
(FPCore (x y z) :precision binary64 (+ (* x y) (* z (- 1.0 y))))
double code(double x, double y, double z) {
return (x * y) + (z * (1.0 - y));
}
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) + (z * (1.0d0 - y))
end function
public static double code(double x, double y, double z) {
return (x * y) + (z * (1.0 - y));
}
def code(x, y, z): return (x * y) + (z * (1.0 - y))
function code(x, y, z) return Float64(Float64(x * y) + Float64(z * Float64(1.0 - y))) end
function tmp = code(x, y, z) tmp = (x * y) + (z * (1.0 - y)); end
code[x_, y_, z_] := N[(N[(x * y), $MachinePrecision] + N[(z * N[(1.0 - y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
x \cdot y + z \cdot \left(1 - y\right)
\end{array}
Sampling outcomes in binary64 precision:
Herbie found 6 alternatives:
| Alternative | Accuracy | Speedup |
|---|
(FPCore (x y z) :precision binary64 (+ (* x y) (* z (- 1.0 y))))
double code(double x, double y, double z) {
return (x * y) + (z * (1.0 - y));
}
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) + (z * (1.0d0 - y))
end function
public static double code(double x, double y, double z) {
return (x * y) + (z * (1.0 - y));
}
def code(x, y, z): return (x * y) + (z * (1.0 - y))
function code(x, y, z) return Float64(Float64(x * y) + Float64(z * Float64(1.0 - y))) end
function tmp = code(x, y, z) tmp = (x * y) + (z * (1.0 - y)); end
code[x_, y_, z_] := N[(N[(x * y), $MachinePrecision] + N[(z * N[(1.0 - y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
x \cdot y + z \cdot \left(1 - y\right)
\end{array}
(FPCore (x y z) :precision binary64 (fma (- x z) y z))
double code(double x, double y, double z) {
return fma((x - z), y, z);
}
function code(x, y, z) return fma(Float64(x - z), y, z) end
code[x_, y_, z_] := N[(N[(x - z), $MachinePrecision] * y + z), $MachinePrecision]
\begin{array}{l}
\\
\mathsf{fma}\left(x - z, y, z\right)
\end{array}
Initial program 98.0%
Taylor expanded in z around 0
+-commutativeN/A
*-commutativeN/A
*-commutativeN/A
distribute-rgt-out--N/A
*-lft-identityN/A
associate-+l-N/A
*-commutativeN/A
distribute-lft-out--N/A
unsub-negN/A
mul-1-negN/A
sub-negN/A
mul-1-negN/A
+-commutativeN/A
mul-1-negN/A
*-commutativeN/A
distribute-lft-neg-inN/A
lower-fma.f64N/A
+-commutativeN/A
distribute-neg-inN/A
mul-1-negN/A
remove-double-negN/A
unsub-negN/A
lower--.f64100.0
Applied rewrites100.0%
(FPCore (x y z)
:precision binary64
(let* ((t_0 (* (- z) y)))
(if (<= y -2e+270)
t_0
(if (<= y -1.9e-145)
(* y x)
(if (<= y 1e-14) (* 1.0 z) (if (<= y 5e+82) (* y x) t_0))))))
double code(double x, double y, double z) {
double t_0 = -z * y;
double tmp;
if (y <= -2e+270) {
tmp = t_0;
} else if (y <= -1.9e-145) {
tmp = y * x;
} else if (y <= 1e-14) {
tmp = 1.0 * z;
} else if (y <= 5e+82) {
tmp = y * x;
} 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 * y
if (y <= (-2d+270)) then
tmp = t_0
else if (y <= (-1.9d-145)) then
tmp = y * x
else if (y <= 1d-14) then
tmp = 1.0d0 * z
else if (y <= 5d+82) then
tmp = y * x
else
tmp = t_0
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double t_0 = -z * y;
double tmp;
if (y <= -2e+270) {
tmp = t_0;
} else if (y <= -1.9e-145) {
tmp = y * x;
} else if (y <= 1e-14) {
