
(FPCore (x y z) :precision binary64 (+ (* x (+ y z)) (* z 5.0)))
double code(double x, double y, double z) {
return (x * (y + z)) + (z * 5.0);
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
code = (x * (y + z)) + (z * 5.0d0)
end function
public static double code(double x, double y, double z) {
return (x * (y + z)) + (z * 5.0);
}
def code(x, y, z): return (x * (y + z)) + (z * 5.0)
function code(x, y, z) return Float64(Float64(x * Float64(y + z)) + Float64(z * 5.0)) end
function tmp = code(x, y, z) tmp = (x * (y + z)) + (z * 5.0); end
code[x_, y_, z_] := N[(N[(x * N[(y + z), $MachinePrecision]), $MachinePrecision] + N[(z * 5.0), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
x \cdot \left(y + z\right) + z \cdot 5
\end{array}
Sampling outcomes in binary64 precision:
Herbie found 7 alternatives:
| Alternative | Accuracy | Speedup |
|---|
(FPCore (x y z) :precision binary64 (+ (* x (+ y z)) (* z 5.0)))
double code(double x, double y, double z) {
return (x * (y + z)) + (z * 5.0);
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
code = (x * (y + z)) + (z * 5.0d0)
end function
public static double code(double x, double y, double z) {
return (x * (y + z)) + (z * 5.0);
}
def code(x, y, z): return (x * (y + z)) + (z * 5.0)
function code(x, y, z) return Float64(Float64(x * Float64(y + z)) + Float64(z * 5.0)) end
function tmp = code(x, y, z) tmp = (x * (y + z)) + (z * 5.0); end
code[x_, y_, z_] := N[(N[(x * N[(y + z), $MachinePrecision]), $MachinePrecision] + N[(z * 5.0), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
x \cdot \left(y + z\right) + z \cdot 5
\end{array}
(FPCore (x y z) :precision binary64 (fma z 5.0 (* x (+ z y))))
double code(double x, double y, double z) {
return fma(z, 5.0, (x * (z + y)));
}
function code(x, y, z) return fma(z, 5.0, Float64(x * Float64(z + y))) end
code[x_, y_, z_] := N[(z * 5.0 + N[(x * N[(z + y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\mathsf{fma}\left(z, 5, x \cdot \left(z + y\right)\right)
\end{array}
Initial program 99.9%
+-commutative99.9%
fma-def100.0%
Applied egg-rr100.0%
Final simplification100.0%
(FPCore (x y z)
:precision binary64
(if (<= x -5.0)
(* z x)
(if (<= x 4.2e-38)
(* z 5.0)
(if (or (<= x 1.15e+48) (and (not (<= x 2.7e+164)) (<= x 7.6e+239)))
(* x y)
(* z x)))))
double code(double x, double y, double z) {
double tmp;
if (x <= -5.0) {
tmp = z * x;
} else if (x <= 4.2e-38) {
tmp = z * 5.0;
} else if ((x <= 1.15e+48) || (!(x <= 2.7e+164) && (x <= 7.6e+239))) {
tmp = x * y;
} else {
tmp = z * x;
}
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 <= (-5.0d0)) then
tmp = z * x
else if (x <= 4.2d-38) then
tmp = z * 5.0d0
else if ((x <= 1.15d+48) .or. (.not. (x <= 2.7d+164)) .and. (x <= 7.6d+239)) then
tmp = x * y
else
tmp = z * x
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if (x <= -5.0) {
tmp = z * x;
} else if (x <= 4.2e-38) {
tmp = z * 5.0;
} else if ((x <= 1.15e+48) || (!(x <= 2.7e+164) && (x <= 7.6e+239))) {
tmp = x * y;
} else {
tmp = z * x;
}
return tmp;
}
def code(x, y, z): tmp = 0 if x <= -5.0: tmp = z * x elif x <= 4.2e-38: tmp = z * 5.0 elif (x <= 1.15e+48) or (not (x <= 2.7e+164) and (x <= 7.6e+239)): tmp = x * y else: tmp = z * x return tmp
function code(x, y, z) tmp = 0.0 if (x <= -5.0) tmp = Float64(z * x); elseif (x <= 4.2e-38) tmp = Float64(z * 5.0); elseif ((x <= 1.15e+48) || (!(x <= 2.7e+164) && (x <= 7.6e+239))) tmp = Float64(x * y); else tmp = Float64(z * x); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if (x <= -5.0) tmp = z * x; elseif (x <= 4.2e-38) tmp = z * 5.0; elseif ((x <= 1.15e+48) || (~((x <= 2.7e+164)) && (x <= 7.6e+239))) tmp = x * y; else tmp = z * x; end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[x, -5.0], N[(z * x), $MachinePrecision], If[LessEqual[x, 4.2e-38], N[(z * 5.0), $MachinePrecision], If[Or[LessEqual[x, 1.15e+48], And[N[Not[LessEqual[x, 2.7e+164]], $MachinePrecision], LessEqual[x, 7.6e+239]]], N[(x * y), $MachinePrecision], N[(z * x), $MachinePrecision]]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -5:\\
\;\;\;\;z \cdot x\\
