
(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 7 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%
distribute-lft-out--98.4%
*-rgt-identity98.4%
cancel-sign-sub-inv98.4%
+-commutative98.4%
associate-+r+98.4%
+-commutative98.4%
distribute-rgt-out100.0%
fma-define100.0%
+-commutative100.0%
unsub-neg100.0%
Simplified100.0%
(FPCore (x y z) :precision binary64 (if (<= y -8.5e+136) (* y (- z)) (if (or (<= y -4.3e-60) (not (<= y 2.7e-20))) (* y x) z)))
double code(double x, double y, double z) {
double tmp;
if (y <= -8.5e+136) {
tmp = y * -z;
} else if ((y <= -4.3e-60) || !(y <= 2.7e-20)) {
tmp = y * x;
} 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 <= (-8.5d+136)) then
tmp = y * -z
else if ((y <= (-4.3d-60)) .or. (.not. (y <= 2.7d-20))) then
tmp = y * x
else
tmp = z
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if (y <= -8.5e+136) {
tmp = y * -z;
} else if ((y <= -4.3e-60) || !(y <= 2.7e-20)) {
tmp = y * x;
} else {
tmp = z;
}
return tmp;
}
def code(x, y, z): tmp = 0 if y <= -8.5e+136: tmp = y * -z elif (y <= -4.3e-60) or not (y <= 2.7e-20): tmp = y * x else: tmp = z return tmp
function code(x, y, z) tmp = 0.0 if (y <= -8.5e+136) tmp = Float64(y * Float64(-z)); elseif ((y <= -4.3e-60) || !(y <= 2.7e-20)) tmp = Float64(y * x); else tmp = z; end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if (y <= -8.5e+136) tmp = y * -z; elseif ((y <= -4.3e-60) || ~((y <= 2.7e-20))) tmp = y * x; else tmp = z; end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[y, -8.5e+136], N[(y * (-z)), $MachinePrecision], If[Or[LessEqual[y, -4.3e-60], N[Not[LessEqual[y, 2.7e-20]], $MachinePrecision]], N[(y * x), $MachinePrecision], z]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \leq -8.5 \cdot 10^{+136}:\\
\;\;\;\;y \cdot \left(-z\right)\\
\mathbf{elif}\;y \leq -4.3 \cdot 10^{-60} \lor \neg \left(y \leq 2.7 \cdot 10^{-20}\right):\\
\;\;\;\;y \cdot x\\
\mathbf{else}:\\
\;\;\;\;z\\
\end{array}
\end{array}
if y < -8.49999999999999966e136Initial program 94.2%
Taylor expanded in y around inf 100.0%
neg-mul-1100.0%
sub-neg100.0%
Simplified100.0%
Taylor expanded in x around 0 63.0%
mul-1-neg63.0%
distribute-rgt-neg-out63.0%
Simplified63.0%
if -8.49999999999999966e136 < y < -4.3000000000000001e-60 or 2.7e-20 < y Initial program 98.3%
Taylor expanded in x around inf 63.8%
*-commutative63.8%
Simplified63.8%
if -4.3000000000000001e-60 < y < 2.7e-20Initial program 100.0%
Taylor expanded in y around 0 100.0%
Taylor expanded in x around 0 80.5%
Final simplification70.5%
(FPCore (x y z) :precision binary64 (if (or (<= y -1.35e+39) (not (<= y 3e-18))) (* y (- x z)) (+ z (* y x))))
double code(double x, double y, double z) {
double tmp;
if ((y <= -1.35e+39) || !(y <= 3e-18)) {
tmp = y * (x - z);
} else {
tmp = z + (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 <= (-1.35d+39)) .or. (.not. (y <= 3d-18))) then
tmp = y * (x - z)
else
tmp = z + (y * x)
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if ((y <= -1.35e+39) || !(y <= 3e-18)) {
tmp = y * (x - z);
} else {
tmp = z + (y * x);
}
return tmp;
}
def code(x, y, z): tmp = 0 if (y <= -1.35e+39) or not (y <= 3e-18): tmp = y * (x - z) else: tmp = z + (y * x) return tmp
function code(x, y, z) tmp = 0.0 if ((y <= -1.35e+39) || !(y <= 3e-18)) tmp = Float64(y * Float64(x - z)); else tmp = Float64(z + Float64(y * x)); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((y <= -1.35e+39) || ~((y <= 3e-18))) tmp = y * (x - z); else tmp = z + (y * x); end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[y, -1.35e+39], N[Not[LessEqual[y, 3e-18]], $MachinePrecision]], N[(y * N[(x - z), $MachinePrecision]), $MachinePrecision], N[(z + N[(y * x), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \leq -1.35 \cdot 10^{+39} \lor \neg \left(y \leq 3 \cdot 10^{-18}\right):\\
\;\;\;\;y \cdot \left(x - z\right)\\
\mathbf{else}:\\
\;\;\;\;z + y \cdot x\\
\end{array}
\end{array}
