
(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 8 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}
(FPCore (x y z)
:precision binary64
(let* ((t_0 (* z (- x))))
(if (<= x -1.52e+214)
t_0
(if (<= x -3.5e-8)
(* x y)
(if (<= x 1.0) z (if (<= x 2.4e+157) t_0 (* x y)))))))
double code(double x, double y, double z) {
double t_0 = z * -x;
double tmp;
if (x <= -1.52e+214) {
tmp = t_0;
} else if (x <= -3.5e-8) {
tmp = x * y;
} else if (x <= 1.0) {
tmp = z;
} else if (x <= 2.4e+157) {
tmp = t_0;
} 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) :: t_0
real(8) :: tmp
t_0 = z * -x
if (x <= (-1.52d+214)) then
tmp = t_0
else if (x <= (-3.5d-8)) then
tmp = x * y
else if (x <= 1.0d0) then
tmp = z
else if (x <= 2.4d+157) then
tmp = t_0
else
tmp = x * y
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 <= -1.52e+214) {
tmp = t_0;
} else if (x <= -3.5e-8) {
tmp = x * y;
} else if (x <= 1.0) {
tmp = z;
} else if (x <= 2.4e+157) {
tmp = t_0;
} else {
tmp = x * y;
}
return tmp;
}
def code(x, y, z): t_0 = z * -x tmp = 0 if x <= -1.52e+214: tmp = t_0 elif x <= -3.5e-8: tmp = x * y elif x <= 1.0: tmp = z elif x <= 2.4e+157: tmp = t_0 else: tmp = x * y return tmp
function code(x, y, z) t_0 = Float64(z * Float64(-x)) tmp = 0.0 if (x <= -1.52e+214) tmp = t_0; elseif (x <= -3.5e-8) tmp = Float64(x * y); elseif (x <= 1.0) tmp = z; elseif (x <= 2.4e+157) tmp = t_0; else tmp = Float64(x * y); end return tmp end
function tmp_2 = code(x, y, z) t_0 = z * -x; tmp = 0.0; if (x <= -1.52e+214) tmp = t_0; elseif (x <= -3.5e-8) tmp = x * y; elseif (x <= 1.0) tmp = z; elseif (x <= 2.4e+157) tmp = t_0; else tmp = x * y; end tmp_2 = tmp; end
code[x_, y_, z_] := Block[{t$95$0 = N[(z * (-x)), $MachinePrecision]}, If[LessEqual[x, -1.52e+214], t$95$0, If[LessEqual[x, -3.5e-8], N[(x * y), $MachinePrecision], If[LessEqual[x, 1.0], z, If[LessEqual[x, 2.4e+157], t$95$0, N[(x * y), $MachinePrecision]]]]]]
\begin{array}{l}
\\
\begin{array}{l}
t_0 := z \cdot \left(-x\right)\\
\mathbf{if}\;x \leq -1.52 \cdot 10^{+214}:\\
\;\;\;\;t_0\\
\mathbf{elif}\;x \leq -3.5 \cdot 10^{-8}:\\
\;\;\;\;x \cdot y\\
\mathbf{elif}\;x \leq 1:\\
\;\;\;\;z\\
\mathbf{elif}\;x \leq 2.4 \cdot 10^{+157}:\\
\;\;\;\;t_0\\
\mathbf{else}:\\
\;\;\;\;x \cdot y\\
\end{array}
\end{array}
(FPCore (x y z) :precision binary64 (if (or (<= x -4e-8) (not (<= x 1.06e-7))) (* x (- y z)) z))
double code(double x, double y, double z) {
double tmp;
if ((x <= -4e-8) || !(x <= 1.06e-7)) {
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 <= (-4d-8)) .or. (.not. (x <= 1.06d-7))) 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 <= -4e-8) || !(x <= 1.06e-7)) {
tmp = x * (y - z);
} else {
tmp = z;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (x <= -4e-8) or not (x <= 1.06e-7): tmp = x * (y - z) else: tmp = z return tmp
function code(x, y, z) tmp = 0.0 if ((x <= -4e-8) || !(x <= 1.06e-7)) 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 <= -4e-8) || ~((x <= 1.06e-7))) tmp = x * (y - z); else tmp = z; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[x, -4e-8], N[Not[LessEqual[x, 1.06e-7]], $MachinePrecision]], N[(x * N[(y - z), $MachinePrecision]), $MachinePrecision], z]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -4 \cdot 10^{-8} \lor \neg \left(x \leq 1.06 \cdot 10^{-7}\right):\\
\;\;\;\;x \cdot \left(y - z\right)\\
\mathbf{else}:\\
\;\;\;\;z\\
\end{array}
\end{array}
(FPCore (x y z) :precision binary64 (if (or (<= x -3.8e-8) (not (<= x 14000000.0))) (* x (- y z)) (* z (- 1.0 x))))
double code(double x, double y, double z) {
double tmp;
if ((x <= -3.8e-8) || !(x <= 14000000.0)) {
