
(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 y (- x z) z))
double code(double x, double y, double z) {
return fma(y, (x - z), z);
}
function code(x, y, z) return fma(y, Float64(x - z), z) end
code[x_, y_, z_] := N[(y * N[(x - z), $MachinePrecision] + z), $MachinePrecision]
\begin{array}{l}
\\
\mathsf{fma}\left(y, x - z, z\right)
\end{array}
Initial program 98.4%
+-commutative98.4%
sub-neg98.4%
distribute-rgt-in98.4%
*-lft-identity98.4%
associate-+l+98.4%
+-commutative98.4%
*-commutative98.4%
neg-mul-198.4%
associate-*r*98.4%
distribute-rgt-out100.0%
fma-def100.0%
+-commutative100.0%
*-commutative100.0%
neg-mul-1100.0%
unsub-neg100.0%
Simplified100.0%
Final simplification100.0%
(FPCore (x y z)
:precision binary64
(let* ((t_0 (* y (- z))))
(if (<= y -2.2e+184)
(* y x)
(if (<= y -9.8e+156)
t_0
(if (<= y -2.4e+95)
(* y x)
(if (<= y -4.8e+35)
t_0
(if (<= y -4.9e-88)
(* y x)
(if (<= y 2.4e-74) z (if (<= y 2.6e+136) (* y x) t_0)))))))))
double code(double x, double y, double z) {
double t_0 = y * -z;
double tmp;
if (y <= -2.2e+184) {
tmp = y * x;
} else if (y <= -9.8e+156) {
tmp = t_0;
} else if (y <= -2.4e+95) {
tmp = y * x;
} else if (y <= -4.8e+35) {
tmp = t_0;
} else if (y <= -4.9e-88) {
tmp = y * x;
} else if (y <= 2.4e-74) {
tmp = z;
} else if (y <= 2.6e+136) {
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 = y * -z
if (y <= (-2.2d+184)) then
tmp = y * x
else if (y <= (-9.8d+156)) then
tmp = t_0
else if (y <= (-2.4d+95)) then
tmp = y * x
else if (y <= (-4.8d+35)) then
tmp = t_0
else if (y <= (-4.9d-88)) then
tmp = y * x
else if (y <= 2.4d-74) then
tmp = z
else if (y <= 2.6d+136) 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 = y * -z;
double tmp;
if (y <= -2.2e+184) {
tmp = y * x;
} else if (y <= -9.8e+156) {
tmp = t_0;
} else if (y <= -2.4e+95) {
tmp = y * x;
} else if (y <= -4.8e+35) {
tmp = t_0;
} else if (y <= -4.9e-88) {
tmp = y * x;
} else if (y <= 2.4e-74) {
tmp = z;
} else if (y <= 2.6e+136) {
tmp = y * x;
} else {
tmp = t_0;
}
return tmp;
}
def code(x, y, z): t_0 = y * -z tmp = 0 if y <= -2.2e+184: tmp = y * x elif y <= -9.8e+156: tmp = t_0 elif y <= -2.4e+95: tmp = y * x elif y <= -4.8e+35: tmp = t_0 elif y <= -4.9e-88: tmp = y * x elif y <= 2.4e-74: tmp = z elif y <= 2.6e+136: tmp = y * x else: tmp = t_0 return tmp
function code(x, y, z) t_0 = Float64(y * Float64(-z)) tmp = 0.0 if (y <= -2.2e+184) tmp = Float64(y * x); elseif (y <= -9.8e+156) tmp = t_0; elseif (y <= -2.4e+95) tmp = Float64(y * x); elseif (y <= -4.8e+35) tmp = t_0; elseif (y <= -4.9e-88) tmp = Float64(y * x); elseif (y <= 2.4e-74) tmp = z; elseif (y <= 2.6e+136) tmp = Float64(y * x); else tmp = t_0; end return tmp end
function tmp_2 = code(x, y, z) t_0 = y * -z; tmp = 0.0; if (y <= -2.2e+184) tmp = y * x; elseif (y <= -9.8e+156) tmp = t_0; elseif (y <= -2.4e+95) tmp = y * x; elseif (y <= -4.8e+35) tmp = t_0; elseif (y <= -4.9e-88) tmp = y * x; elseif (y <= 2.4e-74) tmp = z; elseif (y <= 2.6e+136) tmp = y * x; else tmp = t_0; end tmp_2 = tmp; end
