
(FPCore (x y z) :precision binary64 (* (+ x y) (- 1.0 z)))
double code(double x, double y, double z) {
return (x + y) * (1.0 - 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 + y) * (1.0d0 - z)
end function
public static double code(double x, double y, double z) {
return (x + y) * (1.0 - z);
}
def code(x, y, z): return (x + y) * (1.0 - z)
function code(x, y, z) return Float64(Float64(x + y) * Float64(1.0 - z)) end
function tmp = code(x, y, z) tmp = (x + y) * (1.0 - z); end
code[x_, y_, z_] := N[(N[(x + y), $MachinePrecision] * N[(1.0 - z), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\left(x + y\right) \cdot \left(1 - z\right)
\end{array}
Sampling outcomes in binary64 precision:
Herbie found 8 alternatives:
| Alternative | Accuracy | Speedup |
|---|
(FPCore (x y z) :precision binary64 (* (+ x y) (- 1.0 z)))
double code(double x, double y, double z) {
return (x + y) * (1.0 - 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 + y) * (1.0d0 - z)
end function
public static double code(double x, double y, double z) {
return (x + y) * (1.0 - z);
}
def code(x, y, z): return (x + y) * (1.0 - z)
function code(x, y, z) return Float64(Float64(x + y) * Float64(1.0 - z)) end
function tmp = code(x, y, z) tmp = (x + y) * (1.0 - z); end
code[x_, y_, z_] := N[(N[(x + y), $MachinePrecision] * N[(1.0 - z), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\left(x + y\right) \cdot \left(1 - z\right)
\end{array}
(FPCore (x y z) :precision binary64 (+ y (- x (* (+ y x) z))))
double code(double x, double y, double z) {
return y + (x - ((y + x) * z));
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
code = y + (x - ((y + x) * z))
end function
public static double code(double x, double y, double z) {
return y + (x - ((y + x) * z));
}
def code(x, y, z): return y + (x - ((y + x) * z))
function code(x, y, z) return Float64(y + Float64(x - Float64(Float64(y + x) * z))) end
function tmp = code(x, y, z) tmp = y + (x - ((y + x) * z)); end
code[x_, y_, z_] := N[(y + N[(x - N[(N[(y + x), $MachinePrecision] * z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
y + \left(x - \left(y + x\right) \cdot z\right)
\end{array}
Initial program 100.0%
Taylor expanded in z around inf 100.0%
+-commutative100.0%
mul-1-neg100.0%
unsub-neg100.0%
Applied egg-rr100.0%
Final simplification100.0%
(FPCore (x y z) :precision binary64 (if (or (<= (- 1.0 z) -0.4) (not (<= (- 1.0 z) 2.0))) (* (+ y x) (- z)) (+ y x)))
double code(double x, double y, double z) {
double tmp;
if (((1.0 - z) <= -0.4) || !((1.0 - z) <= 2.0)) {
tmp = (y + x) * -z;
} else {
tmp = y + 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 (((1.0d0 - z) <= (-0.4d0)) .or. (.not. ((1.0d0 - z) <= 2.0d0))) then
tmp = (y + x) * -z
else
tmp = y + x
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if (((1.0 - z) <= -0.4) || !((1.0 - z) <= 2.0)) {
tmp = (y + x) * -z;
} else {
tmp = y + x;
}
return tmp;
}
def code(x, y, z): tmp = 0 if ((1.0 - z) <= -0.4) or not ((1.0 - z) <= 2.0): tmp = (y + x) * -z else: tmp = y + x return tmp
function code(x, y, z) tmp = 0.0 if ((Float64(1.0 - z) <= -0.4) || !(Float64(1.0 - z) <= 2.0)) tmp = Float64(Float64(y + x) * Float64(-z)); else tmp = Float64(y + x); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if (((1.0 - z) <= -0.4) || ~(((1.0 - z) <= 2.0))) tmp = (y + x) * -z; else tmp = y + x; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[N[(1.0 - z), $MachinePrecision], -0.4], N[Not[LessEqual[N[(1.0 - z), $MachinePrecision], 2.0]], $MachinePrecision]], N[(N[(y + x), $MachinePrecision] * (-z)), $MachinePrecision], N[(y + x), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;1 - z \leq -0.4 \lor \neg \left(1 - z \leq 2\right):\\
