
(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 9 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 (* (- 1.0 z) (+ x y)))
double code(double x, double y, double z) {
return (1.0 - 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 = (1.0d0 - z) * (x + y)
end function
public static double code(double x, double y, double z) {
return (1.0 - z) * (x + y);
}
def code(x, y, z): return (1.0 - z) * (x + y)
function code(x, y, z) return Float64(Float64(1.0 - z) * Float64(x + y)) end
function tmp = code(x, y, z) tmp = (1.0 - z) * (x + y); end
code[x_, y_, z_] := N[(N[(1.0 - z), $MachinePrecision] * N[(x + y), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\left(1 - z\right) \cdot \left(x + y\right)
\end{array}
Initial program 100.0%
Final simplification100.0%
(FPCore (x y z)
:precision binary64
(let* ((t_0 (* x (- z))))
(if (<= z -66.0)
t_0
(if (<= z 0.085) (+ x y) (if (<= z 2.4e+44) (* y (- 1.0 z)) t_0)))))
double code(double x, double y, double z) {
double t_0 = x * -z;
double tmp;
if (z <= -66.0) {
tmp = t_0;
} else if (z <= 0.085) {
tmp = x + y;
} else if (z <= 2.4e+44) {
tmp = y * (1.0 - z);
} else {
tmp = t_0;
}
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) :: t_0
real(8) :: tmp
t_0 = x * -z
if (z <= (-66.0d0)) then
tmp = t_0
else if (z <= 0.085d0) then
tmp = x + y
else if (z <= 2.4d+44) then
tmp = y * (1.0d0 - z)
else
tmp = t_0
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double t_0 = x * -z;
double tmp;
if (z <= -66.0) {
tmp = t_0;
} else if (z <= 0.085) {
tmp = x + y;
} else if (z <= 2.4e+44) {
tmp = y * (1.0 - z);
} else {
tmp = t_0;
}
return tmp;
}
def code(x, y, z): t_0 = x * -z tmp = 0 if z <= -66.0: tmp = t_0 elif z <= 0.085: tmp = x + y elif z <= 2.4e+44: tmp = y * (1.0 - z) else: tmp = t_0 return tmp
function code(x, y, z) t_0 = Float64(x * Float64(-z)) tmp = 0.0 if (z <= -66.0) tmp = t_0; elseif (z <= 0.085) tmp = Float64(x + y); elseif (z <= 2.4e+44) tmp = Float64(y * Float64(1.0 - z)); else tmp = t_0; end return tmp end
function tmp_2 = code(x, y, z) t_0 = x * -z; tmp = 0.0; if (z <= -66.0) tmp = t_0; elseif (z <= 0.085) tmp = x + y; elseif (z <= 2.4e+44) tmp = y * (1.0 - z); else tmp = t_0; end tmp_2 = tmp; end
code[x_, y_, z_] := Block[{t$95$0 = N[(x * (-z)), $MachinePrecision]}, If[LessEqual[z, -66.0], t$95$0, If[LessEqual[z, 0.085], N[(x + y), $MachinePrecision], If[LessEqual[z, 2.4e+44], N[(y * N[(1.0 - z), $MachinePrecision]), $MachinePrecision], t$95$0]]]]
\begin{array}{l}
\\
\begin{array}{l}
t_0 := x \cdot \left(-z\right)\\
\mathbf{if}\;z \leq -66:\\
\;\;\;\;t\_0\\
\mathbf{elif}\;z \leq 0.085:\\
\;\;\;\;x + y\\
\mathbf{elif}\;z \leq 2.4 \cdot 10^{+44}:\\
\;\;\;\;y \cdot \left(1 - z\right)\\
\mathbf{else}:\\
\;\;\;\;t\_0\\
\end{array}
\end{array}
if z < -66 or 2.40000000000000013e44 < z Initial program 100.0%
sub-neg100.0%
distribute-lft-in99.9%
*-commutative99.9%
*-un-lft-identity99.9%
Applied egg-rr99.9%
Taylor expanded in y around 0 59.5%
Taylor expanded in z around inf 59.3%
associate-*r*59.3%
neg-mul-159.3%
Simplified59.3%
if -66 < z < 0.0850000000000000061Initial program 100.0%
Taylor expanded in z around 0 97.1%
+-commutative97.1%
Simplified97.1%
if 0.0850000000000000061 < z < 2.40000000000000013e44Initial program 99.9%
Taylor expanded in x around 0 43.1%
