
(FPCore (x y z) :precision binary64 (- (* (* x 3.0) y) z))
double code(double x, double y, double z) {
return ((x * 3.0) * y) - 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 * 3.0d0) * y) - z
end function
public static double code(double x, double y, double z) {
return ((x * 3.0) * y) - z;
}
def code(x, y, z): return ((x * 3.0) * y) - z
function code(x, y, z) return Float64(Float64(Float64(x * 3.0) * y) - z) end
function tmp = code(x, y, z) tmp = ((x * 3.0) * y) - z; end
code[x_, y_, z_] := N[(N[(N[(x * 3.0), $MachinePrecision] * y), $MachinePrecision] - z), $MachinePrecision]
\begin{array}{l}
\\
\left(x \cdot 3\right) \cdot y - z
\end{array}
Sampling outcomes in binary64 precision:
Herbie found 5 alternatives:
| Alternative | Accuracy | Speedup |
|---|
(FPCore (x y z) :precision binary64 (- (* (* x 3.0) y) z))
double code(double x, double y, double z) {
return ((x * 3.0) * y) - 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 * 3.0d0) * y) - z
end function
public static double code(double x, double y, double z) {
return ((x * 3.0) * y) - z;
}
def code(x, y, z): return ((x * 3.0) * y) - z
function code(x, y, z) return Float64(Float64(Float64(x * 3.0) * y) - z) end
function tmp = code(x, y, z) tmp = ((x * 3.0) * y) - z; end
code[x_, y_, z_] := N[(N[(N[(x * 3.0), $MachinePrecision] * y), $MachinePrecision] - z), $MachinePrecision]
\begin{array}{l}
\\
\left(x \cdot 3\right) \cdot y - z
\end{array}
NOTE: x, y, and z should be sorted in increasing order before calling this function. (FPCore (x y z) :precision binary64 (- (* y (* 3.0 x)) z))
assert(x < y && y < z);
double code(double x, double y, double z) {
return (y * (3.0 * x)) - z;
}
NOTE: x, y, and z should be sorted in increasing order before calling this function.
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
code = (y * (3.0d0 * x)) - z
end function
assert x < y && y < z;
public static double code(double x, double y, double z) {
return (y * (3.0 * x)) - z;
}
[x, y, z] = sort([x, y, z]) def code(x, y, z): return (y * (3.0 * x)) - z
x, y, z = sort([x, y, z]) function code(x, y, z) return Float64(Float64(y * Float64(3.0 * x)) - z) end
x, y, z = num2cell(sort([x, y, z])){:}
function tmp = code(x, y, z)
tmp = (y * (3.0 * x)) - z;
end
NOTE: x, y, and z should be sorted in increasing order before calling this function. code[x_, y_, z_] := N[(N[(y * N[(3.0 * x), $MachinePrecision]), $MachinePrecision] - z), $MachinePrecision]
\begin{array}{l}
[x, y, z] = \mathsf{sort}([x, y, z])\\
\\
y \cdot \left(3 \cdot x\right) - z
\end{array}
Initial program 99.8%
Final simplification99.8%
NOTE: x, y, and z should be sorted in increasing order before calling this function. (FPCore (x y z) :precision binary64 (let* ((t_0 (* y (* 3.0 x)))) (if (<= t_0 -4e+73) t_0 (if (<= t_0 1e-89) (- z) (* (* y x) 3.0)))))
assert(x < y && y < z);
double code(double x, double y, double z) {
double t_0 = y * (3.0 * x);
double tmp;
if (t_0 <= -4e+73) {
tmp = t_0;
} else if (t_0 <= 1e-89) {
tmp = -z;
} else {
tmp = (y * x) * 3.0;
}
return tmp;
}
NOTE: x, y, and z should be sorted in increasing order before calling this function.
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 * (3.0d0 * x)
if (t_0 <= (-4d+73)) then
tmp = t_0
else if (t_0 <= 1d-89) then
tmp = -z
else
tmp = (y * x) * 3.0d0
end if
code = tmp
end function
assert x < y && y < z;
public static double code(double x, double y, double z) {
double t_0 = y * (3.0 * x);
double tmp;
if (t_0 <= -4e+73) {
tmp = t_0;
} else if (t_0 <= 1e-89) {
tmp = -z;
} else {
tmp = (y * x) * 3.0;
}
return tmp;
}
[x, y, z] = sort([x, y, z]) def code(x, y, z): t_0 = y * (3.0 * x) tmp = 0 if t_0 <= -4e+73: tmp = t_0 elif t_0 <= 1e-89: tmp = -z else: tmp = (y * x) * 3.0 return tmp
x, y, z = sort([x, y, z]) function code(x, y, z) t_0 = Float64(y * Float64(3.0 * x)) tmp = 0.0 if (t_0 <= -4e+73) tmp = t_0; elseif (t_0 <= 1e-89) tmp = Float64(-z); else tmp = Float64(Float64(y * x) * 3.0); end return tmp end
x, y, z = num2cell(sort([x, y, z])){:}
function tmp_2 = code(x, y, z)
t_0 = y * (3.0 * x);
tmp = 0.0;
if (t_0 <= -4e+73)
tmp = t_0;
elseif (t_0 <= 1e-89)
tmp = -z;
else
tmp = (y * x) * 3.0;
end
tmp_2 = tmp;
end
NOTE: x, y, and z should be sorted in increasing order before calling this function.
