
(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 (* x (- z))))
(if (<= x -3e+220)
(* x y)
(if (<= x -7.2e+69)
t_0
(if (<= x -4.1e-35)
(* x y)
(if (<= x 2.9e-56)
z
(if (or (<= x 20000000000.0)
(and (not (<= x 3e+44)) (<= x 1.95e+248)))
(* x y)
t_0)))))))
double code(double x, double y, double z) {
double t_0 = x * -z;
double tmp;
if (x <= -3e+220) {
tmp = x * y;
} else if (x <= -7.2e+69) {
tmp = t_0;
} else if (x <= -4.1e-35) {
tmp = x * y;
} else if (x <= 2.9e-56) {
tmp = z;
} else if ((x <= 20000000000.0) || (!(x <= 3e+44) && (x <= 1.95e+248))) {
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 = x * -z
if (x <= (-3d+220)) then
tmp = x * y
else if (x <= (-7.2d+69)) then
tmp = t_0
else if (x <= (-4.1d-35)) then
tmp = x * y
else if (x <= 2.9d-56) then
tmp = z
else if ((x <= 20000000000.0d0) .or. (.not. (x <= 3d+44)) .and. (x <= 1.95d+248)) 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 = x * -z;
double tmp;
if (x <= -3e+220) {
tmp = x * y;
} else if (x <= -7.2e+69) {
tmp = t_0;
} else if (x <= -4.1e-35) {
tmp = x * y;
} else if (x <= 2.9e-56) {
tmp = z;
} else if ((x <= 20000000000.0) || (!(x <= 3e+44) && (x <= 1.95e+248))) {
tmp = x * y;
} else {
tmp = t_0;
}
return tmp;
}
def code(x, y, z): t_0 = x * -z tmp = 0 if x <= -3e+220: tmp = x * y elif x <= -7.2e+69: tmp = t_0 elif x <= -4.1e-35: tmp = x * y elif x <= 2.9e-56: tmp = z elif (x <= 20000000000.0) or (not (x <= 3e+44) and (x <= 1.95e+248)): tmp = x * y else: tmp = t_0 return tmp
function code(x, y, z) t_0 = Float64(x * Float64(-z)) tmp = 0.0 if (x <= -3e+220) tmp = Float64(x * y); elseif (x <= -7.2e+69) tmp = t_0; elseif (x <= -4.1e-35) tmp = Float64(x * y); elseif (x <= 2.9e-56) tmp = z; elseif ((x <= 20000000000.0) || (!(x <= 3e+44) && (x <= 1.95e+248))) tmp = Float64(x * y); else tmp = t_0; end return tmp end
function tmp_2 = code(x, y, z) t_0 = x * -z; tmp = 0.0; if (x <= -3e+220) tmp = x * y; elseif (x <= -7.2e+69) tmp = t_0; elseif (x <= -4.1e-35) tmp = x * y; elseif (x <= 2.9e-56) tmp = z; elseif ((x <= 20000000000.0) || (~((x <= 3e+44)) && (x <= 1.95e+248))) tmp = x * y; else tmp = t_0; end tmp_2 = tmp; end
code[x_, y_, z_] := Block[{t$95$0 = N[(x * (-z)), $MachinePrecision]}, If[LessEqual[x, -3e+220], N[(x * y), $MachinePrecision], If[LessEqual[x, -7.2e+69], t$95$0, If[LessEqual[x, -4.1e-35], N[(x * y), $MachinePrecision], If[LessEqual[x, 2.9e-56], z, If[Or[LessEqual[x, 20000000000.0], And[N[Not[LessEqual[x, 3e+44]], $MachinePrecision], LessEqual[x, 1.95e+248]]], N[(x * y), $MachinePrecision], t$95$0]]]]]]
\begin{array}{l}
\\
\begin{array}{l}
t_0 := x \cdot \left(-z\right)\\
\mathbf{if}\;x \leq -3 \cdot 10^{+220}:\\
\;\;\;\;x \cdot y\\
\mathbf{elif}\;x \leq -7.2 \cdot 10^{+69}:\\
\;\;\;\;t_0\\
\mathbf{elif}\;x \leq -4.1 \cdot 10^{-35}:\\
\;\;\;\;x \cdot y\\
\mathbf{elif}\;x \leq 2.9 \cdot 10^{-56}:\\
\;\;\;\;z\\
\mathbf{elif}\;x \leq 20000000000 \lor \neg \left(x \leq 3 \cdot 10^{+44}\right) \land x \leq 1.95 \cdot 10^{+248}:\\
\;\;\;\;x \cdot y\\
\mathbf{else}:\\
\;\;\;\;t_0\\
\end{array}
\end{array}
(FPCore (x y z) :precision binary64 (if (or (<= x -1.12e-55) (not (<= x 7.4e-53))) (* x (- y z)) z))
double code(double x, double y, double z) {
double tmp;
if ((x <= -1.12e-55) || !(x <= 7.4e-53)) {
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 <= (-1.12d-55)) .or. (.not. (x <= 7.4d-53))) 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 <= -1.12e-55) || !(x <= 7.4e-53)) {
tmp = x * (y - z);
} else {