Final simplification77.8%
(FPCore (x y z) :precision binary64 (if (or (<= (- 1.0 z) -1000000.0) (not (<= (- 1.0 z) 2.0))) (* z (- (- x) y)) (+ x y)))
double code(double x, double y, double z) {
double tmp;
if (((1.0 - z) <= -1000000.0) || !((1.0 - z) <= 2.0)) {
tmp = z * (-x - y);
} 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 (((1.0d0 - z) <= (-1000000.0d0)) .or. (.not. ((1.0d0 - z) <= 2.0d0))) then
tmp = z * (-x - y)
else
tmp = x + y
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if (((1.0 - z) <= -1000000.0) || !((1.0 - z) <= 2.0)) {
tmp = z * (-x - y);
} else {
tmp = x + y;
}
return tmp;
}
def code(x, y, z): tmp = 0 if ((1.0 - z) <= -1000000.0) or not ((1.0 - z) <= 2.0): tmp = z * (-x - y) else: tmp = x + y return tmp
function code(x, y, z) tmp = 0.0 if ((Float64(1.0 - z) <= -1000000.0) || !(Float64(1.0 - z) <= 2.0)) tmp = Float64(z * Float64(Float64(-x) - y)); else tmp = Float64(x + y); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if (((1.0 - z) <= -1000000.0) || ~(((1.0 - z) <= 2.0))) tmp = z * (-x - y); else tmp = x + y; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[N[(1.0 - z), $MachinePrecision], -1000000.0], N[Not[LessEqual[N[(1.0 - z), $MachinePrecision], 2.0]], $MachinePrecision]], N[(z * N[((-x) - y), $MachinePrecision]), $MachinePrecision], N[(x + y), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;1 - z \leq -1000000 \lor \neg \left(1 - z \leq 2\right):\\
\;\;\;\;z \cdot \left(\left(-x\right) - y\right)\\
\mathbf{else}:\\
\;\;\;\;x + y\\
\end{array}
\end{array}
if (-.f64 1 z) < -1e6 or 2 < (-.f64 1 z) Initial program 99.9%
Taylor expanded in z around inf 97.3%
mul-1-neg97.3%
distribute-lft-neg-out97.3%
*-commutative97.3%
+-commutative97.3%
Simplified97.3%
if -1e6 < (-.f64 1 z) < 2Initial program 100.0%
Taylor expanded in z around 0 97.7%
+-commutative97.7%
Simplified97.7%
Final simplification97.5%
(FPCore (x y z)
:precision binary64
(let* ((t_0 (* x (- z))))
(if (<= z -70.0)
t_0
(if (<= z 1.0) (+ x y) (if (<= z 8e+44) (* y (- z)) t_0)))))
double code(double x, double y, double z) {
double t_0 = x * -z;
double tmp;
if (z <= -70.0) {
tmp = t_0;
} else if (z <= 1.0) {
tmp = x + y;
} else if (z <= 8e+44) {
tmp = y * -z;
} else {
tmp = t_0;
}
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) :: t_0
real(8) :: tmp
t_0 = x * -z
if (z <= (-70.0d0)) then
tmp = t_0
else if (z <= 1.0d0) then
tmp = x + y
else if (z <= 8d+44) then
tmp = y * -z
else
tmp = t_0
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double t_0 = x * -z;
double tmp;
if (z <= -70.0) {
tmp = t_0;
} else if (z <= 1.0) {
tmp = x + y;
} else if (z <= 8e+44) {
tmp = y * -z;
} else {
tmp = t_0;
}
return tmp;
}
def code(x, y, z): t_0 = x * -z tmp = 0 if z <= -70.0: tmp = t_0 elif z <= 1.0: tmp = x + y elif z <= 8e+44: tmp = y * -z else: tmp = t_0 return tmp
function code(x, y, z) t_0 = Float64(x * Float64(-z)) tmp = 0.0 if (z <= -70.0) tmp = t_0; elseif (z <= 1.0) tmp = Float64(x + y); elseif (z <= 8e+44) tmp = Float64(y * Float64(-z)); else tmp = t_0; end return tmp end
function tmp_2 = code(x, y, z) t_0 = x * -z; tmp = 0.0; if (z <= -70.0) tmp = t_0; elseif (z <= 1.0) tmp = x + y; elseif (z <= 8e+44) tmp = y * -z; else tmp = t_0; end tmp_2 = tmp; end