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 <= (-3.8d-8)) .or. (.not. (x <= 14000000.0d0))) 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 <= -3.8e-8) || !(x <= 14000000.0)) {
tmp = x * (y - z);
} else {
tmp = z * (1.0 - x);
}
return tmp;
}
def code(x, y, z): tmp = 0 if (x <= -3.8e-8) or not (x <= 14000000.0): tmp = x * (y - z) else: tmp = z * (1.0 - x) return tmp
function code(x, y, z) tmp = 0.0 if ((x <= -3.8e-8) || !(x <= 14000000.0)) 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 <= -3.8e-8) || ~((x <= 14000000.0))) tmp = x * (y - z); else tmp = z * (1.0 - x); end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[x, -3.8e-8], N[Not[LessEqual[x, 14000000.0]], $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 -3.8 \cdot 10^{-8} \lor \neg \left(x \leq 14000000\right):\\
\;\;\;\;x \cdot \left(y - z\right)\\
\mathbf{else}:\\
\;\;\;\;z \cdot \left(1 - x\right)\\
\end{array}
\end{array}
(FPCore (x y z) :precision binary64 (if (or (<= x -1.2e+23) (not (<= x 1.0))) (* x (- y z)) (+ z (* x y))))
double code(double x, double y, double z) {
double tmp;
if ((x <= -1.2e+23) || !(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 <= (-1.2d+23)) .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 <= -1.2e+23) || !(x <= 1.0)) {
tmp = x * (y - z);
} else {
tmp = z + (x * y);
}
return tmp;
}
def code(x, y, z): tmp = 0 if (x <= -1.2e+23) 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 <= -1.2e+23) || !(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 <= -1.2e+23) || ~((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, -1.2e+23], 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 -1.2 \cdot 10^{+23} \lor \neg \left(x \leq 1\right):\\
\;\;\;\;x \cdot \left(y - z\right)\\
\mathbf{else}:\\
\;\;\;\;z + x \cdot y\\
\end{array}
\end{array}
(FPCore (x y z) :precision binary64 (if (or (<= x -5.2e-8) (not (<= x 17500.0))) (* x y) z))
double code(double x, double y, double z) {
double tmp;
if ((x <= -5.2e-8) || !(x <= 17500.0)) {
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 <= (-5.2d-8)) .or. (.not. (x <= 17500.0d0))) 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 <= -5.2e-8) || !(x <= 17500.0)) {
tmp = x * y;
} else {
tmp = z;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (x <= -5.2e-8) or not (x <= 17500.0): tmp = x * y else: tmp = z return tmp
function code(x, y, z) tmp = 0.0 if ((x <= -5.2e-8) || !(x <= 17500.0)) tmp = Float64(x * y); else tmp = z; end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((x <= -5.2e-8) || ~((x <= 17500.0))) tmp = x * y; else tmp = z; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[x, -5.2e-8], N[Not[LessEqual[x, 17500.0]], $MachinePrecision]], N[(x * y), $MachinePrecision], z]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -5.2 \cdot 10^{-8} \lor \neg \left(x \leq 17500\right):\\
\;\;\;\;x \cdot y\\
\mathbf{else}:\\
\;\;\;\;z\\
\end{array}
\end{array}
(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]), $MachinePrecision]
\begin{array}{l}
\\
z + x \cdot \left(y - z\right)
\end{array}
(FPCore (x y z) :precision binary64 z)
double code(double x, double y, double z) {
return z;
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
code = z
end function
public static double code(double x, double y, double z) {
return z;
}
def code(x, y, z): return z
function code(x, y, z) return z end
function tmp = code(x, y, z) tmp = z; end
code[x_, y_, z_] := z
\begin{array}{l}
\\
z
\end{array}
herbie shell --seed 2023343
(FPCore (x y z)
:name "Diagrams.Backend.Rasterific:$crender from diagrams-rasterific-1.3.1.3"
:precision binary64
(+ (* x y) (* (- 1.0 x) z)))