
(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 98.4%
sub-neg98.4%
+-commutative98.4%
distribute-lft1-in98.4%
associate-+r+98.4%
+-commutative98.4%
*-commutative98.4%
neg-mul-198.4%
associate-*r*98.4%
*-commutative98.4%
distribute-rgt-out100.0%
fma-def100.0%
+-commutative100.0%
*-commutative100.0%
neg-mul-1100.0%
unsub-neg100.0%
Simplified100.0%
Final simplification100.0%
(FPCore (x y z) :precision binary64 (if (<= x -8.2e-75) (* x y) (if (<= x 1.8e-74) z (if (<= x 7.2e+130) (* x y) (* x (- z))))))
double code(double x, double y, double z) {
double tmp;
if (x <= -8.2e-75) {
tmp = x * y;
} else if (x <= 1.8e-74) {
tmp = z;
} else if (x <= 7.2e+130) {
tmp = x * y;
} else {
tmp = x * -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 <= (-8.2d-75)) then
tmp = x * y
else if (x <= 1.8d-74) then
tmp = z
else if (x <= 7.2d+130) then
tmp = x * y
else
tmp = x * -z
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if (x <= -8.2e-75) {
tmp = x * y;
} else if (x <= 1.8e-74) {
tmp = z;
} else if (x <= 7.2e+130) {
tmp = x * y;
} else {
tmp = x * -z;
}
return tmp;
}
def code(x, y, z): tmp = 0 if x <= -8.2e-75: tmp = x * y elif x <= 1.8e-74: tmp = z elif x <= 7.2e+130: tmp = x * y else: tmp = x * -z return tmp
function code(x, y, z) tmp = 0.0 if (x <= -8.2e-75) tmp = Float64(x * y); elseif (x <= 1.8e-74) tmp = z; elseif (x <= 7.2e+130) tmp = Float64(x * y); else tmp = Float64(x * Float64(-z)); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if (x <= -8.2e-75) tmp = x * y; elseif (x <= 1.8e-74) tmp = z; elseif (x <= 7.2e+130) tmp = x * y; else tmp = x * -z; end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[x, -8.2e-75], N[(x * y), $MachinePrecision], If[LessEqual[x, 1.8e-74], z, If[LessEqual[x, 7.2e+130], N[(x * y), $MachinePrecision], N[(x * (-z)), $MachinePrecision]]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -8.2 \cdot 10^{-75}:\\
\;\;\;\;x \cdot y\\
\mathbf{elif}\;x \leq 1.8 \cdot 10^{-74}:\\
\;\;\;\;z\\
\mathbf{elif}\;x \leq 7.2 \cdot 10^{+130}:\\
\;\;\;\;x \cdot y\\
\mathbf{else}:\\
\;\;\;\;x \cdot \left(-z\right)\\
\end{array}
\end{array}
if x < -8.20000000000000005e-75 or 1.8000000000000001e-74 < x < 7.2000000000000002e130Initial program 98.5%
Taylor expanded in y around inf 66.8%
if -8.20000000000000005e-75 < x < 1.8000000000000001e-74Initial program 100.0%
Taylor expanded in x around 0 77.7%
if 7.2000000000000002e130 < x Initial program 94.4%
Taylor expanded in y around 0 69.9%
Taylor expanded in x around inf 69.9%
mul-1-neg69.9%
distribute-rgt-neg-out69.9%
Simplified69.9%
Final simplification71.0%
(FPCore (x y z) :precision binary64 (if (or (<= z -5400000000.0) (not (<= z 9.8e-29))) (* z (- 1.0 x)) (* x y)))
double code(double x, double y, double z) {
double tmp;
if ((z <= -5400000000.0) || !(z <= 9.8e-29)) {
tmp = z * (1.0 - x);
} else {
tmp = 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 ((z <= (-5400000000.0d0)) .or. (.not. (z <= 9.8d-29))) then
tmp = z * (1.0d0 - x)
else
tmp = x * y
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if ((z <= -5400000000.0) || !(z <= 9.8e-29)) {
tmp = z * (1.0 - x);
} else {
tmp = x * y;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (z <= -5400000000.0) or not (z <= 9.8e-29): tmp = z * (1.0 - x) else: tmp = x * y return tmp
function code(x, y, z) tmp = 0.0 if ((z <= -5400000000.0) || !(z <= 9.8e-29)) tmp = Float64(z * Float64(1.0 - x)); else tmp = Float64(x * y); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((z <= -5400000000.0) || ~((z <= 9.8e-29))) tmp = z * (1.0 - x); else tmp = x * y; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[z, -5400000000.0], N[Not[LessEqual[z, 9.8e-29]], $MachinePrecision]], N[(z * N[(1.0 - x), $MachinePrecision]), $MachinePrecision], N[(x * y), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;z \leq -5400000000 \lor \neg \left(z \leq 9.8 \cdot 10^{-29}\right):\\
\;\;\;\;z \cdot \left(1 - x\right)\\
\mathbf{else}:\\
\;\;\;\;x \cdot y\\
\end{array}
\end{array}
if z < -5.4e9 or 9.7999999999999997e-29 < z Initial program 96.9%
Taylor expanded in y around 0 85.8%
if -5.4e9 < z < 9.7999999999999997e-29Initial program 100.0%
Taylor expanded in y around inf 73.9%
Final simplification79.9%
(FPCore (x y z) :precision binary64 (if (or (<= x -8.8e-75) (not (<= x 5.2e-74))) (* x (- y z)) (* z (- 1.0 x))))
double code(double x, double y, double z) {
double tmp;
if ((x <= -8.8e-75) || !(x <= 5.2e-74)) {
tmp = x * (y - z);
} else {
tmp = z * (1.0 - x);
}