code[x_, y_, z_] := Block[{t$95$0 = N[(y * (-z)), $MachinePrecision]}, If[LessEqual[y, -2.2e+184], N[(y * x), $MachinePrecision], If[LessEqual[y, -9.8e+156], t$95$0, If[LessEqual[y, -2.4e+95], N[(y * x), $MachinePrecision], If[LessEqual[y, -4.8e+35], t$95$0, If[LessEqual[y, -4.9e-88], N[(y * x), $MachinePrecision], If[LessEqual[y, 2.4e-74], z, If[LessEqual[y, 2.6e+136], N[(y * x), $MachinePrecision], t$95$0]]]]]]]]
\begin{array}{l}
\\
\begin{array}{l}
t_0 := y \cdot \left(-z\right)\\
\mathbf{if}\;y \leq -2.2 \cdot 10^{+184}:\\
\;\;\;\;y \cdot x\\
\mathbf{elif}\;y \leq -9.8 \cdot 10^{+156}:\\
\;\;\;\;t_0\\
\mathbf{elif}\;y \leq -2.4 \cdot 10^{+95}:\\
\;\;\;\;y \cdot x\\
\mathbf{elif}\;y \leq -4.8 \cdot 10^{+35}:\\
\;\;\;\;t_0\\
\mathbf{elif}\;y \leq -4.9 \cdot 10^{-88}:\\
\;\;\;\;y \cdot x\\
\mathbf{elif}\;y \leq 2.4 \cdot 10^{-74}:\\
\;\;\;\;z\\
\mathbf{elif}\;y \leq 2.6 \cdot 10^{+136}:\\
\;\;\;\;y \cdot x\\
\mathbf{else}:\\
\;\;\;\;t_0\\
\end{array}
\end{array}
if y < -2.2e184 or -9.79999999999999938e156 < y < -2.4e95 or -4.80000000000000029e35 < y < -4.90000000000000028e-88 or 2.3999999999999999e-74 < y < 2.6000000000000001e136Initial program 97.3%
Taylor expanded in x around inf 66.8%
if -2.2e184 < y < -9.79999999999999938e156 or -2.4e95 < y < -4.80000000000000029e35 or 2.6000000000000001e136 < y Initial program 98.1%
Taylor expanded in y around inf 100.0%
neg-mul-1100.0%
+-commutative100.0%
sub-neg100.0%
Simplified100.0%
Taylor expanded in x around 0 65.8%
mul-1-neg65.8%
*-commutative65.8%
distribute-rgt-neg-in65.8%
Simplified65.8%
if -4.90000000000000028e-88 < y < 2.3999999999999999e-74Initial program 100.0%
Taylor expanded in y around 0 74.3%
Final simplification69.2%
(FPCore (x y z) :precision binary64 (if (or (<= y -2.5e-88) (not (<= y 5e-27))) (* y (- x z)) z))
double code(double x, double y, double z) {
double tmp;
if ((y <= -2.5e-88) || !(y <= 5e-27)) {
tmp = y * (x - 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 ((y <= (-2.5d-88)) .or. (.not. (y <= 5d-27))) then
tmp = y * (x - z)
else
tmp = z
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if ((y <= -2.5e-88) || !(y <= 5e-27)) {
tmp = y * (x - z);
} else {
tmp = z;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (y <= -2.5e-88) or not (y <= 5e-27): tmp = y * (x - z) else: tmp = z return tmp
function code(x, y, z) tmp = 0.0 if ((y <= -2.5e-88) || !(y <= 5e-27)) tmp = Float64(y * Float64(x - z)); else tmp = z; end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((y <= -2.5e-88) || ~((y <= 5e-27))) tmp = y * (x - z); else tmp = z; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[y, -2.5e-88], N[Not[LessEqual[y, 5e-27]], $MachinePrecision]], N[(y * N[(x - z), $MachinePrecision]), $MachinePrecision], z]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \leq -2.5 \cdot 10^{-88} \lor \neg \left(y \leq 5 \cdot 10^{-27}\right):\\
\;\;\;\;y \cdot \left(x - z\right)\\
\mathbf{else}:\\
\;\;\;\;z\\
\end{array}
\end{array}
if y < -2.50000000000000004e-88 or 5.0000000000000002e-27 < y Initial program 97.5%
Taylor expanded in y around inf 92.0%
neg-mul-192.0%
