
(FPCore (x y z) :precision binary64 (+ (* x y) (* (- x 1.0) z)))
double code(double x, double y, double z) {
return (x * y) + ((x - 1.0) * 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) + ((x - 1.0d0) * z)
end function
public static double code(double x, double y, double z) {
return (x * y) + ((x - 1.0) * z);
}
def code(x, y, z): return (x * y) + ((x - 1.0) * z)
function code(x, y, z) return Float64(Float64(x * y) + Float64(Float64(x - 1.0) * z)) end
function tmp = code(x, y, z) tmp = (x * y) + ((x - 1.0) * z); end
code[x_, y_, z_] := N[(N[(x * y), $MachinePrecision] + N[(N[(x - 1.0), $MachinePrecision] * z), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
x \cdot y + \left(x - 1\right) \cdot z
\end{array}
Sampling outcomes in binary64 precision:
Herbie found 7 alternatives:
| Alternative | Accuracy | Speedup |
|---|
(FPCore (x y z) :precision binary64 (+ (* x y) (* (- x 1.0) z)))
double code(double x, double y, double z) {
return (x * y) + ((x - 1.0) * 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) + ((x - 1.0d0) * z)
end function
public static double code(double x, double y, double z) {
return (x * y) + ((x - 1.0) * z);
}
def code(x, y, z): return (x * y) + ((x - 1.0) * z)
function code(x, y, z) return Float64(Float64(x * y) + Float64(Float64(x - 1.0) * z)) end
function tmp = code(x, y, z) tmp = (x * y) + ((x - 1.0) * z); end
code[x_, y_, z_] := N[(N[(x * y), $MachinePrecision] + N[(N[(x - 1.0), $MachinePrecision] * z), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
x \cdot y + \left(x - 1\right) \cdot z
\end{array}
(FPCore (x y z) :precision binary64 (- (* x (+ y z)) z))
double code(double x, double y, double z) {
return (x * (y + z)) - 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 + z)) - z
end function
public static double code(double x, double y, double z) {
return (x * (y + z)) - z;
}
def code(x, y, z): return (x * (y + z)) - z
function code(x, y, z) return Float64(Float64(x * Float64(y + z)) - z) end
function tmp = code(x, y, z) tmp = (x * (y + z)) - z; end
code[x_, y_, z_] := N[(N[(x * N[(y + z), $MachinePrecision]), $MachinePrecision] - z), $MachinePrecision]
\begin{array}{l}
\\
x \cdot \left(y + z\right) - z
\end{array}
Initial program 98.4%
*-commutative98.4%
sub-neg98.4%
distribute-rgt-in98.4%
metadata-eval98.4%
neg-mul-198.4%
associate-+r+98.4%
unsub-neg98.4%
distribute-lft-out100.0%
Simplified100.0%
(FPCore (x y z) :precision binary64 (if (<= x -0.0105) (* x y) (if (<= x 1.0) (- z) (if (<= x 1.7e+140) (* x z) (* x y)))))
double code(double x, double y, double z) {
double tmp;
if (x <= -0.0105) {
tmp = x * y;
} else if (x <= 1.0) {
tmp = -z;
} else if (x <= 1.7e+140) {
tmp = x * z;
} else {
tmp = 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 <= (-0.0105d0)) then
tmp = x * y
else if (x <= 1.0d0) then
tmp = -z
else if (x <= 1.7d+140) then
tmp = x * z
else
tmp = x * y
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if (x <= -0.0105) {
tmp = x * y;
} else if (x <= 1.0) {
tmp = -z;
} else if (x <= 1.7e+140) {
tmp = x * z;
} else {
tmp = x * y;
}
return tmp;
}
def code(x, y, z): tmp = 0 if x <= -0.0105: tmp = x * y elif x <= 1.0: tmp = -z elif x <= 1.7e+140: tmp = x * z else: tmp = x * y return tmp
function code(x, y, z) tmp = 0.0 if (x <= -0.0105) tmp = Float64(x * y); elseif (x <= 1.0) tmp = Float64(-z); elseif (x <= 1.7e+140) tmp = Float64(x * z); else tmp = Float64(x * y); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if (x <= -0.0105) tmp = x * y; elseif (x <= 1.0) tmp = -z; elseif (x <= 1.7e+140) tmp = x * z; else tmp = x * y; end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[x, -0.0105], N[(x * y), $MachinePrecision], If[LessEqual[x, 1.0], (-z), If[LessEqual[x, 1.7e+140], N[(x * z), $MachinePrecision], N[(x * y), $MachinePrecision]]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -0.0105:\\