tmp = 1.0 * z;
} else if (y <= 5e+82) {
tmp = y * x;
} else {
tmp = t_0;
}
return tmp;
}
def code(x, y, z): t_0 = -z * y tmp = 0 if y <= -2e+270: tmp = t_0 elif y <= -1.9e-145: tmp = y * x elif y <= 1e-14: tmp = 1.0 * z elif y <= 5e+82: tmp = y * x else: tmp = t_0 return tmp
function code(x, y, z) t_0 = Float64(Float64(-z) * y) tmp = 0.0 if (y <= -2e+270) tmp = t_0; elseif (y <= -1.9e-145) tmp = Float64(y * x); elseif (y <= 1e-14) tmp = Float64(1.0 * z); elseif (y <= 5e+82) tmp = Float64(y * x); else tmp = t_0; end return tmp end
function tmp_2 = code(x, y, z) t_0 = -z * y; tmp = 0.0; if (y <= -2e+270) tmp = t_0; elseif (y <= -1.9e-145) tmp = y * x; elseif (y <= 1e-14) tmp = 1.0 * z; elseif (y <= 5e+82) tmp = y * x; else tmp = t_0; end tmp_2 = tmp; end
code[x_, y_, z_] := Block[{t$95$0 = N[((-z) * y), $MachinePrecision]}, If[LessEqual[y, -2e+270], t$95$0, If[LessEqual[y, -1.9e-145], N[(y * x), $MachinePrecision], If[LessEqual[y, 1e-14], N[(1.0 * z), $MachinePrecision], If[LessEqual[y, 5e+82], N[(y * x), $MachinePrecision], t$95$0]]]]]
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left(-z\right) \cdot y\\
\mathbf{if}\;y \leq -2 \cdot 10^{+270}:\\
\;\;\;\;t\_0\\
\mathbf{elif}\;y \leq -1.9 \cdot 10^{-145}:\\
\;\;\;\;y \cdot x\\
\mathbf{elif}\;y \leq 10^{-14}:\\
\;\;\;\;1 \cdot z\\
\mathbf{elif}\;y \leq 5 \cdot 10^{+82}:\\
\;\;\;\;y \cdot x\\
\mathbf{else}:\\
\;\;\;\;t\_0\\
\end{array}
\end{array}
if y < -2.0000000000000001e270 or 5.00000000000000015e82 < y Initial program 92.4%
Taylor expanded in y around inf
*-commutativeN/A
+-commutativeN/A
remove-double-negN/A
mul-1-negN/A
mul-1-negN/A
distribute-neg-inN/A
lower-*.f64N/A
+-commutativeN/A
distribute-neg-inN/A
mul-1-negN/A
remove-double-negN/A
unsub-negN/A
lower--.f6499.9
Applied rewrites99.9%
Taylor expanded in z around inf
Applied rewrites64.5%
if -2.0000000000000001e270 < y < -1.9000000000000001e-145 or 9.99999999999999999e-15 < y < 5.00000000000000015e82Initial program 99.0%
Taylor expanded in z around 0
*-commutativeN/A
lower-*.f6458.7
Applied rewrites58.7%
if -1.9000000000000001e-145 < y < 9.99999999999999999e-15Initial program 100.0%
Taylor expanded in z around inf
*-commutativeN/A
lower-*.f64N/A
lower--.f6476.4
Applied rewrites76.4%
Taylor expanded in y around 0
Applied rewrites76.4%
(FPCore (x y z) :precision binary64 (let* ((t_0 (* (- x z) y))) (if (<= y -1.9e-145) t_0 (if (<= y 1.6e-14) (* (- 1.0 y) z) t_0))))
double code(double x, double y, double z) {
double t_0 = (x - z) * y;
double tmp;
if (y <= -1.9e-145) {
tmp = t_0;
} else if (y <= 1.6e-14) {
tmp = (1.0 - y) * z;
} 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) * y
if (y <= (-1.9d-145)) then
tmp = t_0
else if (y <= 1.6d-14) then
tmp = (1.0d0 - y) * z
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) * y;
double tmp;
if (y <= -1.9e-145) {
tmp = t_0;
} else if (y <= 1.6e-14) {
tmp = (1.0 - y) * z;
} else {
tmp = t_0;
}
return tmp;
}
def code(x, y, z): t_0 = (x - z) * y tmp = 0 if y <= -1.9e-145: tmp = t_0 elif y <= 1.6e-14: tmp = (1.0 - y) * z else: tmp = t_0 return tmp
function code(x, y, z) t_0 = Float64(Float64(x - z) * y) tmp = 0.0 if (y <= -1.9e-145) tmp = t_0; elseif (y <= 1.6e-14) tmp = Float64(Float64(1.0 - y) * z); else tmp = t_0; end return tmp end
