1.45d+122))) then
tmp = z * (1.0d0 - x)
else
tmp = x * (y - z)
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if ((z <= -2.45e+54) || !(z <= 1.45e+122)) {
tmp = z * (1.0 - x);
} else {
tmp = x * (y - z);
}
return tmp;
}
def code(x, y, z): tmp = 0 if (z <= -2.45e+54) or not (z <= 1.45e+122): tmp = z * (1.0 - x) else: tmp = x * (y - z) return tmp
function code(x, y, z) tmp = 0.0 if ((z <= -2.45e+54) || !(z <= 1.45e+122)) tmp = Float64(z * Float64(1.0 - x)); else tmp = Float64(x * Float64(y - z)); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((z <= -2.45e+54) || ~((z <= 1.45e+122))) tmp = z * (1.0 - x); else tmp = x * (y - z); end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[z, -2.45e+54], N[Not[LessEqual[z, 1.45e+122]], $MachinePrecision]], N[(z * N[(1.0 - x), $MachinePrecision]), $MachinePrecision], N[(x * N[(y - z), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;z \leq -2.45 \cdot 10^{+54} \lor \neg \left(z \leq 1.45 \cdot 10^{+122}\right):\\
\;\;\;\;z \cdot \left(1 - x\right)\\
\mathbf{else}:\\
\;\;\;\;x \cdot \left(y - z\right)\\
\end{array}
\end{array}
if z < -2.45e54 or 1.45e122 < z Initial program 95.5%
Taylor expanded in z around inf 98.9%
Taylor expanded in z around inf 92.4%
if -2.45e54 < z < 1.45e122Initial program 98.8%
Taylor expanded in x around inf 80.9%
neg-mul-180.9%
sub-neg80.9%
Simplified80.9%
Final simplification84.9%
(FPCore (x y z) :precision binary64 (if (or (<= x -3.5e-8) (not (<= x 3.75e-100))) (* x (- y z)) z))
double code(double x, double y, double z) {
double tmp;
if ((x <= -3.5e-8) || !(x <= 3.75e-100)) {
tmp = x * (y - z);
} else {
tmp = z;
}
return tmp;
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
real(8) :: tmp
if ((x <= (-3.5d-8)) .or. (.not. (x <= 3.75d-100))) then
tmp = x * (y - z)
else
tmp = z
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if ((x <= -3.5e-8) || !(x <= 3.75e-100)) {
tmp = x * (y - z);
} else {
tmp = z;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (x <= -3.5e-8) or not (x <= 3.75e-100): tmp = x * (y - z) else: tmp = z return tmp
function code(x, y, z) tmp = 0.0 if ((x <= -3.5e-8) || !(x <= 3.75e-100)) tmp = Float64(x * Float64(y - z)); else tmp = z; end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((x <= -3.5e-8) || ~((x <= 3.75e-100))) tmp = x * (y - z); else tmp = z; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[x, -3.5e-8], N[Not[LessEqual[x, 3.75e-100]], $MachinePrecision]], N[(x * N[(y - z), $MachinePrecision]), $MachinePrecision], z]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -3.5 \cdot 10^{-8} \lor \neg \left(x \leq 3.75 \cdot 10^{-100}\right):\\
\;\;\;\;x \cdot \left(y - z\right)\\
\mathbf{else}:\\
\;\;\;\;z\\
\end{array}
\end{array}
if x < -3.50000000000000024e-8 or 3.75000000000000007e-100 < x Initial program 96.1%
Taylor expanded in x around inf 93.5%
neg-mul-193.5%
sub-neg93.5%
Simplified93.5%
if -3.50000000000000024e-8 < x < 3.75000000000000007e-100Initial program 100.0%
Taylor expanded in z around inf 96.2%
Taylor expanded in x around 0 70.4%
Final simplification84.3%
(FPCore (x y z) :precision binary64 (if (or (<= x -6.5e-8) (not (<= x 4.05e-100))) (* x y) z))
double code(double x, double y, double z) {
double tmp;
if ((x <= -6.5e-8) || !(x <= 4.05e-100)) {
tmp = x * y;
} else {
tmp = z;
}
return tmp;
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
real(8) :: tmp
if ((x <= (-6.5d-8)) .or. (.not. (x <= 4.05d-100))) then
tmp = x * y
else
tmp = z
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if ((x <= -6.5e-8) || !(x <= 4.05e-100)) {
tmp = x * y;
} else {
tmp = z;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (x <= -6.5e-8) or not (x <= 4.05e-100): tmp = x * y else: tmp = z return tmp
function code(x, y, z) tmp = 0.0 if ((x <= -6.5e-8) || !(x <= 4.05e-100)) tmp = Float64(x * y); else tmp = z; end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((x <= -6.5e-8) || ~((x <= 4.05e-100))) tmp = x * y; else tmp = z; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[x, -6.5e-8], N[Not[LessEqual[x, 4.05e-100]], $MachinePrecision]], N[(x * y), $MachinePrecision], z]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -6.5 \cdot 10^{-8} \lor \neg \left(x \leq 4.05 \cdot 10^{-100}\right):\\
\;\;\;\;x \cdot y\\
\mathbf{else}:\\
\;\;\;\;z\\
\end{array}
\end{array}
if x < -6.49999999999999997e-8 or 4.05e-100 < x Initial program 96.1%
Taylor expanded in y around inf 61.2%
if -6.49999999999999997e-8 < x < 4.05e-100Initial program 100.0%
Taylor expanded in z around inf 96.2%
Taylor expanded in x around 0 70.4%
Final simplification64.9%
(FPCore (x y z) :precision binary64 (+ z (* x (- y z))))
double code(double x, double y, double z) {
return z + (x * (y - z));
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
code = z + (x * (y - z))
end function
public static double code(double x, double y, double z) {
return z + (x * (y - z));
}
def code(x, y, z): return z + (x * (y - z))
function code(x, y, z) return Float64(z + Float64(x * Float64(y - z))) end
function tmp = code(x, y, z) tmp = z + (x * (y - z)); end
code[x_, y_, z_] := N[(z + N[(x * N[(y - z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
z + x \cdot \left(y - z\right)
\end{array}
Initial program 97.6%
+-commutative97.6%
remove-double-neg97.6%
distribute-rgt-neg-out97.6%
neg-sub097.6%
neg-sub097.6%
*-commutative97.6%
distribute-lft-neg-in97.6%
remove-double-neg97.6%
distribute-rgt-out--97.6%
*-lft-identity97.6%
associate-+l-97.6%
distribute-lft-out--100.0%
Simplified100.0%
Final simplification100.0%
(FPCore (x y z) :precision binary64 z)
double code(double x, double y, double z) {
return z;
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
code = z
end function
public static double code(double x, double y, double z) {
return z;
}
def code(x, y, z): return z
function code(x, y, z) return z end
function tmp = code(x, y, z) tmp = z; end
code[x_, y_, z_] := z
\begin{array}{l}
\\
z
\end{array}
Initial program 97.6%
Taylor expanded in z around inf 91.1%
Taylor expanded in x around 0 32.5%
herbie shell --seed 2024143
(FPCore (x y z)
:name "Diagrams.Backend.Rasterific:$crender from diagrams-rasterific-1.3.1.3"
:precision binary64
(+ (* x y) (* (- 1.0 x) z)))