
(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 x around 0
+-commutativeN/A
distribute-rgt-out--N/A
unsub-negN/A
*-lft-identityN/A
mul-1-negN/A
+-commutativeN/A
+-commutativeN/A
mul-1-negN/A
unsub-negN/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
Applied rewrites100.0%
(FPCore (x y z)
:precision binary64
(if (<= y -8e+170)
(* y x)
(if (<= y -1.3e+94)
(* (- z) y)
(if (<= y -5e-14) (* y x) (if (<= y 5.2e-43) (* 1.0 z) (* y x))))))
double code(double x, double y, double z) {
double tmp;
if (y <= -8e+170) {
tmp = y * x;
} else if (y <= -1.3e+94) {
tmp = -z * y;
} else if (y <= -5e-14) {
tmp = y * x;
} else if (y <= 5.2e-43) {
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 <= (-8d+170)) then
tmp = y * x
else if (y <= (-1.3d+94)) then
tmp = -z * y
else if (y <= (-5d-14)) then
tmp = y * x
else if (y <= 5.2d-43) 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 <= -8e+170) {
tmp = y * x;
} else if (y <= -1.3e+94) {
tmp = -z * y;
} else if (y <= -5e-14) {
tmp = y * x;
} else if (y <= 5.2e-43) {
tmp = 1.0 * z;
} else {
tmp = y * x;
}
return tmp;
}
def code(x, y, z): tmp = 0 if y <= -8e+170: tmp = y * x elif y <= -1.3e+94: tmp = -z * y elif y <= -5e-14: tmp = y * x elif y <= 5.2e-43: tmp = 1.0 * z else: tmp = y * x return tmp
function code(x, y, z) tmp = 0.0 if (y <= -8e+170) tmp = Float64(y * x); elseif (y <= -1.3e+94) tmp = Float64(Float64(-z) * y); elseif (y <= -5e-14) tmp = Float64(y * x); elseif (y <= 5.2e-43) 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 <= -8e+170) tmp = y * x; elseif (y <= -1.3e+94) tmp = -z * y; elseif (y <= -5e-14) tmp = y * x; elseif (y <= 5.2e-43) tmp = 1.0 * z; else tmp = y * x; end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[y, -8e+170], N[(y * x), $MachinePrecision], If[LessEqual[y, -1.3e+94], N[((-z) * y), $MachinePrecision], If[LessEqual[y, -5e-14], N[(y * x), $MachinePrecision], If[LessEqual[y, 5.2e-43], N[(1.0 * z), $MachinePrecision], N[(y * x), $MachinePrecision]]]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \leq -8 \cdot 10^{+170}:\\
\;\;\;\;y \cdot x\\
\mathbf{elif}\;y \leq -1.3 \cdot 10^{+94}:\\
\;\;\;\;\left(-z\right) \cdot y\\
\mathbf{elif}\;y \leq -5 \cdot 10^{-14}:\\
\;\;\;\;y \cdot x\\
\mathbf{elif}\;y \leq 5.2 \cdot 10^{-43}:\\
\;\;\;\;1 \cdot z\\
\mathbf{else}:\\
\;\;\;\;y \cdot x\\
\end{array}
\end{array}
if y < -8.00000000000000028e170 or -1.3e94 < y < -5.0000000000000002e-14 or 5.2e-43 < y Initial program 95.6%
Taylor expanded in x around 0
*-commutativeN/A
lower-*.f64N/A
lower--.f6439.6
Applied rewrites39.6%
Taylor expanded in x around inf
*-commutativeN/A
lower-*.f6465.3
Applied rewrites65.3%
if -8.00000000000000028e170 < y < -1.3e94Initial program 100.0%
Taylor expanded in y around inf
*-commutativeN/A
remove-double-negN/A
mul-1-negN/A
mul-1-negN/A
distribute-neg-inN/A
+-commutativeN/A
lower-*.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%
Taylor expanded in x around 0
Applied rewrites77.0%
if -5.0000000000000002e-14 < y < 5.2e-43Initial program 100.0%
Taylor expanded in x around 0