code[x_, y_, z_] := Block[{t$95$0 = N[(y * N[(3.0 * x), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[t$95$0, -4e+73], t$95$0, If[LessEqual[t$95$0, 1e-89], (-z), N[(N[(y * x), $MachinePrecision] * 3.0), $MachinePrecision]]]]
\begin{array}{l}
[x, y, z] = \mathsf{sort}([x, y, z])\\
\\
\begin{array}{l}
t_0 := y \cdot \left(3 \cdot x\right)\\
\mathbf{if}\;t\_0 \leq -4 \cdot 10^{+73}:\\
\;\;\;\;t\_0\\
\mathbf{elif}\;t\_0 \leq 10^{-89}:\\
\;\;\;\;-z\\
\mathbf{else}:\\
\;\;\;\;\left(y \cdot x\right) \cdot 3\\
\end{array}
\end{array}
if (*.f64 (*.f64 x #s(literal 3 binary64)) y) < -3.99999999999999993e73Initial program 99.8%
Taylor expanded in z around 0
*-commutativeN/A
lower-*.f64N/A
*-commutativeN/A
lower-*.f6488.8
Applied rewrites88.8%
Applied rewrites88.8%
if -3.99999999999999993e73 < (*.f64 (*.f64 x #s(literal 3 binary64)) y) < 1.00000000000000004e-89Initial program 99.9%
Taylor expanded in z around inf
mul-1-negN/A
lower-neg.f6482.4
Applied rewrites82.4%
if 1.00000000000000004e-89 < (*.f64 (*.f64 x #s(literal 3 binary64)) y) Initial program 99.6%
Taylor expanded in z around 0
*-commutativeN/A
lower-*.f64N/A
*-commutativeN/A
lower-*.f6477.0
Applied rewrites77.0%
Final simplification81.7%
NOTE: x, y, and z should be sorted in increasing order before calling this function. (FPCore (x y z) :precision binary64 (let* ((t_0 (* y (* 3.0 x)))) (if (<= t_0 -4e+73) t_0 (if (<= t_0 1e-89) (- z) t_0))))
assert(x < y && y < z);
double code(double x, double y, double z) {
double t_0 = y * (3.0 * x);
double tmp;
if (t_0 <= -4e+73) {
tmp = t_0;
} else if (t_0 <= 1e-89) {
tmp = -z;
} else {
tmp = t_0;
}
return tmp;
}
NOTE: x, y, and z should be sorted in increasing order before calling this function.
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 * (3.0d0 * x)
if (t_0 <= (-4d+73)) then
tmp = t_0
else if (t_0 <= 1d-89) then
tmp = -z
else
tmp = t_0
end if
code = tmp
end function
assert x < y && y < z;
public static double code(double x, double y, double z) {
double t_0 = y * (3.0 * x);
double tmp;
if (t_0 <= -4e+73) {
tmp = t_0;
} else if (t_0 <= 1e-89) {
tmp = -z;
} else {
tmp = t_0;
}
return tmp;
}
[x, y, z] = sort([x, y, z]) def code(x, y, z): t_0 = y * (3.0 * x) tmp = 0 if t_0 <= -4e+73: tmp = t_0 elif t_0 <= 1e-89: tmp = -z else: tmp = t_0 return tmp
x, y, z = sort([x, y, z]) function code(x, y, z) t_0 = Float64(y * Float64(3.0 * x)) tmp = 0.0 if (t_0 <= -4e+73) tmp = t_0; elseif (t_0 <= 1e-89) tmp = Float64(-z); else tmp = t_0; end return tmp end
x, y, z = num2cell(sort([x, y, z])){:}
function tmp_2 = code(x, y, z)
t_0 = y * (3.0 * x);
tmp = 0.0;
if (t_0 <= -4e+73)
tmp = t_0;
elseif (t_0 <= 1e-89)
tmp = -z;
else
tmp = t_0;
end
tmp_2 = tmp;
end
NOTE: x, y, and z should be sorted in increasing order before calling this function.