\mathbf{elif}\;x \leq 4.2 \cdot 10^{-38}:\\
\;\;\;\;z \cdot 5\\
\mathbf{elif}\;x \leq 1.15 \cdot 10^{+48} \lor \neg \left(x \leq 2.7 \cdot 10^{+164}\right) \land x \leq 7.6 \cdot 10^{+239}:\\
\;\;\;\;x \cdot y\\
\mathbf{else}:\\
\;\;\;\;z \cdot x\\
\end{array}
\end{array}
if x < -5 or 1.15e48 < x < 2.70000000000000006e164 or 7.6000000000000003e239 < x Initial program 100.0%
Taylor expanded in y around 0 62.0%
+-commutative62.0%
*-commutative62.0%
distribute-rgt-in62.0%
Simplified62.0%
Taylor expanded in x around inf 61.5%
if -5 < x < 4.20000000000000026e-38Initial program 99.8%
Taylor expanded in x around 0 73.0%
if 4.20000000000000026e-38 < x < 1.15e48 or 2.70000000000000006e164 < x < 7.6000000000000003e239Initial program 100.0%
Taylor expanded in y around inf 61.9%
Final simplification66.8%
(FPCore (x y z) :precision binary64 (if (or (<= z -3.6e-71) (not (<= z 6e+28))) (* z (+ 5.0 x)) (* x y)))
double code(double x, double y, double z) {
double tmp;
if ((z <= -3.6e-71) || !(z <= 6e+28)) {
tmp = z * (5.0 + x);
} else {
tmp = 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 ((z <= (-3.6d-71)) .or. (.not. (z <= 6d+28))) then
tmp = z * (5.0d0 + x)
else
tmp = x * y
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if ((z <= -3.6e-71) || !(z <= 6e+28)) {
tmp = z * (5.0 + x);
} else {
tmp = x * y;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (z <= -3.6e-71) or not (z <= 6e+28): tmp = z * (5.0 + x) else: tmp = x * y return tmp
function code(x, y, z) tmp = 0.0 if ((z <= -3.6e-71) || !(z <= 6e+28)) tmp = Float64(z * Float64(5.0 + x)); else tmp = Float64(x * y); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((z <= -3.6e-71) || ~((z <= 6e+28))) tmp = z * (5.0 + x); else tmp = x * y; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[z, -3.6e-71], N[Not[LessEqual[z, 6e+28]], $MachinePrecision]], N[(z * N[(5.0 + x), $MachinePrecision]), $MachinePrecision], N[(x * y), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;z \leq -3.6 \cdot 10^{-71} \lor \neg \left(z \leq 6 \cdot 10^{+28}\right):\\
\;\;\;\;z \cdot \left(5 + x\right)\\
\mathbf{else}:\\
\;\;\;\;x \cdot y\\
\end{array}
\end{array}
if z < -3.6e-71 or 6.0000000000000002e28 < z Initial program 99.9%
Taylor expanded in y around 0 88.5%
+-commutative88.5%
*-commutative88.5%
distribute-rgt-in88.5%
Simplified88.5%
if -3.6e-71 < z < 6.0000000000000002e28Initial program 99.9%
Taylor expanded in y around inf 66.2%
Final simplification78.3%
(FPCore (x y z) :precision binary64 (if (or (<= x -1.9e+15) (not (<= x 4.1e-38))) (* x (+ z y)) (* z (+ 5.0 x))))
double code(double x, double y, double z) {
double tmp;
if ((x <= -1.9e+15) || !(x <= 4.1e-38)) {
tmp = x * (z + y);
} else {
tmp = z * (5.0 + x);
}
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 <= (-1.9d+15)) .or. (.not. (x <= 4.1d-38))) then
tmp = x * (z + y)
else
tmp = z * (5.0d0 + x)
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if ((x <= -1.9e+15) || !(x <= 4.1e-38)) {
tmp = x * (z + y);
} else {
tmp = z * (5.0 + x);
}
return tmp;
}
def code(x, y, z): tmp = 0 if (x <= -1.9e+15) or not (x <= 4.1e-38): tmp = x * (z + y) else: tmp = z * (5.0 + x) return tmp
function code(x, y, z) tmp = 0.0 if ((x <= -1.9e+15) || !(x <= 4.1e-38)) tmp = Float64(x * Float64(z + y)); else tmp = Float64(z * Float64(5.0 + x)); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((x <= -1.9e+15) || ~((x <= 4.1e-38))) tmp = x * (z + y); else tmp = z * (5.0 + x); end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[x, -1.9e+15], N[Not[LessEqual[x, 4.1e-38]], $MachinePrecision]], N[(x * N[(z + y), $MachinePrecision]), $MachinePrecision], N[(z * N[(5.0 + x), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -1.9 \cdot 10^{+15} \lor \neg \left(x \leq 4.1 \cdot 10^{-38}\right):\\
\;\;\;\;x \cdot \left(z + y\right)\\
\mathbf{else}:\\
\;\;\;\;z \cdot \left(5 + x\right)\\
\end{array}
\end{array}
if x < -1.9e15 or 4.0999999999999998e-38 < x Initial program 100.0%
Taylor expanded in x around inf 95.5%
+-commutative95.5%
Simplified95.5%
if -1.9e15 < x < 4.0999999999999998e-38Initial program 99.8%
