
(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 6 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 (- z (* x (- z y))))
double code(double x, double y, double z) {
return z - (x * (z - 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 - (x * (z - y))
end function
public static double code(double x, double y, double z) {
return z - (x * (z - y));
}
def code(x, y, z): return z - (x * (z - y))
function code(x, y, z) return Float64(z - Float64(x * Float64(z - y))) end
function tmp = code(x, y, z) tmp = z - (x * (z - y)); end
code[x_, y_, z_] := N[(z - N[(x * N[(z - y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
z - x \cdot \left(z - y\right)
\end{array}
Initial program 97.7%
+-commutative97.7%
remove-double-neg97.7%
distribute-rgt-neg-out97.7%
neg-sub097.7%
neg-sub097.7%
*-commutative97.7%
distribute-lft-neg-in97.7%
remove-double-neg97.7%
distribute-rgt-out--97.7%
*-lft-identity97.7%
associate-+l-97.7%
distribute-lft-out--100.0%
Simplified100.0%
(FPCore (x y z)
:precision binary64
(let* ((t_0 (* z (- x))))
(if (<= x -5.5e+60)
(* x y)
(if (<= x -1.0)
t_0
(if (<= x 4.1e-57) z (if (<= x 4.2e+40) (* x y) t_0))))))
double code(double x, double y, double z) {
double t_0 = z * -x;
double tmp;
if (x <= -5.5e+60) {
tmp = x * y;
} else if (x <= -1.0) {
tmp = t_0;
} else if (x <= 4.1e-57) {
tmp = z;
} else if (x <= 4.2e+40) {
tmp = x * y;
} else {
tmp = t_0;
}
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) :: t_0
real(8) :: tmp
t_0 = z * -x
if (x <= (-5.5d+60)) then
tmp = x * y
else if (x <= (-1.0d0)) then
tmp = t_0
else if (x <= 4.1d-57) then
tmp = z
else if (x <= 4.2d+40) then
tmp = x * y
else
tmp = t_0
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double t_0 = z * -x;
double tmp;
if (x <= -5.5e+60) {
tmp = x * y;
} else if (x <= -1.0) {
tmp = t_0;
} else if (x <= 4.1e-57) {
tmp = z;
} else if (x <= 4.2e+40) {
tmp = x * y;
} else {
tmp = t_0;
}
return tmp;
}
def code(x, y, z): t_0 = z * -x tmp = 0 if x <= -5.5e+60: tmp = x * y elif x <= -1.0: tmp = t_0 elif x <= 4.1e-57: tmp = z elif x <= 4.2e+40: tmp = x * y else: tmp = t_0 return tmp
function code(x, y, z) t_0 = Float64(z * Float64(-x)) tmp = 0.0 if (x <= -5.5e+60) tmp = Float64(x * y); elseif (x <= -1.0) tmp = t_0; elseif (x <= 4.1e-57) tmp = z; elseif (x <= 4.2e+40) tmp = Float64(x * y); else tmp = t_0; end return tmp end
function tmp_2 = code(x, y, z) t_0 = z * -x; tmp = 0.0; if (x <= -5.5e+60) tmp = x * y; elseif (x <= -1.0) tmp = t_0; elseif (x <= 4.1e-57) tmp = z; elseif (x <= 4.2e+40) tmp = x * y; else tmp = t_0; end tmp_2 = tmp; end
code[x_, y_, z_] := Block[{t$95$0 = N[(z * (-x)), $MachinePrecision]}, If[LessEqual[x, -5.5e+60], N[(x * y), $MachinePrecision], If[LessEqual[x, -1.0], t$95$0, If[LessEqual[x, 4.1e-57], z, If[LessEqual[x, 4.2e+40], N[(x * y), $MachinePrecision], t$95$0]]]]]
\begin{array}{l}
\\
\begin{array}{l}
t_0 := z \cdot \left(-x\right)\\
\mathbf{if}\;x \leq -5.5 \cdot 10^{+60}:\\
\;\;\;\;x \cdot y\\
\mathbf{elif}\;x \leq -1:\\
\;\;\;\;t\_0\\
\mathbf{elif}\;x \leq 4.1 \cdot 10^{-57}:\\
\;\;\;\;z\\
\mathbf{elif}\;x \leq 4.2 \cdot 10^{+40}:\\
\;\;\;\;x \cdot y\\
\mathbf{else}:\\
\;\;\;\;t\_0\\
\end{array}
\end{array}
if x < -5.5000000000000001e60 or 4.1000000000000001e-57 < x < 4.2000000000000002e40Initial program 96.3%
+-commutative96.3%
remove-double-neg96.3%
distribute-rgt-neg-out96.3%
neg-sub096.3%
neg-sub096.3%
*-commutative96.3%
distribute-lft-neg-in96.3%
remove-double-neg96.3%
distribute-rgt-out--96.3%
*-lft-identity96.3%
associate-+l-96.3%
distribute-lft-out--100.0%
Simplified100.0%
Taylor expanded in z around 0 65.3%
if -5.5000000000000001e60 < x < -1 or 4.2000000000000002e40 < x Initial program 95.8%