\;\;\;\;x \cdot y\\
\mathbf{elif}\;x \leq 1:\\
\;\;\;\;-z\\
\mathbf{elif}\;x \leq 1.7 \cdot 10^{+140}:\\
\;\;\;\;x \cdot z\\
\mathbf{else}:\\
\;\;\;\;x \cdot y\\
\end{array}
\end{array}
if x < -0.0105000000000000007 or 1.7e140 < x Initial program 95.8%
Taylor expanded in y around inf 62.8%
if -0.0105000000000000007 < x < 1Initial program 100.0%
Taylor expanded in x around 0 70.7%
mul-1-neg70.7%
Simplified70.7%
if 1 < x < 1.7e140Initial program 100.0%
Taylor expanded in x around inf 95.7%
+-commutative95.7%
Simplified95.7%
Taylor expanded in z around inf 60.4%
*-commutative60.4%
Simplified60.4%
Final simplification66.0%
(FPCore (x y z) :precision binary64 (if (or (<= x -1.0) (not (<= x 1.0))) (* x (+ y z)) (- (* x y) z)))
double code(double x, double y, double z) {
double tmp;
if ((x <= -1.0) || !(x <= 1.0)) {
tmp = x * (y + z);
} else {
tmp = (x * y) - 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 <= (-1.0d0)) .or. (.not. (x <= 1.0d0))) then
tmp = x * (y + z)
else
tmp = (x * y) - z
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 = (x * y) - z;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (x <= -1.0) or not (x <= 1.0): tmp = x * (y + z) else: tmp = (x * y) - z 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(Float64(x * y) - z); 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 = (x * y) - z; 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[(N[(x * y), $MachinePrecision] - z), $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}:\\
\;\;\;\;x \cdot y - z\\
\end{array}
\end{array}
if x < -1 or 1 < x Initial program 97.1%
Taylor expanded in x around inf 98.7%
+-commutative98.7%
Simplified98.7%
if -1 < x < 1Initial program 100.0%
*-commutative100.0%
sub-neg100.0%
distribute-rgt-in100.0%
metadata-eval100.0%
neg-mul-1100.0%
associate-+r+100.0%
unsub-neg100.0%
distribute-lft-out100.0%
Simplified100.0%
Taylor expanded in y around inf 98.7%
Final simplification98.7%
(FPCore (x y z) :precision binary64 (if (or (<= x -1.5) (not (<= x 3.8e-26))) (* x (+ y z)) (* z (+ x -1.0))))
double code(double x, double y, double z) {
double tmp;
if ((x <= -1.5) || !(x <= 3.8e-26)) {
tmp = x * (y + z);
} else {
tmp = z * (x + -1.0);
}
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) :: tmp
if ((x <= (-1.5d0)) .or. (.not. (x <= 3.8d-26))) then
tmp = x * (y + z)
else
tmp = z * (x + (-1.0d0))
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if ((x <= -1.5) || !(x <= 3.8e-26)) {
tmp = x * (y + z);
} else {
tmp = z * (x + -1.0);
}
return tmp;
}
def code(x, y, z): tmp = 0 if (x <= -1.5) or not (x <= 3.8e-26): tmp = x * (y + z) else: tmp = z * (x + -1.0) return tmp
function code(x, y, z) tmp = 0.0 if ((x <= -1.5) || !(x <= 3.8e-26)) tmp = Float64(x * Float64(y + z)); else tmp = Float64(z * Float64(x + -1.0)); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((x <= -1.5) || ~((x <= 3.8e-26))) tmp = x * (y + z); else tmp = z * (x + -1.0); end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[x, -1.5], N[Not[LessEqual[x, 3.8e-26]], $MachinePrecision]], N[(x * N[(y + z), $MachinePrecision]), $MachinePrecision], N[(z * N[(x + -1.0), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -1.5 \lor \neg \left(x \leq 3.8 \cdot 10^{-26}\right):\\
\;\;\;\;x \cdot \left(y + z\right)\\
\mathbf{else}:\\