*-commutativeN/A
lower-*.f64N/A
lower--.f6477.2
Applied rewrites77.2%
Taylor expanded in y around 0
Applied rewrites77.2%
(FPCore (x y z) :precision binary64 (let* ((t_0 (* (- x z) y))) (if (<= y -5e-14) t_0 (if (<= y 5.2e-43) (* 1.0 z) t_0))))
double code(double x, double y, double z) {
double t_0 = (x - z) * y;
double tmp;
if (y <= -5e-14) {
tmp = t_0;
} else if (y <= 5.2e-43) {
tmp = 1.0 * 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 <= (-5d-14)) then
tmp = t_0
else if (y <= 5.2d-43) then
tmp = 1.0d0 * 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 <= -5e-14) {
tmp = t_0;
} else if (y <= 5.2e-43) {
tmp = 1.0 * z;
} else {
tmp = t_0;
}
return tmp;
}
def code(x, y, z): t_0 = (x - z) * y tmp = 0 if y <= -5e-14: tmp = t_0 elif y <= 5.2e-43: tmp = 1.0 * z else: tmp = t_0 return tmp
function code(x, y, z) t_0 = Float64(Float64(x - z) * y) tmp = 0.0 if (y <= -5e-14) tmp = t_0; elseif (y <= 5.2e-43) tmp = Float64(1.0 * 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 <= -5e-14) tmp = t_0; elseif (y <= 5.2e-43) tmp = 1.0 * 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, -5e-14], t$95$0, If[LessEqual[y, 5.2e-43], N[(1.0 * z), $MachinePrecision], t$95$0]]]
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left(x - z\right) \cdot y\\
\mathbf{if}\;y \leq -5 \cdot 10^{-14}:\\
\;\;\;\;t\_0\\
\mathbf{elif}\;y \leq 5.2 \cdot 10^{-43}:\\
\;\;\;\;1 \cdot z\\
\mathbf{else}:\\
\;\;\;\;t\_0\\
\end{array}
\end{array}
if y < -5.0000000000000002e-14 or 5.2e-43 < y Initial program 96.3%
Taylor expanded in y around inf
*-commutativeN/A
remove-double-negN/A
mul-1-negN/A
mul-1-negN/A
distribute-neg-inN/A
+-commutativeN/A
lower-*.f64N/A
+-commutativeN/A
distribute-neg-inN/A
mul-1-negN/A
remove-double-negN/A
unsub-negN/A
lower--.f6498.3
Applied rewrites98.3%
if -5.0000000000000002e-14 < y < 5.2e-43Initial program 100.0%
Taylor expanded in x around 0
*-commutativeN/A
lower-*.f64N/A
lower--.f6477.2
Applied rewrites77.2%
Taylor expanded in y around 0
Applied rewrites77.2%
(FPCore (x y z) :precision binary64 (let* ((t_0 (* (- 1.0 y) z))) (if (<= z -21000000.0) t_0 (if (<= z 1.25e-152) (* y x) t_0))))
double code(double x, double y, double z) {
double t_0 = (1.0 - y) * z;
double tmp;
if (z <= -21000000.0) {
tmp = t_0;
} else if (z <= 1.25e-152) {
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 = (1.0d0 - y) * z
if (z <= (-21000000.0d0)) then
tmp = t_0
else if (z <= 1.25d-152) 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 = (1.0 - y) * z;
double tmp;
if (z <= -21000000.0) {
tmp = t_0;
} else if (z <= 1.25e-152) {
tmp = y * x;
} else {
tmp = t_0;
}
return tmp;
}
def code(x, y, z): t_0 = (1.0 - y) * z tmp = 0 if z <= -21000000.0: tmp = t_0 elif z <= 1.25e-152: tmp = y * x else: tmp = t_0 return tmp
function code(x, y, z) t_0 = Float64(Float64(1.0 - y) * z) tmp = 0.0 if (z <= -21000000.0) tmp = t_0; elseif (z <= 1.25e-152) tmp = Float64(y * x); else tmp = t_0; end return tmp end