code[x_, y_, z_] := Block[{t$95$0 = N[(x * (-z)), $MachinePrecision]}, If[LessEqual[z, -70.0], t$95$0, If[LessEqual[z, 1.0], N[(x + y), $MachinePrecision], If[LessEqual[z, 8e+44], N[(y * (-z)), $MachinePrecision], t$95$0]]]]
\begin{array}{l}
\\
\begin{array}{l}
t_0 := x \cdot \left(-z\right)\\
\mathbf{if}\;z \leq -70:\\
\;\;\;\;t\_0\\
\mathbf{elif}\;z \leq 1:\\
\;\;\;\;x + y\\
\mathbf{elif}\;z \leq 8 \cdot 10^{+44}:\\
\;\;\;\;y \cdot \left(-z\right)\\
\mathbf{else}:\\
\;\;\;\;t\_0\\
\end{array}
\end{array}
if z < -70 or 8.0000000000000007e44 < z Initial program 100.0%
sub-neg100.0%
distribute-lft-in99.9%
*-commutative99.9%
*-un-lft-identity99.9%
Applied egg-rr99.9%
Taylor expanded in y around 0 59.5%
Taylor expanded in z around inf 59.3%
associate-*r*59.3%
neg-mul-159.3%
Simplified59.3%
if -70 < z < 1Initial program 100.0%
Taylor expanded in z around 0 97.1%
+-commutative97.1%
Simplified97.1%
if 1 < z < 8.0000000000000007e44Initial program 99.9%
*-commutative99.9%
+-commutative99.9%
distribute-lft-in100.0%
Applied egg-rr100.0%
Taylor expanded in z around inf 90.3%
mul-1-neg90.3%
distribute-rgt-neg-out90.3%
Simplified90.3%
Taylor expanded in y around inf 37.7%
associate-*r*37.7%
mul-1-neg37.7%
Simplified37.7%
Final simplification77.6%
(FPCore (x y z) :precision binary64 (if (or (<= z -35.0) (not (<= z 1.0))) (* x (- z)) (+ x y)))
double code(double x, double y, double z) {
double tmp;
if ((z <= -35.0) || !(z <= 1.0)) {
tmp = x * -z;
} 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 <= (-35.0d0)) .or. (.not. (z <= 1.0d0))) then
tmp = x * -z
else
tmp = x + y
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if ((z <= -35.0) || !(z <= 1.0)) {
tmp = x * -z;
} else {
tmp = x + y;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (z <= -35.0) or not (z <= 1.0): tmp = x * -z else: tmp = x + y return tmp
function code(x, y, z) tmp = 0.0 if ((z <= -35.0) || !(z <= 1.0)) tmp = Float64(x * Float64(-z)); else tmp = Float64(x + y); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((z <= -35.0) || ~((z <= 1.0))) tmp = x * -z; else tmp = x + y; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[z, -35.0], N[Not[LessEqual[z, 1.0]], $MachinePrecision]], N[(x * (-z)), $MachinePrecision], N[(x + y), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;z \leq -35 \lor \neg \left(z \leq 1\right):\\
\;\;\;\;x \cdot \left(-z\right)\\
\mathbf{else}:\\
\;\;\;\;x + y\\
\end{array}
\end{array}
if z < -35 or 1 < z Initial program 100.0%
sub-neg100.0%
distribute-lft-in99.9%
*-commutative99.9%
*-un-lft-identity99.9%
Applied egg-rr99.9%
Taylor expanded in y around 0 59.2%
Taylor expanded in z around inf 58.5%
associate-*r*58.5%
neg-mul-158.5%
Simplified58.5%
if -35 < z < 1Initial program 100.0%
Taylor expanded in z around 0 97.1%
+-commutative97.1%
Simplified97.1%
Final simplification78.1%
(FPCore (x y z) :precision binary64 (if (<= x -1e-90) (* x (- 1.0 z)) (* y (- 1.0 z))))
double code(double x, double y, double z) {
double tmp;
if (x <= -1e-90) {
tmp = x * (1.0 - z);
} else {
tmp = y * (1.0 - 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 <= (-1d-90)) then
tmp = x * (1.0d0 - z)
else
tmp = y * (1.0d0 - z)
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if (x <= -1e-90) {
tmp = x * (1.0 - z);
} else {
tmp = y * (1.0 - z);
}
return tmp;
}
def code(x, y, z): tmp = 0 if x <= -1e-90: tmp = x * (1.0 - z) else: tmp = y * (1.0 - z) return tmp
