
(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 6 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 96.1%
*-commutative96.1%
sub-neg96.1%
distribute-rgt-in96.1%
metadata-eval96.1%
neg-mul-196.1%
associate-+r+96.1%
unsub-neg96.1%
distribute-lft-out100.0%
Simplified100.0%
(FPCore (x y z) :precision binary64 (if (<= x -1.15e+20) (* x z) (if (or (<= x -2.9e-87) (not (<= x 1.25e-45))) (* x y) (- z))))
double code(double x, double y, double z) {
double tmp;
if (x <= -1.15e+20) {
tmp = x * z;
} else if ((x <= -2.9e-87) || !(x <= 1.25e-45)) {
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 <= (-1.15d+20)) then
tmp = x * z
else if ((x <= (-2.9d-87)) .or. (.not. (x <= 1.25d-45))) 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 <= -1.15e+20) {
tmp = x * z;
} else if ((x <= -2.9e-87) || !(x <= 1.25e-45)) {
tmp = x * y;
} else {
tmp = -z;
}
return tmp;
}
def code(x, y, z): tmp = 0 if x <= -1.15e+20: tmp = x * z elif (x <= -2.9e-87) or not (x <= 1.25e-45): tmp = x * y else: tmp = -z return tmp
function code(x, y, z) tmp = 0.0 if (x <= -1.15e+20) tmp = Float64(x * z); elseif ((x <= -2.9e-87) || !(x <= 1.25e-45)) tmp = Float64(x * y); else tmp = Float64(-z); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if (x <= -1.15e+20) tmp = x * z; elseif ((x <= -2.9e-87) || ~((x <= 1.25e-45))) tmp = x * y; else tmp = -z; end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[x, -1.15e+20], N[(x * z), $MachinePrecision], If[Or[LessEqual[x, -2.9e-87], N[Not[LessEqual[x, 1.25e-45]], $MachinePrecision]], N[(x * y), $MachinePrecision], (-z)]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -1.15 \cdot 10^{+20}:\\
\;\;\;\;x \cdot z\\
\mathbf{elif}\;x \leq -2.9 \cdot 10^{-87} \lor \neg \left(x \leq 1.25 \cdot 10^{-45}\right):\\
\;\;\;\;x \cdot y\\
\mathbf{else}:\\
\;\;\;\;-z\\
\end{array}
\end{array}
if x < -1.15e20Initial program 93.6%
Taylor expanded in x around inf 100.0%
+-commutative100.0%
Simplified100.0%
Taylor expanded in z around inf 60.8%
*-commutative60.8%
Simplified60.8%
if -1.15e20 < x < -2.8999999999999999e-87 or 1.24999999999999994e-45 < x Initial program 93.4%
Taylor expanded in y around inf 60.0%
if -2.8999999999999999e-87 < x < 1.24999999999999994e-45Initial program 100.0%
Taylor expanded in x around 0 80.4%
neg-mul-180.4%
Simplified80.4%
Final simplification68.3%
(FPCore (x y z) :precision binary64 (if (or (<= x -1.0) (not (<= x 0.0065))) (* x (+ y z)) (- (* x y) z)))
double code(double x, double y, double z) {
double tmp;
if ((x <= -1.0) || !(x <= 0.0065)) {
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 <= 0.0065d0))) 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 <= 0.0065)) {
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 <= 0.0065): tmp = x * (y + z) else: tmp = (x * y) - z return tmp
function code(x, y, z) tmp = 0.0 if ((x <= -1.0) || !(x <= 0.0065)) 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 <= 0.0065))) 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, 0.0065]], $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 0.0065\right):\\
\;\;\;\;x \cdot \left(y + z\right)\\
\mathbf{else}:\\
\;\;\;\;x \cdot y - z\\
\end{array}
\end{array}
if x < -1 or 0.0064999999999999997 < x Initial program 92.3%
Taylor expanded in x around inf 99.5%
+-commutative99.5%
Simplified99.5%