code[x_, y_, z_] := Block[{t$95$0 = N[(y * N[(3.0 * x), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[t$95$0, -4e+73], t$95$0, If[LessEqual[t$95$0, 1e-89], (-z), t$95$0]]]
\begin{array}{l}
[x, y, z] = \mathsf{sort}([x, y, z])\\
\\
\begin{array}{l}
t_0 := y \cdot \left(3 \cdot x\right)\\
\mathbf{if}\;t\_0 \leq -4 \cdot 10^{+73}:\\
\;\;\;\;t\_0\\
\mathbf{elif}\;t\_0 \leq 10^{-89}:\\
\;\;\;\;-z\\
\mathbf{else}:\\
\;\;\;\;t\_0\\
\end{array}
\end{array}
if (*.f64 (*.f64 x #s(literal 3 binary64)) y) < -3.99999999999999993e73 or 1.00000000000000004e-89 < (*.f64 (*.f64 x #s(literal 3 binary64)) y) Initial program 99.7%
Taylor expanded in z around 0
*-commutativeN/A
lower-*.f64N/A
*-commutativeN/A
lower-*.f6481.0
Applied rewrites81.0%
Applied rewrites80.9%
if -3.99999999999999993e73 < (*.f64 (*.f64 x #s(literal 3 binary64)) y) < 1.00000000000000004e-89Initial program 99.9%
Taylor expanded in z around inf
mul-1-negN/A
lower-neg.f6482.4
Applied rewrites82.4%
Final simplification81.6%
NOTE: x, y, and z should be sorted in increasing order before calling this function. (FPCore (x y z) :precision binary64 (- z))
assert(x < y && y < z);
double code(double x, double y, double z) {
return -z;
}
NOTE: x, y, and z should be sorted in increasing order before calling this function.
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
assert x < y && y < z;
public static double code(double x, double y, double z) {
return -z;
}
[x, y, z] = sort([x, y, z]) def code(x, y, z): return -z
x, y, z = sort([x, y, z]) function code(x, y, z) return Float64(-z) end
x, y, z = num2cell(sort([x, y, z])){:}
function tmp = code(x, y, z)
tmp = -z;
end
NOTE: x, y, and z should be sorted in increasing order before calling this function. code[x_, y_, z_] := (-z)
\begin{array}{l}
[x, y, z] = \mathsf{sort}([x, y, z])\\
\\
-z
\end{array}
Initial program 99.8%
Taylor expanded in z around inf
mul-1-negN/A
lower-neg.f6450.0
Applied rewrites50.0%
NOTE: x, y, and z should be sorted in increasing order before calling this function. (FPCore (x y z) :precision binary64 z)
assert(x < y && y < z);
double code(double x, double y, double z) {
return z;
}
NOTE: x, y, and z should be sorted in increasing order before calling this function.
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
assert x < y && y < z;
public static double code(double x, double y, double z) {
return z;
}
[x, y, z] = sort([x, y, z]) def code(x, y, z): return z
x, y, z = sort([x, y, z]) function code(x, y, z) return z end
x, y, z = num2cell(sort([x, y, z])){:}
function tmp = code(x, y, z)
tmp = z;
end
NOTE: x, y, and z should be sorted in increasing order before calling this function. code[x_, y_, z_] := z
\begin{array}{l}
[x, y, z] = \mathsf{sort}([x, y, z])\\
\\
z
\end{array}
Initial program 99.8%
Taylor expanded in z around inf
mul-1-negN/A
lower-neg.f6450.0
Applied rewrites50.0%
Applied rewrites2.3%
(FPCore (x y z) :precision binary64 (- (* x (* 3.0 y)) z))
double code(double x, double y, double z) {
return (x * (3.0 * y)) - 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 * (3.0d0 * y)) - z
end function
public static double code(double x, double y, double z) {
return (x * (3.0 * y)) - z;
}
def code(x, y, z): return (x * (3.0 * y)) - z
function code(x, y, z) return Float64(Float64(x * Float64(3.0 * y)) - z) end
function tmp = code(x, y, z) tmp = (x * (3.0 * y)) - z; end
code[x_, y_, z_] := N[(N[(x * N[(3.0 * y), $MachinePrecision]), $MachinePrecision] - z), $MachinePrecision]
\begin{array}{l}
\\
x \cdot \left(3 \cdot y\right) - z
\end{array}
herbie shell --seed 2024244
(FPCore (x y z)
:name "Diagrams.Solve.Polynomial:cubForm from diagrams-solve-0.1, B"
:precision binary64
:alt
(! :herbie-platform default (- (* x (* 3 y)) z))
(- (* (* x 3.0) y) z))