+-commutative95.8%
remove-double-neg95.8%
distribute-rgt-neg-out95.8%
neg-sub095.8%
neg-sub095.8%
*-commutative95.8%
distribute-lft-neg-in95.8%
remove-double-neg95.8%
distribute-rgt-out--95.8%
*-lft-identity95.8%
associate-+l-95.8%
distribute-lft-out--100.0%
Simplified100.0%
Taylor expanded in x around inf 98.5%
Taylor expanded in y around 0 63.6%
associate-*r*63.6%
neg-mul-163.6%
Simplified63.6%
if -1 < x < 4.1000000000000001e-57Initial program 100.0%
+-commutative100.0%
remove-double-neg100.0%
distribute-rgt-neg-out100.0%
neg-sub0100.0%
neg-sub0100.0%
*-commutative100.0%
distribute-lft-neg-in100.0%
remove-double-neg100.0%
distribute-rgt-out--100.0%
*-lft-identity100.0%
associate-+l-100.0%
distribute-lft-out--100.0%
Simplified100.0%
Taylor expanded in z around inf 77.4%
Taylor expanded in x around 0 77.0%
Final simplification69.5%
(FPCore (x y z) :precision binary64 (if (or (<= x -1.0) (not (<= x 1.0))) (* x (- y z)) (+ z (* x y))))
double code(double x, double y, double z) {
double tmp;
if ((x <= -1.0) || !(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 <= (-1.0d0)) .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 <= -1.0) || !(x <= 1.0)) {
tmp = x * (y - z);
} else {
tmp = z + (x * y);
}
return tmp;
}
def code(x, y, z): tmp = 0 if (x <= -1.0) 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 <= -1.0) || !(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 <= -1.0) || ~((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, -1.0], 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 -1 \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 < -1 or 1 < x Initial program 95.8%
+-commutative95.8%
remove-double-neg95.8%
distribute-rgt-neg-out95.8%
neg-sub095.8%
neg-sub095.8%
*-commutative95.8%
distribute-lft-neg-in95.8%
remove-double-neg95.8%
distribute-rgt-out--95.8%
*-lft-identity95.8%
associate-+l-95.8%
distribute-lft-out--100.0%
Simplified100.0%
Taylor expanded in x around inf 99.0%
if -1 < x < 1Initial program 100.0%
+-commutative100.0%
remove-double-neg100.0%
distribute-rgt-neg-out100.0%
neg-sub0100.0%
neg-sub0100.0%
*-commutative100.0%
distribute-lft-neg-in100.0%
remove-double-neg100.0%
distribute-rgt-out--100.0%
*-lft-identity100.0%
associate-+l-100.0%
distribute-lft-out--100.0%
Simplified100.0%
Taylor expanded in z around 0 98.7%
mul-1-neg98.7%
distribute-rgt-neg-out98.7%
Simplified98.7%
*-commutative98.7%
cancel-sign-sub98.7%
*-commutative98.7%
+-commutative98.7%
Applied egg-rr98.7%
Final simplification98.9%
(FPCore (x y z) :precision binary64 (if (or (<= x -2.5e-8) (not (<= x 1.22e-52))) (* x (- y z)) z))
double code(double x, double y, double z) {
double tmp;
if ((x <= -2.5e-8) || !(x <= 1.22e-52)) {
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 <= (-2.5d-8)) .or. (.not. (x <= 1.22d-52))) 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 <= -2.5e-8) || !(x <= 1.22e-52)) {
tmp = x * (y - z);
} else {
tmp = z;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (x <= -2.5e-8) or not (x <= 1.22e-52): tmp = x * (y - z) else: tmp = z return tmp
function code(x, y, z) tmp = 0.0 if ((x <= -2.5e-8) || !(x <= 1.22e-52)) 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 <= -2.5e-8) || ~((x <= 1.22e-52))) tmp = x * (y - z); else tmp = z; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[x, -2.5e-8], N[Not[LessEqual[x, 1.22e-52]], $MachinePrecision]], N[(x * N[(y - z), $MachinePrecision]), $MachinePrecision], z]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -2.5 \cdot 10^{-8} \lor \neg \left(x \leq 1.22 \cdot 10^{-52}\right):\\
\;\;\;\;x \cdot \left(y - z\right)\\
\mathbf{else}:\\
\;\;\;\;z\\
\end{array}
\end{array}
if x < -2.4999999999999999e-8 or 1.22e-52 < x Initial program 96.1%