if y < -1.35000000000000002e39 or 2.99999999999999983e-18 < y Initial program 97.0%
Taylor expanded in y around inf 100.0%
neg-mul-1100.0%
sub-neg100.0%
Simplified100.0%
if -1.35000000000000002e39 < y < 2.99999999999999983e-18Initial program 100.0%
Taylor expanded in y around 0 100.0%
Final simplification100.0%
(FPCore (x y z) :precision binary64 (if (or (<= y -2e-59) (not (<= y 6.5e-22))) (* y (- x z)) z))
double code(double x, double y, double z) {
double tmp;
if ((y <= -2e-59) || !(y <= 6.5e-22)) {
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 <= (-2d-59)) .or. (.not. (y <= 6.5d-22))) 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 <= -2e-59) || !(y <= 6.5e-22)) {
tmp = y * (x - z);
} else {
tmp = z;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (y <= -2e-59) or not (y <= 6.5e-22): tmp = y * (x - z) else: tmp = z return tmp
function code(x, y, z) tmp = 0.0 if ((y <= -2e-59) || !(y <= 6.5e-22)) 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 <= -2e-59) || ~((y <= 6.5e-22))) tmp = y * (x - z); else tmp = z; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[y, -2e-59], N[Not[LessEqual[y, 6.5e-22]], $MachinePrecision]], N[(y * N[(x - z), $MachinePrecision]), $MachinePrecision], z]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \leq -2 \cdot 10^{-59} \lor \neg \left(y \leq 6.5 \cdot 10^{-22}\right):\\
\;\;\;\;y \cdot \left(x - z\right)\\
\mathbf{else}:\\
\;\;\;\;z\\
\end{array}
\end{array}
if y < -2.0000000000000001e-59 or 6.50000000000000043e-22 < y Initial program 97.3%
Taylor expanded in y around inf 96.3%
neg-mul-196.3%
sub-neg96.3%
Simplified96.3%
if -2.0000000000000001e-59 < y < 6.50000000000000043e-22Initial program 100.0%
Taylor expanded in y around 0 100.0%
Taylor expanded in x around 0 80.5%
Final simplification89.9%
(FPCore (x y z) :precision binary64 (if (or (<= y -3.4e-60) (not (<= y 2.4e-19))) (* y x) z))
double code(double x, double y, double z) {
double tmp;
if ((y <= -3.4e-60) || !(y <= 2.4e-19)) {
tmp = y * x;
} 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 <= (-3.4d-60)) .or. (.not. (y <= 2.4d-19))) then
tmp = y * x
else
tmp = z
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if ((y <= -3.4e-60) || !(y <= 2.4e-19)) {
tmp = y * x;
} else {
tmp = z;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (y <= -3.4e-60) or not (y <= 2.4e-19): tmp = y * x else: tmp = z return tmp
function code(x, y, z) tmp = 0.0 if ((y <= -3.4e-60) || !(y <= 2.4e-19)) tmp = Float64(y * x); else tmp = z; end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((y <= -3.4e-60) || ~((y <= 2.4e-19))) tmp = y * x; else tmp = z; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[y, -3.4e-60], N[Not[LessEqual[y, 2.4e-19]], $MachinePrecision]], N[(y * x), $MachinePrecision], z]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \leq -3.4 \cdot 10^{-60} \lor \neg \left(y \leq 2.4 \cdot 10^{-19}\right):\\
\;\;\;\;y \cdot x\\
\mathbf{else}:\\
\;\;\;\;z\\
\end{array}
\end{array}
if y < -3.40000000000000007e-60 or 2.40000000000000023e-19 < y Initial program 97.3%
Taylor expanded in x around inf 59.2%
*-commutative59.2%
Simplified59.2%
if -3.40000000000000007e-60 < y < 2.40000000000000023e-19Initial program 100.0%
Taylor expanded in y around 0 100.0%
Taylor expanded in x around 0 80.5%
Final simplification67.9%
(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%
distribute-lft-out--98.4%
*-rgt-identity98.4%
cancel-sign-sub-inv98.4%
+-commutative98.4%
+-commutative98.4%
associate-+l+98.4%
distribute-lft-neg-out98.4%
remove-double-neg98.4%
distribute-rgt-neg-out98.4%
distribute-neg-out98.4%
sub-neg98.4%
distribute-rgt-neg-out98.4%
sub-neg98.4%
distribute-rgt-out--100.0%
Simplified100.0%
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 78.3%
Taylor expanded in x around 0 36.6%
(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 2024191
(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))))