
(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}
NOTE: x, y, and z should be sorted in increasing order before calling this function.
(FPCore (x y z)
:precision binary64
(let* ((t_0 (* y (* x 3.0))) (t_1 (* x (* 3.0 y))))
(if (<= t_0 -5e+56)
t_1
(if (<= t_0 1e-71)
(- z)
(if (<= t_0 2000000.0)
t_1
(if (<= t_0 5e+110) (- z) (* 3.0 (* x y))))))))assert(x < y && y < z);
double code(double x, double y, double z) {
double t_0 = y * (x * 3.0);
double t_1 = x * (3.0 * y);
double tmp;
if (t_0 <= -5e+56) {
tmp = t_1;
} else if (t_0 <= 1e-71) {
tmp = -z;
} else if (t_0 <= 2000000.0) {
tmp = t_1;
} else if (t_0 <= 5e+110) {
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) :: t_0
real(8) :: t_1
real(8) :: tmp
t_0 = y * (x * 3.0d0)
t_1 = x * (3.0d0 * y)
if (t_0 <= (-5d+56)) then
tmp = t_1
else if (t_0 <= 1d-71) then
tmp = -z
else if (t_0 <= 2000000.0d0) then
tmp = t_1
else if (t_0 <= 5d+110) 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 t_0 = y * (x * 3.0);
double t_1 = x * (3.0 * y);
double tmp;
if (t_0 <= -5e+56) {
tmp = t_1;
} else if (t_0 <= 1e-71) {
tmp = -z;
} else if (t_0 <= 2000000.0) {
tmp = t_1;
} else if (t_0 <= 5e+110) {
tmp = -z;
} else {
tmp = 3.0 * (x * y);
}
return tmp;
}
[x, y, z] = sort([x, y, z]) def code(x, y, z): t_0 = y * (x * 3.0) t_1 = x * (3.0 * y) tmp = 0 if t_0 <= -5e+56: tmp = t_1 elif t_0 <= 1e-71: tmp = -z elif t_0 <= 2000000.0: tmp = t_1 elif t_0 <= 5e+110: tmp = -z else: tmp = 3.0 * (x * y) return tmp
x, y, z = sort([x, y, z]) function code(x, y, z) t_0 = Float64(y * Float64(x * 3.0)) t_1 = Float64(x * Float64(3.0 * y)) tmp = 0.0 if (t_0 <= -5e+56) tmp = t_1; elseif (t_0 <= 1e-71) tmp = Float64(-z); elseif (t_0 <= 2000000.0) tmp = t_1; elseif (t_0 <= 5e+110) 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)
t_0 = y * (x * 3.0);
t_1 = x * (3.0 * y);
tmp = 0.0;
if (t_0 <= -5e+56)
tmp = t_1;
elseif (t_0 <= 1e-71)
tmp = -z;
elseif (t_0 <= 2000000.0)
tmp = t_1;
elseif (t_0 <= 5e+110)
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_] := Block[{t$95$0 = N[(y * N[(x * 3.0), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$1 = N[(x * N[(3.0 * y), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[t$95$0, -5e+56], t$95$1, If[LessEqual[t$95$0, 1e-71], (-z), If[LessEqual[t$95$0, 2000000.0], t$95$1, If[LessEqual[t$95$0, 5e+110], (-z), N[(3.0 * N[(x * y), $MachinePrecision]), $MachinePrecision]]]]]]]
\begin{array}{l}
[x, y, z] = \mathsf{sort}([x, y, z])\\
\\
\begin{array}{l}
t_0 := y \cdot \left(x \cdot 3\right)\\
t_1 := x \cdot \left(3 \cdot y\right)\\
\mathbf{if}\;t_0 \leq -5 \cdot 10^{+56}:\\
\;\;\;\;t_1\\
\mathbf{elif}\;t_0 \leq 10^{-71}:\\
\;\;\;\;-z\\
\mathbf{elif}\;t_0 \leq 2000000:\\
\;\;\;\;t_1\\
\mathbf{elif}\;t_0 \leq 5 \cdot 10^{+110}:\\
\;\;\;\;-z\\
\mathbf{else}:\\
\;\;\;\;3 \cdot \left(x \cdot y\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 (<= y -4.7e-80) (not (<= y 5.4e+117))) (* 3.0 (* x y)) (- z)))
assert(x < y && y < z);
double code(double x, double y, double z) {
double tmp;
if ((y <= -4.7e-80) || !(y <= 5.4e+117)) {
tmp = 3.0 * (x * y);
} else {
tmp = -z;
}
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 ((y <= (-4.7d-80)) .or. (.not. (y <= 5.4d+117))) then
tmp = 3.0d0 * (x * y)
else
tmp = -z
end if
code = tmp
end function
assert x < y && y < z;
public static double code(double x, double y, double z) {
double tmp;
if ((y <= -4.7e-80) || !(y <= 5.4e+117)) {
tmp = 3.0 * (x * y);
} else {
tmp = -z;
}
return tmp;
}
[x, y, z] = sort([x, y, z]) def code(x, y, z): tmp = 0 if (y <= -4.7e-80) or not (y <= 5.4e+117): tmp = 3.0 * (x * y) else: tmp = -z return tmp
x, y, z = sort([x, y, z]) function code(x, y, z) tmp = 0.0 if ((y <= -4.7e-80) || !(y <= 5.4e+117)) tmp = Float64(3.0 * Float64(x * y)); else tmp = Float64(-z); end return tmp end
x, y, z = num2cell(sort([x, y, z])){:}
function tmp_2 = code(x, y, z)
tmp = 0.0;
if ((y <= -4.7e-80) || ~((y <= 5.4e+117)))
tmp = 3.0 * (x * y);
else
tmp = -z;
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[y, -4.7e-80], N[Not[LessEqual[y, 5.4e+117]], $MachinePrecision]], N[(3.0 * N[(x * y), $MachinePrecision]), $MachinePrecision], (-z)]
\begin{array}{l}
[x, y, z] = \mathsf{sort}([x, y, z])\\
\\
\begin{array}{l}
\mathbf{if}\;y \leq -4.7 \cdot 10^{-80} \lor \neg \left(y \leq 5.4 \cdot 10^{+117}\right):\\
\;\;\;\;3 \cdot \left(x \cdot y\right)\\
\mathbf{else}:\\
\;\;\;\;-z\\
\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 (* 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}
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 2024010
(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))