+-commutative96.1%
remove-double-neg96.1%
distribute-rgt-neg-out96.1%
neg-sub096.1%
neg-sub096.1%
*-commutative96.1%
distribute-lft-neg-in96.1%
remove-double-neg96.1%
distribute-rgt-out--96.1%
*-lft-identity96.1%
associate-+l-96.1%
distribute-lft-out--100.0%
Simplified100.0%
Taylor expanded in x around inf 97.1%
if -2.4999999999999999e-8 < x < 1.22e-52Initial program 100.0%
+-commutative100.0%
remove-double-neg100.0%
distribute-rgt-neg-out100.0%
neg-sub0100.0%
neg-sub0100.0%
*-commutative100.0%
distribute-lft-neg-in100.0%
remove-double-neg100.0%
distribute-rgt-out--100.0%
*-lft-identity100.0%
associate-+l-100.0%
distribute-lft-out--100.0%
Simplified100.0%
Taylor expanded in z around inf 77.4%
Taylor expanded in x around 0 77.0%
Final simplification89.1%
(FPCore (x y z) :precision binary64 (if (or (<= x -230000000.0) (not (<= x 1.45e-52))) (* x y) z))
double code(double x, double y, double z) {
double tmp;
if ((x <= -230000000.0) || !(x <= 1.45e-52)) {
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 <= (-230000000.0d0)) .or. (.not. (x <= 1.45d-52))) 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 <= -230000000.0) || !(x <= 1.45e-52)) {
tmp = x * y;
} else {
tmp = z;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (x <= -230000000.0) or not (x <= 1.45e-52): tmp = x * y else: tmp = z return tmp
function code(x, y, z) tmp = 0.0 if ((x <= -230000000.0) || !(x <= 1.45e-52)) tmp = Float64(x * y); else tmp = z; end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((x <= -230000000.0) || ~((x <= 1.45e-52))) tmp = x * y; else tmp = z; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[x, -230000000.0], N[Not[LessEqual[x, 1.45e-52]], $MachinePrecision]], N[(x * y), $MachinePrecision], z]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -230000000 \lor \neg \left(x \leq 1.45 \cdot 10^{-52}\right):\\
\;\;\;\;x \cdot y\\
\mathbf{else}:\\
\;\;\;\;z\\
\end{array}
\end{array}
if x < -2.3e8 or 1.4500000000000001e-52 < x Initial program 96.1%
+-commutative96.1%
remove-double-neg96.1%
distribute-rgt-neg-out96.1%
neg-sub096.1%
neg-sub096.1%
*-commutative96.1%
distribute-lft-neg-in96.1%
remove-double-neg96.1%
distribute-rgt-out--96.1%
*-lft-identity96.1%
associate-+l-96.1%
distribute-lft-out--100.0%
Simplified100.0%
Taylor expanded in z around 0 54.5%
if -2.3e8 < x < 1.4500000000000001e-52Initial program 100.0%
+-commutative100.0%
remove-double-neg100.0%
distribute-rgt-neg-out100.0%
neg-sub0100.0%
neg-sub0100.0%
*-commutative100.0%
distribute-lft-neg-in100.0%
remove-double-neg100.0%
distribute-rgt-out--100.0%
*-lft-identity100.0%
associate-+l-100.0%
distribute-lft-out--100.0%
Simplified100.0%
Taylor expanded in z around inf 77.8%
Taylor expanded in x around 0 75.8%
Final simplification63.1%
(FPCore (x y z) :precision binary64 z)
double code(double x, double y, double z) {
return z;
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
code = z
end function
public static double code(double x, double y, double z) {
return z;
}
def code(x, y, z): return z
function code(x, y, z) return z end
function tmp = code(x, y, z) tmp = z; end
code[x_, y_, z_] := z
\begin{array}{l}
\\
z
\end{array}
Initial program 97.7%
+-commutative97.7%
remove-double-neg97.7%
distribute-rgt-neg-out97.7%
neg-sub097.7%
neg-sub097.7%
*-commutative97.7%
distribute-lft-neg-in97.7%
remove-double-neg97.7%
distribute-rgt-out--97.7%
*-lft-identity97.7%
associate-+l-97.7%
distribute-lft-out--100.0%
Simplified100.0%
Taylor expanded in z around inf 60.8%
Taylor expanded in x around 0 33.2%
herbie shell --seed 2024144
(FPCore (x y z)
:name "Diagrams.Backend.Rasterific:$crender from diagrams-rasterific-1.3.1.3"
:precision binary64
(+ (* x y) (* (- 1.0 x) z)))