
(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}
NOTE: x, y, and z should be sorted in increasing order before calling this function. (FPCore (x y z) :precision binary64 (fma (* 3.0 y) x (- z)))
assert(x < y && y < z);
double code(double x, double y, double z) {
return fma((3.0 * y), x, -z);
}
x, y, z = sort([x, y, z]) function code(x, y, z) return fma(Float64(3.0 * y), x, Float64(-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 * y), $MachinePrecision] * x + (-z)), $MachinePrecision]
\begin{array}{l}
[x, y, z] = \mathsf{sort}([x, y, z])\\
\\
\mathsf{fma}\left(3 \cdot y, x, -z\right)
\end{array}
NOTE: x, y, and z should be sorted in increasing order before calling this function. (FPCore (x y z) :precision binary64 (if (or (<= z -0.000195) (not (<= z 4.6e+42))) (- z) (* 3.0 (* y x))))
assert(x < y && y < z);
double code(double x, double y, double z) {
double tmp;
if ((z <= -0.000195) || !(z <= 4.6e+42)) {
tmp = -z;
} else {
tmp = 3.0 * (y * x);
}
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 <= (-0.000195d0)) .or. (.not. (z <= 4.6d+42))) then
tmp = -z
else
tmp = 3.0d0 * (y * x)
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 <= -0.000195) || !(z <= 4.6e+42)) {
tmp = -z;
} else {
tmp = 3.0 * (y * x);
}
return tmp;
}
[x, y, z] = sort([x, y, z]) def code(x, y, z): tmp = 0 if (z <= -0.000195) or not (z <= 4.6e+42): tmp = -z else: tmp = 3.0 * (y * x) return tmp
x, y, z = sort([x, y, z]) function code(x, y, z) tmp = 0.0 if ((z <= -0.000195) || !(z <= 4.6e+42)) tmp = Float64(-z); else tmp = Float64(3.0 * Float64(y * x)); end return tmp end
x, y, z = num2cell(sort([x, y, z])){:}
function tmp_2 = code(x, y, z)
tmp = 0.0;
if ((z <= -0.000195) || ~((z <= 4.6e+42)))
tmp = -z;
else
tmp = 3.0 * (y * x);
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, -0.000195], N[Not[LessEqual[z, 4.6e+42]], $MachinePrecision]], (-z), N[(3.0 * N[(y * x), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
[x, y, z] = \mathsf{sort}([x, y, z])\\
\\
\begin{array}{l}
\mathbf{if}\;z \leq -0.000195 \lor \neg \left(z \leq 4.6 \cdot 10^{+42}\right):\\
\;\;\;\;-z\\
\mathbf{else}:\\
\;\;\;\;3 \cdot \left(y \cdot x\right)\\
\end{array}
\end{array}
NOTE: x, y, and z should be sorted in increasing order before calling this function. (FPCore (x y z) :precision binary64 (if (or (<= z -2.5e-5) (not (<= z 1.05e+42))) (- z) (* (* 3.0 y) x)))
assert(x < y && y < z);
double code(double x, double y, double z) {
double tmp;
if ((z <= -2.5e-5) || !(z <= 1.05e+42)) {
tmp = -z;
} else {
tmp = (3.0 * y) * x;
}
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 <= (-2.5d-5)) .or. (.not. (z <= 1.05d+42))) then
tmp = -z
else
tmp = (3.0d0 * y) * x
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 <= -2.5e-5) || !(z <= 1.05e+42)) {
tmp = -z;
} else {
tmp = (3.0 * y) * x;
}
return tmp;
}
[x, y, z] = sort([x, y, z]) def code(x, y, z): tmp = 0 if (z <= -2.5e-5) or not (z <= 1.05e+42): tmp = -z else: tmp = (3.0 * y) * x return tmp
x, y, z = sort([x, y, z]) function code(x, y, z) tmp = 0.0 if ((z <= -2.5e-5) || !(z <= 1.05e+42)) tmp = Float64(-z); else tmp = Float64(Float64(3.0 * y) * x); end return tmp end
x, y, z = num2cell(sort([x, y, z])){:}
function tmp_2 = code(x, y, z)
tmp = 0.0;
if ((z <= -2.5e-5) || ~((z <= 1.05e+42)))
tmp = -z;
else
tmp = (3.0 * y) * x;
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, -2.5e-5], N[Not[LessEqual[z, 1.05e+42]], $MachinePrecision]], (-z), N[(N[(3.0 * y), $MachinePrecision] * x), $MachinePrecision]]
\begin{array}{l}
[x, y, z] = \mathsf{sort}([x, y, z])\\
\\
\begin{array}{l}
\mathbf{if}\;z \leq -2.5 \cdot 10^{-5} \lor \neg \left(z \leq 1.05 \cdot 10^{+42}\right):\\
\;\;\;\;-z\\
\mathbf{else}:\\
\;\;\;\;\left(3 \cdot y\right) \cdot x\\
\end{array}
\end{array}
NOTE: x, y, and z should be sorted in increasing order before calling this function. (FPCore (x y z) :precision binary64 (- (* 3.0 (* y x)) z))
assert(x < y && y < z);
double code(double x, double y, double z) {
return (3.0 * (y * 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 = (3.0d0 * (y * x)) - z
end function
assert x < y && y < z;
public static double code(double x, double y, double z) {
return (3.0 * (y * x)) - z;
}
[x, y, z] = sort([x, y, z]) def code(x, y, z): return (3.0 * (y * x)) - z
x, y, z = sort([x, y, z]) function code(x, y, z) return Float64(Float64(3.0 * Float64(y * x)) - z) end
x, y, z = num2cell(sort([x, y, z])){:}
function tmp = code(x, y, z)
tmp = (3.0 * (y * x)) - 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[(y * x), $MachinePrecision]), $MachinePrecision] - z), $MachinePrecision]
\begin{array}{l}
[x, y, z] = \mathsf{sort}([x, y, z])\\
\\
3 \cdot \left(y \cdot x\right) - z
\end{array}
NOTE: x, y, and z should be sorted in increasing order before calling this function. (FPCore (x y z) :precision binary64 (- (* (* 3.0 y) x) z))
assert(x < y && y < z);
double code(double x, double y, double z) {
return ((3.0 * y) * 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 = ((3.0d0 * y) * x) - z
end function
assert x < y && y < z;
public static double code(double x, double y, double z) {
return ((3.0 * y) * x) - z;
}
[x, y, z] = sort([x, y, z]) def code(x, y, z): return ((3.0 * y) * x) - z
x, y, z = sort([x, y, z]) function code(x, y, z) return Float64(Float64(Float64(3.0 * y) * x) - z) end
x, y, z = num2cell(sort([x, y, z])){:}
function tmp = code(x, y, z)
tmp = ((3.0 * y) * x) - z;
end
NOTE: x, y, and z should be sorted in increasing order before calling this function. code[x_, y_, z_] := N[(N[(N[(3.0 * y), $MachinePrecision] * x), $MachinePrecision] - z), $MachinePrecision]
\begin{array}{l}
[x, y, z] = \mathsf{sort}([x, y, z])\\
\\
\left(3 \cdot y\right) \cdot x - z
\end{array}
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}
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}
(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 2023350
(FPCore (x y z)
:name "Diagrams.Solve.Polynomial:cubForm from diagrams-solve-0.1, B"
:precision binary64
:herbie-target
(- (* x (* 3.0 y)) z)
(- (* (* x 3.0) y) z))