function code(x, y, z) tmp = 0.0 if (x <= -1e-90) tmp = Float64(x * Float64(1.0 - z)); else tmp = Float64(y * Float64(1.0 - z)); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if (x <= -1e-90) tmp = x * (1.0 - z); else tmp = y * (1.0 - z); end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[x, -1e-90], N[(x * N[(1.0 - z), $MachinePrecision]), $MachinePrecision], N[(y * N[(1.0 - z), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -1 \cdot 10^{-90}:\\
\;\;\;\;x \cdot \left(1 - z\right)\\
\mathbf{else}:\\
\;\;\;\;y \cdot \left(1 - z\right)\\
\end{array}
\end{array}
if x < -9.99999999999999995e-91Initial program 99.9%
Taylor expanded in x around inf 73.4%
*-commutative73.4%
Simplified73.4%
if -9.99999999999999995e-91 < x Initial program 100.0%
Taylor expanded in x around 0 60.0%
Final simplification64.8%
(FPCore (x y z) :precision binary64 (if (<= x -1.6e-84) x y))
double code(double x, double y, double z) {
double tmp;
if (x <= -1.6e-84) {
tmp = x;
} else {
tmp = 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 <= (-1.6d-84)) then
tmp = x
else
tmp = y
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if (x <= -1.6e-84) {
tmp = x;
} else {
tmp = y;
}
return tmp;
}
def code(x, y, z): tmp = 0 if x <= -1.6e-84: tmp = x else: tmp = y return tmp
function code(x, y, z) tmp = 0.0 if (x <= -1.6e-84) tmp = x; else tmp = y; end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if (x <= -1.6e-84) tmp = x; else tmp = y; end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[x, -1.6e-84], x, y]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -1.6 \cdot 10^{-84}:\\
\;\;\;\;x\\
\mathbf{else}:\\
\;\;\;\;y\\
\end{array}
\end{array}
if x < -1.6e-84Initial program 99.9%
Taylor expanded in x around inf 74.2%
*-commutative74.2%
Simplified74.2%
Taylor expanded in z around 0 33.2%
if -1.6e-84 < x Initial program 100.0%
Taylor expanded in x around 0 60.3%
Taylor expanded in z around 0 34.5%
Final simplification34.0%
(FPCore (x y z) :precision binary64 (+ x y))
double code(double x, double y, double z) {
return 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 + y
end function
public static double code(double x, double y, double z) {
return x + y;
}
def code(x, y, z): return x + y
function code(x, y, z) return Float64(x + y) end
function tmp = code(x, y, z) tmp = x + y; end
code[x_, y_, z_] := N[(x + y), $MachinePrecision]
\begin{array}{l}
\\
x + y
\end{array}
Initial program 100.0%
Taylor expanded in z around 0 51.2%
+-commutative51.2%
Simplified51.2%
Final simplification51.2%
(FPCore (x y z) :precision binary64 x)
double code(double x, double y, double z) {
return x;
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
code = x
end function
public static double code(double x, double y, double z) {
return x;
}
def code(x, y, z): return x
function code(x, y, z) return x end
function tmp = code(x, y, z) tmp = x; end
code[x_, y_, z_] := x
\begin{array}{l}
\\
x
\end{array}
Initial program 100.0%
Taylor expanded in x around inf 54.1%
*-commutative54.1%
Simplified54.1%
Taylor expanded in z around 0 26.0%
Final simplification26.0%
herbie shell --seed 2024055
(FPCore (x y z)
:name "Optimisation.CirclePacking:place from circle-packing-0.1.0.4, H"
:precision binary64
(* (+ x y) (- 1.0 z)))