
(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 6 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 (- (* x (* 3.0 y)) z))
assert(x < y && y < z);
double code(double x, double y, double z) {
return (x * (3.0 * y)) - 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 = (x * (3.0d0 * y)) - z
end function
assert x < y && y < z;
public static double code(double x, double y, double z) {
return (x * (3.0 * y)) - z;
}
[x, y, z] = sort([x, y, z]) def code(x, y, z): return (x * (3.0 * y)) - z
x, y, z = sort([x, y, z]) function code(x, y, z) return Float64(Float64(x * Float64(3.0 * y)) - z) end
x, y, z = num2cell(sort([x, y, z])){:}
function tmp = code(x, y, z)
tmp = (x * (3.0 * y)) - z;
end
NOTE: x, y, and z should be sorted in increasing order before calling this function. code[x_, y_, z_] := N[(N[(x * N[(3.0 * y), $MachinePrecision]), $MachinePrecision] - z), $MachinePrecision]
\begin{array}{l}
[x, y, z] = \mathsf{sort}([x, y, z])\\
\\
x \cdot \left(3 \cdot y\right) - z
\end{array}
Initial program 99.9%
lift-*.f64N/A
lift-*.f64N/A
associate-*l*N/A
*-commutativeN/A
lower-*.f64N/A
*-commutativeN/A
lower-*.f6499.9
Applied rewrites99.9%
Final simplification99.9%
NOTE: x, y, and z should be sorted in increasing order before calling this function. (FPCore (x y z) :precision binary64 (let* ((t_0 (* (* x 3.0) y)) (t_1 (* x (* 3.0 y)))) (if (<= t_0 -10000000000.0) t_1 (if (<= t_0 1e+102) (- z) t_1))))
assert(x < y && y < z);
double code(double x, double y, double z) {
double t_0 = (x * 3.0) * y;
double t_1 = x * (3.0 * y);
double tmp;
if (t_0 <= -10000000000.0) {
tmp = t_1;
} else if (t_0 <= 1e+102) {
tmp = -z;
} else {
tmp = t_1;
}
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) :: t_1
real(8) :: tmp
t_0 = (x * 3.0d0) * y
t_1 = x * (3.0d0 * y)
if (t_0 <= (-10000000000.0d0)) then
tmp = t_1
else if (t_0 <= 1d+102) then
tmp = -z
else
tmp = t_1
end if
code = tmp
end function
assert x < y && y < z;
public static double code(double x, double y, double z) {
double t_0 = (x * 3.0) * y;
double t_1 = x * (3.0 * y);
double tmp;
if (t_0 <= -10000000000.0) {
tmp = t_1;
} else if (t_0 <= 1e+102) {
tmp = -z;
} else {
tmp = t_1;
}
return tmp;
}
[x, y, z] = sort([x, y, z]) def code(x, y, z): t_0 = (x * 3.0) * y t_1 = x * (3.0 * y) tmp = 0 if t_0 <= -10000000000.0: tmp = t_1 elif t_0 <= 1e+102: tmp = -z else: tmp = t_1 return tmp
x, y, z = sort([x, y, z]) function code(x, y, z) t_0 = Float64(Float64(x * 3.0) * y) t_1 = Float64(x * Float64(3.0 * y)) tmp = 0.0 if (t_0 <= -10000000000.0) tmp = t_1; elseif (t_0 <= 1e+102) tmp = Float64(-z); else tmp = t_1; end return tmp end
x, y, z = num2cell(sort([x, y, z])){:}
function tmp_2 = code(x, y, z)
t_0 = (x * 3.0) * y;
t_1 = x * (3.0 * y);
tmp = 0.0;
if (t_0 <= -10000000000.0)
tmp = t_1;
elseif (t_0 <= 1e+102)
tmp = -z;
else
tmp = t_1;
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[(N[(x * 3.0), $MachinePrecision] * y), $MachinePrecision]}, Block[{t$95$1 = N[(x * N[(3.0 * y), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[t$95$0, -10000000000.0], t$95$1, If[LessEqual[t$95$0, 1e+102], (-z), t$95$1]]]]
\begin{array}{l}
[x, y, z] = \mathsf{sort}([x, y, z])\\
\\
\begin{array}{l}
t_0 := \left(x \cdot 3\right) \cdot y\\
t_1 := x \cdot \left(3 \cdot y\right)\\
\mathbf{if}\;t\_0 \leq -10000000000:\\
\;\;\;\;t\_1\\
\mathbf{elif}\;t\_0 \leq 10^{+102}:\\
\;\;\;\;-z\\
\mathbf{else}:\\
\;\;\;\;t\_1\\
\end{array}
\end{array}
if (*.f64 (*.f64 x #s(literal 3 binary64)) y) < -1e10 or 9.99999999999999977e101 < (*.f64 (*.f64 x #s(literal 3 binary64)) y) Initial program 99.8%
Taylor expanded in z around 0
*-commutativeN/A
lower-*.f64N/A
*-commutativeN/A
lower-*.f6487.0
Applied rewrites87.0%
Applied rewrites87.1%
if -1e10 < (*.f64 (*.f64 x #s(literal 3 binary64)) y) < 9.99999999999999977e101Initial program 100.0%
