
(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 (- (* (* 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 99.8%
NOTE: x, y, and z should be sorted in increasing order before calling this function. (FPCore (x y z) :precision binary64 (if (or (<= z -5.1e-18) (not (<= z 1.9e+50))) (- z) (* 3.0 (* x y))))
assert(x < y && y < z);
double code(double x, double y, double z) {
double tmp;
if ((z <= -5.1e-18) || !(z <= 1.9e+50)) {
tmp = -z;
} else {
tmp = 3.0 * (x * y);
}
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) :: tmp
if ((z <= (-5.1d-18)) .or. (.not. (z <= 1.9d+50))) then
tmp = -z
else
tmp = 3.0d0 * (x * y)
end if
code = tmp
end function
assert x < y && y < z;
public static double code(double x, double y, double z) {
double tmp;
if ((z <= -5.1e-18) || !(z <= 1.9e+50)) {
tmp = -z;
} else {
tmp = 3.0 * (x * y);
}
return tmp;
}
[x, y, z] = sort([x, y, z]) def code(x, y, z): tmp = 0 if (z <= -5.1e-18) or not (z <= 1.9e+50): tmp = -z else: tmp = 3.0 * (x * y) return tmp
x, y, z = sort([x, y, z]) function code(x, y, z) tmp = 0.0 if ((z <= -5.1e-18) || !(z <= 1.9e+50)) tmp = Float64(-z); else tmp = Float64(3.0 * Float64(x * y)); end return tmp end
x, y, z = num2cell(sort([x, y, z])){:}
function tmp_2 = code(x, y, z)
tmp = 0.0;
if ((z <= -5.1e-18) || ~((z <= 1.9e+50)))
tmp = -z;
else
tmp = 3.0 * (x * y);
end
tmp_2 = tmp;
end
NOTE: x, y, and z should be sorted in increasing order before calling this function. code[x_, y_, z_] := If[Or[LessEqual[z, -5.1e-18], N[Not[LessEqual[z, 1.9e+50]], $MachinePrecision]], (-z), N[(3.0 * N[(x * y), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
[x, y, z] = \mathsf{sort}([x, y, z])\\
\\
\begin{array}{l}
\mathbf{if}\;z \leq -5.1 \cdot 10^{-18} \lor \neg \left(z \leq 1.9 \cdot 10^{+50}\right):\\
\;\;\;\;-z\\
\mathbf{else}:\\
\;\;\;\;3 \cdot \left(x \cdot y\right)\\
\end{array}
\end{array}
if z < -5.09999999999999983e-18 or 1.89999999999999994e50 < z Initial program 100.0%
associate-*l*100.0%
Simplified100.0%
Taylor expanded in x around 0 77.0%
mul-1-neg77.0%
Simplified77.0%
if -5.09999999999999983e-18 < z < 1.89999999999999994e50Initial program 99.7%
associate-*l*99.7%
Simplified99.7%
Taylor expanded in x around inf 99.7%
+-commutative99.7%
mul-1-neg99.7%
unsub-neg99.7%
Simplified99.7%
Taylor expanded in x around inf 73.2%
Final simplification75.1%
NOTE: x, y, and z should be sorted in increasing order before calling this function. (FPCore (x y z) :precision binary64 (- (* 3.0 (* x y)) z))
assert(x < y && y < z);
double code(double x, double y, double z) {
return (3.0 * (x * 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 = (3.0d0 * (x * y)) - z
end function
assert x < y && y < z;
public static double code(double x, double y, double z) {
return (3.0 * (x * y)) - z;
}
[x, y, z] = sort([x, y, z]) def code(x, y, z): return (3.0 * (x * y)) - z
x, y, z = sort([x, y, z]) function code(x, y, z) return Float64(Float64(3.0 * Float64(x * y)) - z) end
x, y, z = num2cell(sort([x, y, z])){:}
function tmp = code(x, y, z)
tmp = (3.0 * (x * y)) - z;
end
NOTE: x, y, and z should be sorted in increasing order before calling this function. code[x_, y_, z_] := N[(N[(3.0 * N[(x * y), $MachinePrecision]), $MachinePrecision] - z), $MachinePrecision]
\begin{array}{l}
[x, y, z] = \mathsf{sort}([x, y, z])\\
\\
3 \cdot \left(x \cdot y\right) - z
\end{array}
Initial program 99.8%
associate-*l*99.8%
Simplified99.8%
Taylor expanded in x around 0 99.8%
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%
associate-*l*99.8%
Simplified99.8%
Taylor expanded in x around 0 51.5%
mul-1-neg51.5%
Simplified51.5%
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%
associate-*l*99.8%
Simplified99.8%
Taylor expanded in x around 0 51.5%
mul-1-neg51.5%
Simplified51.5%
neg-sub051.5%
sub-neg51.5%
add-sqr-sqrt26.7%
sqrt-unprod17.5%
sqr-neg17.5%
sqrt-unprod1.1%
add-sqr-sqrt2.3%
Applied egg-rr2.3%
+-lft-identity2.3%
Simplified2.3%
(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 2024145
(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))