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 <= (-8.8d-75)) .or. (.not. (x <= 5.2d-74))) then
tmp = x * (y - z)
else
tmp = z * (1.0d0 - x)
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if ((x <= -8.8e-75) || !(x <= 5.2e-74)) {
tmp = x * (y - z);
} else {
tmp = z * (1.0 - x);
}
return tmp;
}
def code(x, y, z): tmp = 0 if (x <= -8.8e-75) or not (x <= 5.2e-74): tmp = x * (y - z) else: tmp = z * (1.0 - x) return tmp
function code(x, y, z) tmp = 0.0 if ((x <= -8.8e-75) || !(x <= 5.2e-74)) tmp = Float64(x * Float64(y - z)); else tmp = Float64(z * Float64(1.0 - x)); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((x <= -8.8e-75) || ~((x <= 5.2e-74))) tmp = x * (y - z); else tmp = z * (1.0 - x); end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[x, -8.8e-75], N[Not[LessEqual[x, 5.2e-74]], $MachinePrecision]], N[(x * N[(y - z), $MachinePrecision]), $MachinePrecision], N[(z * N[(1.0 - x), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -8.8 \cdot 10^{-75} \lor \neg \left(x \leq 5.2 \cdot 10^{-74}\right):\\
\;\;\;\;x \cdot \left(y - z\right)\\
\mathbf{else}:\\
\;\;\;\;z \cdot \left(1 - x\right)\\
\end{array}
\end{array}
if x < -8.80000000000000022e-75 or 5.2000000000000002e-74 < x Initial program 97.6%
Taylor expanded in x around inf 96.4%
neg-mul-196.4%
+-commutative96.4%
unsub-neg96.4%
Simplified96.4%
if -8.80000000000000022e-75 < x < 5.2000000000000002e-74Initial program 100.0%
Taylor expanded in y around 0 77.7%
Final simplification90.0%
(FPCore (x y z) :precision binary64 (+ (* z (- 1.0 x)) (* x y)))
double code(double x, double y, double z) {
return (z * (1.0 - x)) + (x * y);
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
code = (z * (1.0d0 - x)) + (x * y)
end function
public static double code(double x, double y, double z) {
return (z * (1.0 - x)) + (x * y);
}
def code(x, y, z): return (z * (1.0 - x)) + (x * y)
function code(x, y, z) return Float64(Float64(z * Float64(1.0 - x)) + Float64(x * y)) end
function tmp = code(x, y, z) tmp = (z * (1.0 - x)) + (x * y); end
code[x_, y_, z_] := N[(N[(z * N[(1.0 - x), $MachinePrecision]), $MachinePrecision] + N[(x * y), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
z \cdot \left(1 - x\right) + x \cdot y
\end{array}
Initial program 98.4%
Final simplification98.4%
(FPCore (x y z) :precision binary64 (if (<= x -8.2e-75) (* x y) (if (<= x 4.8e-74) z (* x y))))
double code(double x, double y, double z) {
double tmp;
if (x <= -8.2e-75) {
tmp = x * y;
} else if (x <= 4.8e-74) {
tmp = z;
} else {
tmp = 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 <= (-8.2d-75)) then
tmp = x * y
else if (x <= 4.8d-74) then
tmp = z
else
tmp = x * y
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if (x <= -8.2e-75) {
tmp = x * y;
} else if (x <= 4.8e-74) {
tmp = z;
} else {
tmp = x * y;
}
return tmp;
}
def code(x, y, z): tmp = 0 if x <= -8.2e-75: tmp = x * y elif x <= 4.8e-74: tmp = z else: tmp = x * y return tmp
function code(x, y, z) tmp = 0.0 if (x <= -8.2e-75) tmp = Float64(x * y); elseif (x <= 4.8e-74) tmp = z; else tmp = Float64(x * y); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if (x <= -8.2e-75) tmp = x * y; elseif (x <= 4.8e-74) tmp = z; else tmp = x * y; end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[x, -8.2e-75], N[(x * y), $MachinePrecision], If[LessEqual[x, 4.8e-74], z, N[(x * y), $MachinePrecision]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -8.2 \cdot 10^{-75}:\\
\;\;\;\;x \cdot y\\
\mathbf{elif}\;x \leq 4.8 \cdot 10^{-74}:\\
\;\;\;\;z\\
\mathbf{else}:\\
\;\;\;\;x \cdot y\\
\end{array}
\end{array}
if x < -8.20000000000000005e-75 or 4.7999999999999998e-74 < x Initial program 97.6%
Taylor expanded in y around inf 60.9%
if -8.20000000000000005e-75 < x < 4.7999999999999998e-74Initial program 100.0%
Taylor expanded in x around 0 77.7%
Final simplification66.6%
(FPCore (x y z) :precision binary64 z)
double code(double x, double y, double z) {
return z;
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
code = z
end function
public static double code(double x, double y, double z) {
return z;
}
def code(x, y, z): return z
function code(x, y, z) return z end
function tmp = code(x, y, z) tmp = z; end
code[x_, y_, z_] := z
\begin{array}{l}
\\
z
\end{array}
Initial program 98.4%
Taylor expanded in x around 0 30.8%
Final simplification30.8%
herbie shell --seed 2023207
(FPCore (x y z)
:name "Diagrams.Backend.Rasterific:$crender from diagrams-rasterific-1.3.1.3"
:precision binary64
(+ (* x y) (* (- 1.0 x) z)))