function tmp_2 = code(x, y, z) t_0 = (x - z) * y; tmp = 0.0; if (y <= -1.9e-145) tmp = t_0; elseif (y <= 1.6e-14) tmp = (1.0 - y) * z; else tmp = t_0; end tmp_2 = tmp; end
code[x_, y_, z_] := Block[{t$95$0 = N[(N[(x - z), $MachinePrecision] * y), $MachinePrecision]}, If[LessEqual[y, -1.9e-145], t$95$0, If[LessEqual[y, 1.6e-14], N[(N[(1.0 - y), $MachinePrecision] * z), $MachinePrecision], t$95$0]]]
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left(x - z\right) \cdot y\\
\mathbf{if}\;y \leq -1.9 \cdot 10^{-145}:\\
\;\;\;\;t\_0\\
\mathbf{elif}\;y \leq 1.6 \cdot 10^{-14}:\\
\;\;\;\;\left(1 - y\right) \cdot z\\
\mathbf{else}:\\
\;\;\;\;t\_0\\
\end{array}
\end{array}
if y < -1.9000000000000001e-145 or 1.6000000000000001e-14 < y Initial program 96.8%
Taylor expanded in y around inf
*-commutativeN/A
+-commutativeN/A
remove-double-negN/A
mul-1-negN/A
mul-1-negN/A
distribute-neg-inN/A
lower-*.f64N/A
+-commutativeN/A
distribute-neg-inN/A
mul-1-negN/A
remove-double-negN/A
unsub-negN/A
lower--.f6488.6
Applied rewrites88.6%
if -1.9000000000000001e-145 < y < 1.6000000000000001e-14Initial program 100.0%
Taylor expanded in z around inf
*-commutativeN/A
lower-*.f64N/A
lower--.f6476.4
Applied rewrites76.4%
(FPCore (x y z) :precision binary64 (if (<= x -8.2e+112) (* y x) (if (<= x 1.32e+79) (* (- 1.0 y) z) (* y x))))
double code(double x, double y, double z) {
double tmp;
if (x <= -8.2e+112) {
tmp = y * x;
} else if (x <= 1.32e+79) {
tmp = (1.0 - y) * z;
} else {
tmp = y * 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 <= (-8.2d+112)) then
tmp = y * x
else if (x <= 1.32d+79) then
tmp = (1.0d0 - y) * z
else
tmp = y * x
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if (x <= -8.2e+112) {
tmp = y * x;
} else if (x <= 1.32e+79) {
tmp = (1.0 - y) * z;
} else {
tmp = y * x;
}
return tmp;
}
def code(x, y, z): tmp = 0 if x <= -8.2e+112: tmp = y * x elif x <= 1.32e+79: tmp = (1.0 - y) * z else: tmp = y * x return tmp
function code(x, y, z) tmp = 0.0 if (x <= -8.2e+112) tmp = Float64(y * x); elseif (x <= 1.32e+79) tmp = Float64(Float64(1.0 - y) * z); else tmp = Float64(y * x); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if (x <= -8.2e+112) tmp = y * x; elseif (x <= 1.32e+79) tmp = (1.0 - y) * z; else tmp = y * x; end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[x, -8.2e+112], N[(y * x), $MachinePrecision], If[LessEqual[x, 1.32e+79], N[(N[(1.0 - y), $MachinePrecision] * z), $MachinePrecision], N[(y * x), $MachinePrecision]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -8.2 \cdot 10^{+112}:\\
\;\;\;\;y \cdot x\\
\mathbf{elif}\;x \leq 1.32 \cdot 10^{+79}:\\
\;\;\;\;\left(1 - y\right) \cdot z\\
\mathbf{else}:\\
\;\;\;\;y \cdot x\\
\end{array}
\end{array}
if x < -8.19999999999999951e112 or 1.32e79 < x Initial program 94.7%
Taylor expanded in z around 0
*-commutativeN/A
lower-*.f6477.8
Applied rewrites77.8%
if -8.19999999999999951e112 < x < 1.32e79Initial program 100.0%
Taylor expanded in z around inf
*-commutativeN/A
lower-*.f64N/A
lower--.f6480.6
Applied rewrites80.6%
