
(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 99.4%
associate-*l*99.8%
Simplified99.8%
NOTE: x, y, and z should be sorted in increasing order before calling this function. (FPCore (x y z) :precision binary64 (if (or (<= z -9.1e-38) (not (<= z 8.6e-13))) (- z) (* x (* 3.0 y))))
assert(x < y && y < z);
double code(double x, double y, double z) {
double tmp;
if ((z <= -9.1e-38) || !(z <= 8.6e-13)) {
tmp = -z;
} else {
tmp = x * (3.0 * 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 <= (-9.1d-38)) .or. (.not. (z <= 8.6d-13))) then
tmp = -z
else
tmp = x * (3.0d0 * 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 <= -9.1e-38) || !(z <= 8.6e-13)) {
tmp = -z;
} else {
tmp = x * (3.0 * y);
}
return tmp;
}
[x, y, z] = sort([x, y, z]) def code(x, y, z): tmp = 0 if (z <= -9.1e-38) or not (z <= 8.6e-13): tmp = -z else: tmp = x * (3.0 * y) return tmp
x, y, z = sort([x, y, z]) function code(x, y, z) tmp = 0.0 if ((z <= -9.1e-38) || !(z <= 8.6e-13)) tmp = Float64(-z); else tmp = Float64(x * Float64(3.0 * 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 <= -9.1e-38) || ~((z <= 8.6e-13)))
tmp = -z;
else
tmp = x * (3.0 * 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, -9.1e-38], N[Not[LessEqual[z, 8.6e-13]], $MachinePrecision]], (-z), N[(x * N[(3.0 * y), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
[x, y, z] = \mathsf{sort}([x, y, z])\\
\\
\begin{array}{l}
\mathbf{if}\;z \leq -9.1 \cdot 10^{-38} \lor \neg \left(z \leq 8.6 \cdot 10^{-13}\right):\\
\;\;\;\;-z\\
\mathbf{else}:\\
\;\;\;\;x \cdot \left(3 \cdot y\right)\\
\end{array}
\end{array}
if z < -9.10000000000000012e-38 or 8.5999999999999997e-13 < z Initial program 99.2%
associate-*l*99.9%
Simplified99.9%
Taylor expanded in x around 0 71.3%
neg-mul-171.3%
Simplified71.3%
if -9.10000000000000012e-38 < z < 8.5999999999999997e-13Initial program 99.7%
associate-*l*99.6%
Simplified99.6%
associate-*r*99.7%
*-commutative99.7%
associate-*r*99.6%
fma-neg99.6%
Applied egg-rr99.6%
Taylor expanded in y around inf 79.2%
associate-*r*79.3%
*-commutative79.3%
associate-*r*79.3%
Simplified79.3%
Final simplification74.9%
NOTE: x, y, and z should be sorted in increasing order before calling this function. (FPCore (x y z) :precision binary64 (if (or (<= z -9.2e-38) (not (<= z 5.4e-14))) (- z) (* 3.0 (* x y))))
assert(x < y && y < z);
double code(double x, double y, double z) {
double tmp;
if ((z <= -9.2e-38) || !(z <= 5.4e-14)) {
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 <= (-9.2d-38)) .or. (.not. (z <= 5.4d-14))) 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 <= -9.2e-38) || !(z <= 5.4e-14)) {
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 <= -9.2e-38) or not (z <= 5.4e-14): 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 <= -9.2e-38) || !(z <= 5.4e-14)) 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 <= -9.2e-38) || ~((z <= 5.4e-14)))
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, -9.2e-38], N[Not[LessEqual[z, 5.4e-14]], $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 -9.2 \cdot 10^{-38} \lor \neg \left(z \leq 5.4 \cdot 10^{-14}\right):\\
\;\;\;\;-z\\
\mathbf{else}:\\
\;\;\;\;3 \cdot \left(x \cdot y\right)\\
\end{array}
\end{array}
if z < -9.20000000000000007e-38 or 5.3999999999999997e-14 < z Initial program 99.2%
associate-*l*99.9%
Simplified99.9%
Taylor expanded in x around 0 71.3%
neg-mul-171.3%
Simplified71.3%
if -9.20000000000000007e-38 < z < 5.3999999999999997e-14Initial program 99.7%
associate-*l*99.6%
Simplified99.6%
associate-*r*99.7%
*-commutative99.7%
associate-*r*99.6%
fma-neg99.6%
Applied egg-rr99.6%
Taylor expanded in y around inf 79.2%
Final simplification74.9%
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 99.4%
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 99.4%
associate-*l*99.8%
Simplified99.8%
Taylor expanded in x around 0 49.7%
neg-mul-149.7%
Simplified49.7%
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 99.4%
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-sqrt28.7%
sqrt-unprod17.1%
sqr-neg17.1%
sqrt-unprod1.0%
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 2024116
(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))