+-commutative92.0%
sub-neg92.0%
Simplified92.0%
if -2.50000000000000004e-88 < y < 5.0000000000000002e-27Initial program 100.0%
Taylor expanded in y around 0 72.9%
Final simplification84.8%
(FPCore (x y z) :precision binary64 (if (<= y -4.9e-88) (* y x) (if (<= y 2.2e-74) z (* y x))))
double code(double x, double y, double z) {
double tmp;
if (y <= -4.9e-88) {
tmp = y * x;
} else if (y <= 2.2e-74) {
tmp = 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 <= (-4.9d-88)) then
tmp = y * x
else if (y <= 2.2d-74) then
tmp = 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 <= -4.9e-88) {
tmp = y * x;
} else if (y <= 2.2e-74) {
tmp = z;
} else {
tmp = y * x;
}
return tmp;
}
def code(x, y, z): tmp = 0 if y <= -4.9e-88: tmp = y * x elif y <= 2.2e-74: tmp = z else: tmp = y * x return tmp
function code(x, y, z) tmp = 0.0 if (y <= -4.9e-88) tmp = Float64(y * x); elseif (y <= 2.2e-74) tmp = z; else tmp = Float64(y * x); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if (y <= -4.9e-88) tmp = y * x; elseif (y <= 2.2e-74) tmp = z; else tmp = y * x; end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[y, -4.9e-88], N[(y * x), $MachinePrecision], If[LessEqual[y, 2.2e-74], z, N[(y * x), $MachinePrecision]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \leq -4.9 \cdot 10^{-88}:\\
\;\;\;\;y \cdot x\\
\mathbf{elif}\;y \leq 2.2 \cdot 10^{-74}:\\
\;\;\;\;z\\
\mathbf{else}:\\
\;\;\;\;y \cdot x\\
\end{array}
\end{array}
if y < -4.90000000000000028e-88 or 2.2000000000000001e-74 < y Initial program 97.6%
Taylor expanded in x around inf 57.4%
if -4.90000000000000028e-88 < y < 2.2000000000000001e-74Initial program 100.0%
Taylor expanded in y around 0 74.3%
Final simplification63.3%
(FPCore (x y z) :precision binary64 (+ z (* y (- x z))))
double code(double x, double y, double z) {
return z + (y * (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 = z + (y * (x - z))
end function
public static double code(double x, double y, double z) {
return z + (y * (x - z));
}
def code(x, y, z): return z + (y * (x - z))
function code(x, y, z) return Float64(z + Float64(y * Float64(x - z))) end
function tmp = code(x, y, z) tmp = z + (y * (x - z)); end
code[x_, y_, z_] := N[(z + N[(y * N[(x - z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
z + y \cdot \left(x - z\right)
\end{array}
Initial program 98.4%
+-commutative98.4%
sub-neg98.4%
distribute-rgt-in98.4%
*-lft-identity98.4%
associate-+l+98.4%
+-commutative98.4%
*-commutative98.4%
neg-mul-198.4%
associate-*r*98.4%
distribute-rgt-out100.0%
fma-def100.0%
+-commutative100.0%
*-commutative100.0%
neg-mul-1100.0%
unsub-neg100.0%
Simplified100.0%
Taylor expanded in y around 0 100.0%
Final simplification100.0%
(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 98.4%
Taylor expanded in y around 0 31.8%
Final simplification31.8%
(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 2023217
(FPCore (x y z)
:name "Diagrams.TwoD.Segment:bezierClip from diagrams-lib-1.3.0.3"
:precision binary64
:herbie-target
(- z (* (- z x) y))
(+ (* x y) (* z (- 1.0 y))))