
(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 7 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}
(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}
Initial program 99.9%
(FPCore (x y z) :precision binary64 (if (or (<= x -215.0) (not (<= x 7.2e-121))) (* 3.0 (* x y)) (- z)))
double code(double x, double y, double z) {
double tmp;
if ((x <= -215.0) || !(x <= 7.2e-121)) {
tmp = 3.0 * (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 <= (-215.0d0)) .or. (.not. (x <= 7.2d-121))) then
tmp = 3.0d0 * (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 <= -215.0) || !(x <= 7.2e-121)) {
tmp = 3.0 * (x * y);
} else {
tmp = -z;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (x <= -215.0) or not (x <= 7.2e-121): tmp = 3.0 * (x * y) else: tmp = -z return tmp
function code(x, y, z) tmp = 0.0 if ((x <= -215.0) || !(x <= 7.2e-121)) tmp = Float64(3.0 * Float64(x * y)); else tmp = Float64(-z); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((x <= -215.0) || ~((x <= 7.2e-121))) tmp = 3.0 * (x * y); else tmp = -z; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[x, -215.0], N[Not[LessEqual[x, 7.2e-121]], $MachinePrecision]], N[(3.0 * N[(x * y), $MachinePrecision]), $MachinePrecision], (-z)]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -215 \lor \neg \left(x \leq 7.2 \cdot 10^{-121}\right):\\
\;\;\;\;3 \cdot \left(x \cdot y\right)\\
\mathbf{else}:\\
\;\;\;\;-z\\
\end{array}
\end{array}
if x < -215 or 7.19999999999999967e-121 < x Initial program 99.9%
associate-*l*99.8%
Simplified99.8%
Taylor expanded in x around 0 99.8%
Taylor expanded in x around inf 66.2%
if -215 < x < 7.19999999999999967e-121Initial program 99.9%
associate-*l*99.9%
Simplified99.9%
Taylor expanded in x around 0 69.8%
neg-mul-169.8%
Simplified69.8%
Final simplification67.7%
(FPCore (x y z) :precision binary64 (if (<= x -1800.0) (* x (* 3.0 y)) (if (<= x 7.6e-121) (- z) (* 3.0 (* x y)))))
double code(double x, double y, double z) {
double tmp;
if (x <= -1800.0) {
tmp = x * (3.0 * y);
} else if (x <= 7.6e-121) {
tmp = -z;
} else {
tmp = 3.0 * (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 <= (-1800.0d0)) then
tmp = x * (3.0d0 * y)
else if (x <= 7.6d-121) then
tmp = -z
else
tmp = 3.0d0 * (x * y)
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if (x <= -1800.0) {
tmp = x * (3.0 * y);
} else if (x <= 7.6e-121) {
tmp = -z;
} else {
tmp = 3.0 * (x * y);
}
return tmp;
}
def code(x, y, z): tmp = 0 if x <= -1800.0: tmp = x * (3.0 * y) elif x <= 7.6e-121: tmp = -z else: tmp = 3.0 * (x * y) return tmp
function code(x, y, z) tmp = 0.0 if (x <= -1800.0) tmp = Float64(x * Float64(3.0 * y)); elseif (x <= 7.6e-121) tmp = Float64(-z); else tmp = Float64(3.0 * Float64(x * y)); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if (x <= -1800.0) tmp = x * (3.0 * y); elseif (x <= 7.6e-121) tmp = -z; else tmp = 3.0 * (x * y); end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[x, -1800.0], N[(x * N[(3.0 * y), $MachinePrecision]), $MachinePrecision], If[LessEqual[x, 7.6e-121], (-z), N[(3.0 * N[(x * y), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -1800:\\
\;\;\;\;x \cdot \left(3 \cdot y\right)\\
\mathbf{elif}\;x \leq 7.6 \cdot 10^{-121}:\\
\;\;\;\;-z\\
\mathbf{else}:\\
\;\;\;\;3 \cdot \left(x \cdot y\right)\\
\end{array}
\end{array}
if x < -1800Initial program 99.9%
associate-*l*99.8%
Simplified99.8%
Taylor expanded in x around 0 99.8%
Taylor expanded in x around inf 68.8%
associate-*r*68.8%
*-commutative68.8%
associate-*r*68.8%
Simplified68.8%
if -1800 < x < 7.6000000000000002e-121Initial program 99.9%
associate-*l*99.9%
Simplified99.9%
Taylor expanded in x around 0 69.8%
neg-mul-169.8%
Simplified69.8%
if 7.6000000000000002e-121 < x Initial program 99.9%
associate-*l*99.8%
Simplified99.8%
Taylor expanded in x around 0 99.8%
Taylor expanded in x around inf 64.8%
(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}
Initial program 99.9%
associate-*l*99.8%
Simplified99.8%
(FPCore (x y z) :precision binary64 (- (* 3.0 (* x y)) z))
double code(double x, double y, double z) {
return (3.0 * (x * 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 = (3.0d0 * (x * y)) - z
end function
public static double code(double x, double y, double z) {
return (3.0 * (x * y)) - z;
}
def code(x, y, z): return (3.0 * (x * y)) - z
function code(x, y, z) return Float64(Float64(3.0 * Float64(x * y)) - z) end
function tmp = code(x, y, z) tmp = (3.0 * (x * y)) - z; end
code[x_, y_, z_] := N[(N[(3.0 * N[(x * y), $MachinePrecision]), $MachinePrecision] - z), $MachinePrecision]
\begin{array}{l}
\\
3 \cdot \left(x \cdot y\right) - z
\end{array}
Initial program 99.9%
associate-*l*99.8%
Simplified99.8%
Taylor expanded in x around 0 99.8%
(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 99.9%
associate-*l*99.8%
Simplified99.8%
Taylor expanded in x around 0 49.7%
neg-mul-149.7%
Simplified49.7%
(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 z end
function tmp = code(x, y, z) tmp = z; end
code[x_, y_, z_] := z
\begin{array}{l}
\\
z
\end{array}
Initial program 99.9%
associate-*l*99.8%
Simplified99.8%
Taylor expanded in x around 0 49.7%
neg-mul-149.7%
Simplified49.7%
neg-sub049.7%
sub-neg49.7%
add-sqr-sqrt24.3%
sqrt-unprod18.1%
sqr-neg18.1%
sqrt-unprod1.0%
add-sqr-sqrt2.2%
Applied egg-rr2.2%
+-lft-identity2.2%
Simplified2.2%
(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 2024146
(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))