Taylor expanded in y around 0 74.7%
+-commutative74.7%
*-commutative74.7%
distribute-rgt-in74.7%
Simplified74.7%
Final simplification85.9%
(FPCore (x y z) :precision binary64 (+ (* x (+ z y)) (* z 5.0)))
double code(double x, double y, double z) {
return (x * (z + y)) + (z * 5.0);
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
code = (x * (z + y)) + (z * 5.0d0)
end function
public static double code(double x, double y, double z) {
return (x * (z + y)) + (z * 5.0);
}
def code(x, y, z): return (x * (z + y)) + (z * 5.0)
function code(x, y, z) return Float64(Float64(x * Float64(z + y)) + Float64(z * 5.0)) end
function tmp = code(x, y, z) tmp = (x * (z + y)) + (z * 5.0); end
code[x_, y_, z_] := N[(N[(x * N[(z + y), $MachinePrecision]), $MachinePrecision] + N[(z * 5.0), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
x \cdot \left(z + y\right) + z \cdot 5
\end{array}
Initial program 99.9%
Final simplification99.9%
(FPCore (x y z) :precision binary64 (if (<= x -0.31) (* x y) (if (<= x 1.05e-37) (* z 5.0) (* x y))))
double code(double x, double y, double z) {
double tmp;
if (x <= -0.31) {
tmp = x * y;
} else if (x <= 1.05e-37) {
tmp = z * 5.0;
} else {
tmp = 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 <= (-0.31d0)) then
tmp = x * y
else if (x <= 1.05d-37) then
tmp = z * 5.0d0
else
tmp = x * y
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if (x <= -0.31) {
tmp = x * y;
} else if (x <= 1.05e-37) {
tmp = z * 5.0;
} else {
tmp = x * y;
}
return tmp;
}
def code(x, y, z): tmp = 0 if x <= -0.31: tmp = x * y elif x <= 1.05e-37: tmp = z * 5.0 else: tmp = x * y return tmp
function code(x, y, z) tmp = 0.0 if (x <= -0.31) tmp = Float64(x * y); elseif (x <= 1.05e-37) tmp = Float64(z * 5.0); else tmp = Float64(x * y); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if (x <= -0.31) tmp = x * y; elseif (x <= 1.05e-37) tmp = z * 5.0; else tmp = x * y; end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[x, -0.31], N[(x * y), $MachinePrecision], If[LessEqual[x, 1.05e-37], N[(z * 5.0), $MachinePrecision], N[(x * y), $MachinePrecision]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -0.31:\\
\;\;\;\;x \cdot y\\
\mathbf{elif}\;x \leq 1.05 \cdot 10^{-37}:\\
\;\;\;\;z \cdot 5\\
\mathbf{else}:\\
\;\;\;\;x \cdot y\\
\end{array}
\end{array}
if x < -0.309999999999999998 or 1.05e-37 < x Initial program 100.0%
Taylor expanded in y around inf 47.5%
if -0.309999999999999998 < x < 1.05e-37Initial program 99.8%
Taylor expanded in x around 0 73.0%
Final simplification59.1%
(FPCore (x y z) :precision binary64 (* z 5.0))
double code(double x, double y, double z) {
return z * 5.0;
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
code = z * 5.0d0
end function
public static double code(double x, double y, double z) {
return z * 5.0;
}
def code(x, y, z): return z * 5.0
function code(x, y, z) return Float64(z * 5.0) end
function tmp = code(x, y, z) tmp = z * 5.0; end
code[x_, y_, z_] := N[(z * 5.0), $MachinePrecision]
\begin{array}{l}
\\
z \cdot 5
\end{array}
Initial program 99.9%
Taylor expanded in x around 0 36.3%
Final simplification36.3%
(FPCore (x y z) :precision binary64 (+ (* (+ x 5.0) z) (* x y)))
double code(double x, double y, double z) {
return ((x + 5.0) * z) + (x * y);
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
code = ((x + 5.0d0) * z) + (x * y)
end function
public static double code(double x, double y, double z) {
return ((x + 5.0) * z) + (x * y);
}
def code(x, y, z): return ((x + 5.0) * z) + (x * y)
function code(x, y, z) return Float64(Float64(Float64(x + 5.0) * z) + Float64(x * y)) end
function tmp = code(x, y, z) tmp = ((x + 5.0) * z) + (x * y); end
code[x_, y_, z_] := N[(N[(N[(x + 5.0), $MachinePrecision] * z), $MachinePrecision] + N[(x * y), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\left(x + 5\right) \cdot z + x \cdot y
\end{array}
herbie shell --seed 2023176
(FPCore (x y z)
:name "Graphics.Rendering.Plot.Render.Plot.Legend:renderLegendOutside from plot-0.2.3.4, C"
:precision binary64
:herbie-target
(+ (* (+ x 5.0) z) (* x y))
(+ (* x (+ y z)) (* z 5.0)))