function tmp_2 = code(x, y, z) t_0 = (1.0 - y) * z; tmp = 0.0; if (z <= -21000000.0) tmp = t_0; elseif (z <= 1.25e-152) tmp = y * x; else tmp = t_0; end tmp_2 = tmp; end
code[x_, y_, z_] := Block[{t$95$0 = N[(N[(1.0 - y), $MachinePrecision] * z), $MachinePrecision]}, If[LessEqual[z, -21000000.0], t$95$0, If[LessEqual[z, 1.25e-152], N[(y * x), $MachinePrecision], t$95$0]]]
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left(1 - y\right) \cdot z\\
\mathbf{if}\;z \leq -21000000:\\
\;\;\;\;t\_0\\
\mathbf{elif}\;z \leq 1.25 \cdot 10^{-152}:\\
\;\;\;\;y \cdot x\\
\mathbf{else}:\\
\;\;\;\;t\_0\\
\end{array}
\end{array}
if z < -2.1e7 or 1.2499999999999999e-152 < z Initial program 96.7%
Taylor expanded in x around 0
*-commutativeN/A
lower-*.f64N/A
lower--.f6480.7
Applied rewrites80.7%
if -2.1e7 < z < 1.2499999999999999e-152Initial program 100.0%
Taylor expanded in x around 0
*-commutativeN/A
lower-*.f64N/A
lower--.f6431.2
Applied rewrites31.2%
Taylor expanded in x around inf
*-commutativeN/A
lower-*.f6468.8
Applied rewrites68.8%
(FPCore (x y z) :precision binary64 (if (<= y -5e-14) (* y x) (if (<= y 5.2e-43) (* 1.0 z) (* y x))))
double code(double x, double y, double z) {
double tmp;
if (y <= -5e-14) {
tmp = y * x;
} else if (y <= 5.2e-43) {
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 <= (-5d-14)) then
tmp = y * x
else if (y <= 5.2d-43) 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 <= -5e-14) {
tmp = y * x;
} else if (y <= 5.2e-43) {
tmp = 1.0 * z;
} else {
tmp = y * x;
}
return tmp;
}
def code(x, y, z): tmp = 0 if y <= -5e-14: tmp = y * x elif y <= 5.2e-43: tmp = 1.0 * z else: tmp = y * x return tmp
function code(x, y, z) tmp = 0.0 if (y <= -5e-14) tmp = Float64(y * x); elseif (y <= 5.2e-43) 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 <= -5e-14) tmp = y * x; elseif (y <= 5.2e-43) tmp = 1.0 * z; else tmp = y * x; end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[y, -5e-14], N[(y * x), $MachinePrecision], If[LessEqual[y, 5.2e-43], N[(1.0 * z), $MachinePrecision], N[(y * x), $MachinePrecision]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \leq -5 \cdot 10^{-14}:\\
\;\;\;\;y \cdot x\\
\mathbf{elif}\;y \leq 5.2 \cdot 10^{-43}:\\
\;\;\;\;1 \cdot z\\
\mathbf{else}:\\
\;\;\;\;y \cdot x\\
\end{array}
\end{array}
if y < -5.0000000000000002e-14 or 5.2e-43 < y Initial program 96.3%
Taylor expanded in x around 0
*-commutativeN/A
lower-*.f64N/A
lower--.f6445.6
Applied rewrites45.6%
Taylor expanded in x around inf
*-commutativeN/A
lower-*.f6458.8
Applied rewrites58.8%
if -5.0000000000000002e-14 < y < 5.2e-43Initial program 100.0%
Taylor expanded in x around 0
*-commutativeN/A
lower-*.f64N/A
lower--.f6477.2
Applied rewrites77.2%
Taylor expanded in y around 0
Applied rewrites77.2%
(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 x around 0
*-commutativeN/A
lower-*.f64N/A
lower--.f6460.4
Applied rewrites60.4%
Taylor expanded in x around inf
*-commutativeN/A
lower-*.f6442.3
Applied rewrites42.3%
(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 2024332
(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))))