\;\;\;\;z \cdot \left(x + -1\right)\\
\end{array}
\end{array}
if x < -1.5 or 3.80000000000000015e-26 < x Initial program 97.1%
Taylor expanded in x around inf 98.0%
+-commutative98.0%
Simplified98.0%
if -1.5 < x < 3.80000000000000015e-26Initial program 100.0%
Taylor expanded in y around 0 72.9%
Final simplification86.7%
(FPCore (x y z) :precision binary64 (if (or (<= x -0.0105) (not (<= x 9.5e-27))) (* x (+ y z)) (- z)))
double code(double x, double y, double z) {
double tmp;
if ((x <= -0.0105) || !(x <= 9.5e-27)) {
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 <= (-0.0105d0)) .or. (.not. (x <= 9.5d-27))) 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 <= -0.0105) || !(x <= 9.5e-27)) {
tmp = x * (y + z);
} else {
tmp = -z;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (x <= -0.0105) or not (x <= 9.5e-27): tmp = x * (y + z) else: tmp = -z return tmp
function code(x, y, z) tmp = 0.0 if ((x <= -0.0105) || !(x <= 9.5e-27)) tmp = Float64(x * Float64(y + z)); else tmp = Float64(-z); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((x <= -0.0105) || ~((x <= 9.5e-27))) tmp = x * (y + z); else tmp = -z; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[x, -0.0105], N[Not[LessEqual[x, 9.5e-27]], $MachinePrecision]], N[(x * N[(y + z), $MachinePrecision]), $MachinePrecision], (-z)]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -0.0105 \lor \neg \left(x \leq 9.5 \cdot 10^{-27}\right):\\
\;\;\;\;x \cdot \left(y + z\right)\\
\mathbf{else}:\\
\;\;\;\;-z\\
\end{array}
\end{array}
if x < -0.0105000000000000007 or 9.50000000000000037e-27 < x Initial program 97.1%
Taylor expanded in x around inf 98.0%
+-commutative98.0%
Simplified98.0%
if -0.0105000000000000007 < x < 9.50000000000000037e-27Initial program 100.0%
Taylor expanded in x around 0 71.7%
mul-1-neg71.7%
Simplified71.7%
Final simplification86.2%
(FPCore (x y z) :precision binary64 (if (or (<= x -0.0105) (not (<= x 3.05e-27))) (* x y) (- z)))
double code(double x, double y, double z) {
double tmp;
if ((x <= -0.0105) || !(x <= 3.05e-27)) {
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 <= (-0.0105d0)) .or. (.not. (x <= 3.05d-27))) 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 <= -0.0105) || !(x <= 3.05e-27)) {
tmp = x * y;
} else {
tmp = -z;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (x <= -0.0105) or not (x <= 3.05e-27): tmp = x * y else: tmp = -z return tmp
function code(x, y, z) tmp = 0.0 if ((x <= -0.0105) || !(x <= 3.05e-27)) tmp = Float64(x * y); else tmp = Float64(-z); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((x <= -0.0105) || ~((x <= 3.05e-27))) tmp = x * y; else tmp = -z; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[x, -0.0105], N[Not[LessEqual[x, 3.05e-27]], $MachinePrecision]], N[(x * y), $MachinePrecision], (-z)]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -0.0105 \lor \neg \left(x \leq 3.05 \cdot 10^{-27}\right):\\
\;\;\;\;x \cdot y\\
\mathbf{else}:\\
\;\;\;\;-z\\
\end{array}
\end{array}
if x < -0.0105000000000000007 or 3.05e-27 < x Initial program 97.1%
Taylor expanded in y around inf 55.4%
if -0.0105000000000000007 < x < 3.05e-27Initial program 100.0%
Taylor expanded in x around 0 71.7%
mul-1-neg71.7%
Simplified71.7%
Final simplification62.7%
(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 Float64(-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 x around 0 33.9%
mul-1-neg33.9%
Simplified33.9%
herbie shell --seed 2024097
(FPCore (x y z)
:name "Graphics.Rendering.Chart.Drawing:drawTextsR from Chart-1.5.3"
:precision binary64
(+ (* x y) (* (- x 1.0) z)))