\;\;\;\;\left(y + x\right) \cdot \left(-z\right)\\
\mathbf{else}:\\
\;\;\;\;y + x\\
\end{array}
\end{array}
if (-.f64 1 z) < -0.40000000000000002 or 2 < (-.f64 1 z) Initial program 100.0%
Taylor expanded in z around inf 99.0%
mul-1-neg99.0%
+-commutative99.0%
distribute-rgt-neg-out99.0%
+-commutative99.0%
Simplified99.0%
if -0.40000000000000002 < (-.f64 1 z) < 2Initial program 100.0%
Taylor expanded in z around 0 97.5%
Final simplification98.3%
(FPCore (x y z) :precision binary64 (if (or (<= (- 1.0 z) -0.4) (not (<= (- 1.0 z) 1.1))) (* x (- 1.0 z)) (+ y x)))
double code(double x, double y, double z) {
double tmp;
if (((1.0 - z) <= -0.4) || !((1.0 - z) <= 1.1)) {
tmp = x * (1.0 - z);
} else {
tmp = y + 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 (((1.0d0 - z) <= (-0.4d0)) .or. (.not. ((1.0d0 - z) <= 1.1d0))) then
tmp = x * (1.0d0 - z)
else
tmp = y + x
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if (((1.0 - z) <= -0.4) || !((1.0 - z) <= 1.1)) {
tmp = x * (1.0 - z);
} else {
tmp = y + x;
}
return tmp;
}
def code(x, y, z): tmp = 0 if ((1.0 - z) <= -0.4) or not ((1.0 - z) <= 1.1): tmp = x * (1.0 - z) else: tmp = y + x return tmp
function code(x, y, z) tmp = 0.0 if ((Float64(1.0 - z) <= -0.4) || !(Float64(1.0 - z) <= 1.1)) tmp = Float64(x * Float64(1.0 - z)); else tmp = Float64(y + x); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if (((1.0 - z) <= -0.4) || ~(((1.0 - z) <= 1.1))) tmp = x * (1.0 - z); else tmp = y + x; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[N[(1.0 - z), $MachinePrecision], -0.4], N[Not[LessEqual[N[(1.0 - z), $MachinePrecision], 1.1]], $MachinePrecision]], N[(x * N[(1.0 - z), $MachinePrecision]), $MachinePrecision], N[(y + x), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;1 - z \leq -0.4 \lor \neg \left(1 - z \leq 1.1\right):\\
\;\;\;\;x \cdot \left(1 - z\right)\\
\mathbf{else}:\\
\;\;\;\;y + x\\
\end{array}
\end{array}
if (-.f64 1 z) < -0.40000000000000002 or 1.1000000000000001 < (-.f64 1 z) Initial program 100.0%
Taylor expanded in x around inf 55.1%
if -0.40000000000000002 < (-.f64 1 z) < 1.1000000000000001Initial program 100.0%
Taylor expanded in z around 0 98.1%
Final simplification76.4%
(FPCore (x y z) :precision binary64 (if (or (<= z -6e+14) (not (<= z 1.0))) (* x (- z)) (+ y x)))
double code(double x, double y, double z) {
double tmp;
if ((z <= -6e+14) || !(z <= 1.0)) {
tmp = x * -z;
} else {
tmp = y + 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 ((z <= (-6d+14)) .or. (.not. (z <= 1.0d0))) then
tmp = x * -z
else
tmp = y + x
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if ((z <= -6e+14) || !(z <= 1.0)) {
tmp = x * -z;
} else {
tmp = y + x;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (z <= -6e+14) or not (z <= 1.0): tmp = x * -z else: tmp = y + x return tmp
function code(x, y, z) tmp = 0.0 if ((z <= -6e+14) || !(z <= 1.0)) tmp = Float64(x * Float64(-z)); else tmp = Float64(y + x); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((z <= -6e+14) || ~((z <= 1.0))) tmp = x * -z; else tmp = y + x; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[z, -6e+14], N[Not[LessEqual[z, 1.0]], $MachinePrecision]], N[(x * (-z)), $MachinePrecision], N[(y + x), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;z \leq -6 \cdot 10^{+14} \lor \neg \left(z \leq 1\right):\\
\;\;\;\;x \cdot \left(-z\right)\\
\mathbf{else}:\\
\;\;\;\;y + x\\
\end{array}
\end{array}
if z < -6e14 or 1 < z Initial program 100.0%
Taylor expanded in x around inf 54.8%
sub-neg54.8%
+-commutative54.8%
distribute-rgt1-in54.8%
distribute-lft-neg-out54.8%
unsub-neg54.8%
Simplified54.8%
Taylor expanded in z around inf 54.2%
associate-*r*54.2%
mul-1-neg54.2%