if -1 < x < 0.0064999999999999997Initial 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 simplification99.1%
(FPCore (x y z) :precision binary64 (if (or (<= x -4e-104) (not (<= x 2.8e-45))) (* x (+ y z)) (- z)))
double code(double x, double y, double z) {
double tmp;
if ((x <= -4e-104) || !(x <= 2.8e-45)) {
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 <= (-4d-104)) .or. (.not. (x <= 2.8d-45))) 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 <= -4e-104) || !(x <= 2.8e-45)) {
tmp = x * (y + z);
} else {
tmp = -z;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (x <= -4e-104) or not (x <= 2.8e-45): tmp = x * (y + z) else: tmp = -z return tmp
function code(x, y, z) tmp = 0.0 if ((x <= -4e-104) || !(x <= 2.8e-45)) 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 <= -4e-104) || ~((x <= 2.8e-45))) tmp = x * (y + z); else tmp = -z; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[x, -4e-104], N[Not[LessEqual[x, 2.8e-45]], $MachinePrecision]], N[(x * N[(y + z), $MachinePrecision]), $MachinePrecision], (-z)]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -4 \cdot 10^{-104} \lor \neg \left(x \leq 2.8 \cdot 10^{-45}\right):\\
\;\;\;\;x \cdot \left(y + z\right)\\
\mathbf{else}:\\
\;\;\;\;-z\\
\end{array}
\end{array}
if x < -3.99999999999999971e-104 or 2.8000000000000001e-45 < x Initial program 93.7%
Taylor expanded in x around inf 93.7%
+-commutative93.7%
Simplified93.7%
if -3.99999999999999971e-104 < x < 2.8000000000000001e-45Initial program 100.0%
Taylor expanded in x around 0 81.6%
neg-mul-181.6%
Simplified81.6%
Final simplification89.1%
(FPCore (x y z) :precision binary64 (if (or (<= x -3.45e-87) (not (<= x 2.2e-45))) (* x y) (- z)))
double code(double x, double y, double z) {
double tmp;
if ((x <= -3.45e-87) || !(x <= 2.2e-45)) {
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 <= (-3.45d-87)) .or. (.not. (x <= 2.2d-45))) 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 <= -3.45e-87) || !(x <= 2.2e-45)) {
tmp = x * y;
} else {
tmp = -z;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (x <= -3.45e-87) or not (x <= 2.2e-45): tmp = x * y else: tmp = -z return tmp
function code(x, y, z) tmp = 0.0 if ((x <= -3.45e-87) || !(x <= 2.2e-45)) tmp = Float64(x * y); else tmp = Float64(-z); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((x <= -3.45e-87) || ~((x <= 2.2e-45))) tmp = x * y; else tmp = -z; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[x, -3.45e-87], N[Not[LessEqual[x, 2.2e-45]], $MachinePrecision]], N[(x * y), $MachinePrecision], (-z)]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -3.45 \cdot 10^{-87} \lor \neg \left(x \leq 2.2 \cdot 10^{-45}\right):\\
\;\;\;\;x \cdot y\\
\mathbf{else}:\\
\;\;\;\;-z\\
\end{array}
\end{array}
if x < -3.45000000000000021e-87 or 2.19999999999999993e-45 < x Initial program 93.5%
Taylor expanded in y around inf 54.4%
if -3.45000000000000021e-87 < x < 2.19999999999999993e-45Initial program 100.0%
Taylor expanded in x around 0 80.4%
neg-mul-180.4%
Simplified80.4%
Final simplification64.7%
(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 96.1%
Taylor expanded in x around 0 35.9%
neg-mul-135.9%
Simplified35.9%
herbie shell --seed 2024170
(FPCore (x y z)
:name "Graphics.Rendering.Chart.Drawing:drawTextsR from Chart-1.5.3"
:precision binary64
(+ (* x y) (* (- x 1.0) z)))