tmp = z;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (x <= -1.12e-55) or not (x <= 7.4e-53): tmp = x * (y - z) else: tmp = z return tmp
function code(x, y, z) tmp = 0.0 if ((x <= -1.12e-55) || !(x <= 7.4e-53)) 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 <= -1.12e-55) || ~((x <= 7.4e-53))) tmp = x * (y - z); else tmp = z; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[x, -1.12e-55], N[Not[LessEqual[x, 7.4e-53]], $MachinePrecision]], N[(x * N[(y - z), $MachinePrecision]), $MachinePrecision], z]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -1.12 \cdot 10^{-55} \lor \neg \left(x \leq 7.4 \cdot 10^{-53}\right):\\
\;\;\;\;x \cdot \left(y - z\right)\\
\mathbf{else}:\\
\;\;\;\;z\\
\end{array}
\end{array}
(FPCore (x y z) :precision binary64 (if (or (<= x -1.5e-57) (not (<= x 4.5e-52))) (* x (- y z)) (* z (- 1.0 x))))
double code(double x, double y, double z) {
double tmp;
if ((x <= -1.5e-57) || !(x <= 4.5e-52)) {
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 <= (-1.5d-57)) .or. (.not. (x <= 4.5d-52))) 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 <= -1.5e-57) || !(x <= 4.5e-52)) {
tmp = x * (y - z);
} else {
tmp = z * (1.0 - x);
}
return tmp;
}
def code(x, y, z): tmp = 0 if (x <= -1.5e-57) or not (x <= 4.5e-52): tmp = x * (y - z) else: tmp = z * (1.0 - x) return tmp
function code(x, y, z) tmp = 0.0 if ((x <= -1.5e-57) || !(x <= 4.5e-52)) 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 <= -1.5e-57) || ~((x <= 4.5e-52))) tmp = x * (y - z); else tmp = z * (1.0 - x); end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[x, -1.5e-57], N[Not[LessEqual[x, 4.5e-52]], $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 -1.5 \cdot 10^{-57} \lor \neg \left(x \leq 4.5 \cdot 10^{-52}\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 -1.0) (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}
(FPCore (x y z) :precision binary64 (if (or (<= x -1.66e-34) (not (<= x 3e-52))) (* x y) z))
double code(double x, double y, double z) {
double tmp;
if ((x <= -1.66e-34) || !(x <= 3e-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 <= (-1.66d-34)) .or. (.not. (x <= 3d-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 <= -1.66e-34) || !(x <= 3e-52)) {
tmp = x * y;
} else {
tmp = z;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (x <= -1.66e-34) or not (x <= 3e-52): tmp = x * y else: tmp = z return tmp
function code(x, y, z) tmp = 0.0 if ((x <= -1.66e-34) || !(x <= 3e-52)) tmp = Float64(x * y); else tmp = z; end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((x <= -1.66e-34) || ~((x <= 3e-52))) tmp = x * y; else tmp = z; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[x, -1.66e-34], N[Not[LessEqual[x, 3e-52]], $MachinePrecision]], N[(x * y), $MachinePrecision], z]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -1.66 \cdot 10^{-34} \lor \neg \left(x \leq 3 \cdot 10^{-52}\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]), $MachinePrecision]
\begin{array}{l}
\\
z + x \cdot \left(y - z\right)
\end{array}
(FPCore (x y z) :precision binary64 z)
double code(double x, double y, double z) {
return z;
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
code = z
end function
public static double code(double x, double y, double z) {
return z;
}
def code(x, y, z): return z
function code(x, y, z) return z end
function tmp = code(x, y, z) tmp = z; end
code[x_, y_, z_] := z
\begin{array}{l}
\\
z
\end{array}
herbie shell --seed 2024003
(FPCore (x y z)
:name "Diagrams.Backend.Rasterific:$crender from diagrams-rasterific-1.3.1.3"
:precision binary64
(+ (* x y) (* (- 1.0 x) z)))