Simplified54.2%
if -6e14 < z < 1Initial program 100.0%
Taylor expanded in z around 0 96.8%
Final simplification75.7%
(FPCore (x y z) :precision binary64 (if (<= x -1.2e-111) (* x (- 1.0 z)) (- y (* y z))))
double code(double x, double y, double z) {
double tmp;
if (x <= -1.2e-111) {
tmp = x * (1.0 - z);
} else {
tmp = y - (y * z);
}
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 <= (-1.2d-111)) then
tmp = x * (1.0d0 - z)
else
tmp = y - (y * z)
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if (x <= -1.2e-111) {
tmp = x * (1.0 - z);
} else {
tmp = y - (y * z);
}
return tmp;
}
def code(x, y, z): tmp = 0 if x <= -1.2e-111: tmp = x * (1.0 - z) else: tmp = y - (y * z) return tmp
function code(x, y, z) tmp = 0.0 if (x <= -1.2e-111) tmp = Float64(x * Float64(1.0 - z)); else tmp = Float64(y - Float64(y * z)); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if (x <= -1.2e-111) tmp = x * (1.0 - z); else tmp = y - (y * z); end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[x, -1.2e-111], N[(x * N[(1.0 - z), $MachinePrecision]), $MachinePrecision], N[(y - N[(y * z), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -1.2 \cdot 10^{-111}:\\
\;\;\;\;x \cdot \left(1 - z\right)\\
\mathbf{else}:\\
\;\;\;\;y - y \cdot z\\
\end{array}
\end{array}
if x < -1.2e-111Initial program 99.9%
Taylor expanded in x around inf 72.5%
if -1.2e-111 < x Initial program 100.0%
Taylor expanded in x around 0 56.5%
sub-neg56.5%
distribute-lft-in56.5%
distribute-rgt-neg-out56.5%
unsub-neg56.5%
*-rgt-identity56.5%
Simplified56.5%
Final simplification61.1%
(FPCore (x y z) :precision binary64 (* (+ y x) (- 1.0 z)))
double code(double x, double y, double z) {
return (y + x) * (1.0 - z);
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
code = (y + x) * (1.0d0 - z)
end function
public static double code(double x, double y, double z) {
return (y + x) * (1.0 - z);
}
def code(x, y, z): return (y + x) * (1.0 - z)
function code(x, y, z) return Float64(Float64(y + x) * Float64(1.0 - z)) end
function tmp = code(x, y, z) tmp = (y + x) * (1.0 - z); end
code[x_, y_, z_] := N[(N[(y + x), $MachinePrecision] * N[(1.0 - z), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\left(y + x\right) \cdot \left(1 - z\right)
\end{array}
Initial program 100.0%
Final simplification100.0%
(FPCore (x y z) :precision binary64 (+ y x))
double code(double x, double y, double z) {
return y + x;
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
code = y + x
end function
public static double code(double x, double y, double z) {
return y + x;
}
def code(x, y, z): return y + x
function code(x, y, z) return Float64(y + x) end
function tmp = code(x, y, z) tmp = y + x; end
code[x_, y_, z_] := N[(y + x), $MachinePrecision]
\begin{array}{l}
\\
y + x
\end{array}
Initial program 100.0%
Taylor expanded in z around 0 50.6%
Final simplification50.6%
(FPCore (x y z) :precision binary64 y)
double code(double x, double y, double z) {
return y;
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
code = y
end function
public static double code(double x, double y, double z) {
return y;
}
def code(x, y, z): return y
function code(x, y, z) return y end
function tmp = code(x, y, z) tmp = y; end
code[x_, y_, z_] := y
\begin{array}{l}
\\
y
\end{array}
Initial program 100.0%
*-commutative100.0%
+-commutative100.0%
distribute-lft-in99.6%
Applied egg-rr99.6%
Taylor expanded in z around inf 73.3%
mul-1-neg73.3%
distribute-rgt-neg-in73.3%
Simplified73.3%
Taylor expanded in z around 0 24.9%
Final simplification24.9%
herbie shell --seed 2023268
(FPCore (x y z)
:name "Optimisation.CirclePacking:place from circle-packing-0.1.0.4, H"
:precision binary64
(* (+ x y) (- 1.0 z)))