(FPCore (x y z) :precision binary64 (if (<= y -1.9e-145) (* y x) (if (<= y 1e-14) (* 1.0 z) (* y x))))
double code(double x, double y, double z) {
double tmp;
if (y <= -1.9e-145) {
tmp = y * x;
} else if (y <= 1e-14) {
tmp = 1.0 * z;
} else {
tmp = y * 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 (y <= (-1.9d-145)) then
tmp = y * x
else if (y <= 1d-14) then
tmp = 1.0d0 * z
else
tmp = y * x
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if (y <= -1.9e-145) {
tmp = y * x;
} else if (y <= 1e-14) {
tmp = 1.0 * z;
} else {
tmp = y * x;
}
return tmp;
}
def code(x, y, z): tmp = 0 if y <= -1.9e-145: tmp = y * x elif y <= 1e-14: tmp = 1.0 * z else: tmp = y * x return tmp
function code(x, y, z) tmp = 0.0 if (y <= -1.9e-145) tmp = Float64(y * x); elseif (y <= 1e-14) tmp = Float64(1.0 * z); else tmp = Float64(y * x); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if (y <= -1.9e-145) tmp = y * x; elseif (y <= 1e-14) tmp = 1.0 * z; else tmp = y * x; end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[y, -1.9e-145], N[(y * x), $MachinePrecision], If[LessEqual[y, 1e-14], N[(1.0 * z), $MachinePrecision], N[(y * x), $MachinePrecision]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \leq -1.9 \cdot 10^{-145}:\\
\;\;\;\;y \cdot x\\
\mathbf{elif}\;y \leq 10^{-14}:\\
\;\;\;\;1 \cdot z\\
\mathbf{else}:\\
\;\;\;\;y \cdot x\\
\end{array}
\end{array}
if y < -1.9000000000000001e-145 or 9.99999999999999999e-15 < y Initial program 96.8%
Taylor expanded in z around 0
*-commutativeN/A
lower-*.f6451.9
Applied rewrites51.9%
if -1.9000000000000001e-145 < y < 9.99999999999999999e-15Initial program 100.0%
Taylor expanded in z around inf
*-commutativeN/A
lower-*.f64N/A
lower--.f6476.4
Applied rewrites76.4%
Taylor expanded in y around 0
Applied rewrites76.4%
(FPCore (x y z) :precision binary64 (* y x))
double code(double x, double y, double z) {
return y * x;
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
code = y * x
end function
public static double code(double x, double y, double z) {
return y * x;
}
def code(x, y, z): return y * x
function code(x, y, z) return Float64(y * x) end
function tmp = code(x, y, z) tmp = y * x; end
code[x_, y_, z_] := N[(y * x), $MachinePrecision]
\begin{array}{l}
\\
y \cdot x
\end{array}
Initial program 98.0%
Taylor expanded in z around 0
*-commutativeN/A
lower-*.f6442.0
Applied rewrites42.0%
(FPCore (x y z) :precision binary64 (- z (* (- z x) y)))
double code(double x, double y, double z) {
return z - ((z - 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 - ((z - x) * y)
end function
public static double code(double x, double y, double z) {
return z - ((z - x) * y);
}
def code(x, y, z): return z - ((z - x) * y)
function code(x, y, z) return Float64(z - Float64(Float64(z - x) * y)) end
function tmp = code(x, y, z) tmp = z - ((z - x) * y); end
code[x_, y_, z_] := N[(z - N[(N[(z - x), $MachinePrecision] * y), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
z - \left(z - x\right) \cdot y
\end{array}
herbie shell --seed 2024240
(FPCore (x y z)
:name "Diagrams.TwoD.Segment:bezierClip from diagrams-lib-1.3.0.3"
:precision binary64
:alt
(! :herbie-platform default (- z (* (- z x) y)))
(+ (* x y) (* z (- 1.0 y))))