Taylor expanded in z around inf
mul-1-negN/A
lower-neg.f6480.7
Applied rewrites80.7%
Final simplification83.2%
NOTE: x, y, and z should be sorted in increasing order before calling this function. (FPCore (x y z) :precision binary64 (let* ((t_0 (* (* x 3.0) y))) (if (<= t_0 -10000000000.0) t_0 (if (<= t_0 1e+102) (- z) t_0))))
assert(x < y && y < z);
double code(double x, double y, double z) {
double t_0 = (x * 3.0) * y;
double tmp;
if (t_0 <= -10000000000.0) {
tmp = t_0;
} else if (t_0 <= 1e+102) {
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 = (x * 3.0d0) * y
if (t_0 <= (-10000000000.0d0)) then
tmp = t_0
else if (t_0 <= 1d+102) 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 = (x * 3.0) * y;
double tmp;
if (t_0 <= -10000000000.0) {
tmp = t_0;
} else if (t_0 <= 1e+102) {
tmp = -z;
} else {
tmp = t_0;
}
return tmp;
}
[x, y, z] = sort([x, y, z]) def code(x, y, z): t_0 = (x * 3.0) * y tmp = 0 if t_0 <= -10000000000.0: tmp = t_0 elif t_0 <= 1e+102: tmp = -z else: tmp = t_0 return tmp
x, y, z = sort([x, y, z]) function code(x, y, z) t_0 = Float64(Float64(x * 3.0) * y) tmp = 0.0 if (t_0 <= -10000000000.0) tmp = t_0; elseif (t_0 <= 1e+102) 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 = (x * 3.0) * y;
tmp = 0.0;
if (t_0 <= -10000000000.0)
tmp = t_0;
elseif (t_0 <= 1e+102)
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[(N[(x * 3.0), $MachinePrecision] * y), $MachinePrecision]}, If[LessEqual[t$95$0, -10000000000.0], t$95$0, If[LessEqual[t$95$0, 1e+102], (-z), t$95$0]]]
\begin{array}{l}
[x, y, z] = \mathsf{sort}([x, y, z])\\
\\
\begin{array}{l}
t_0 := \left(x \cdot 3\right) \cdot y\\
\mathbf{if}\;t\_0 \leq -10000000000:\\
\;\;\;\;t\_0\\
\mathbf{elif}\;t\_0 \leq 10^{+102}:\\
\;\;\;\;-z\\
\mathbf{else}:\\
\;\;\;\;t\_0\\
\end{array}
\end{array}
if (*.f64 (*.f64 x #s(literal 3 binary64)) y) < -1e10 or 9.99999999999999977e101 < (*.f64 (*.f64 x #s(literal 3 binary64)) y) Initial program 99.8%
Taylor expanded in z around 0
*-commutativeN/A
lower-*.f64N/A
*-commutativeN/A
lower-*.f6487.0
Applied rewrites87.0%
Applied rewrites87.1%
if -1e10 < (*.f64 (*.f64 x #s(literal 3 binary64)) y) < 9.99999999999999977e101Initial program 100.0%
Taylor expanded in z around inf
mul-1-negN/A
lower-neg.f6480.7
Applied rewrites80.7%
Final simplification83.2%
NOTE: x, y, and z should be sorted in increasing order before calling this function. (FPCore (x y z) :precision binary64 (- (* (* x 3.0) y) z))
assert(x < y && y < z);
double code(double x, double y, double z) {
return ((x * 3.0) * y) - 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 = ((x * 3.0d0) * y) - z
end function
assert x < y && y < z;
public static double code(double x, double y, double z) {
return ((x * 3.0) * y) - z;
}
[x, y, z] = sort([x, y, z]) def code(x, y, z): return ((x * 3.0) * y) - z
x, y, z = sort([x, y, z]) function code(x, y, z) return Float64(Float64(Float64(x * 3.0) * y) - z) end
x, y, z = num2cell(sort([x, y, z])){:}
function tmp = code(x, y, z)
tmp = ((x * 3.0) * y) - z;
end
NOTE: x, y, and z should be sorted in increasing order before calling this function. code[x_, y_, z_] := N[(N[(N[(x * 3.0), $MachinePrecision] * y), $MachinePrecision] - z), $MachinePrecision]
\begin{array}{l}
[x, y, z] = \mathsf{sort}([x, y, z])\\
\\
\left(x \cdot 3\right) \cdot y - z
\end{array}
Initial program 99.9%
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 99.9%
Taylor expanded in z around inf
mul-1-negN/A
lower-neg.f6455.4
Applied rewrites55.4%
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 99.9%
Taylor expanded in z around inf
mul-1-negN/A
lower-neg.f6455.4
Applied rewrites55.4%
Applied rewrites2.0%
(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 2024254
(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))