
(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 7 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 (* z (- (- x) y))))
(if (<= (- 1.0 z) -40000000.0)
t_0
(if (<= (- 1.0 z) 0.99999999)
(* x (- 1.0 z))
(if (<= (- 1.0 z) 2.0) (+ x y) t_0)))))
double code(double x, double y, double z) {
double t_0 = z * (-x - y);
double tmp;
if ((1.0 - z) <= -40000000.0) {
tmp = t_0;
} else if ((1.0 - z) <= 0.99999999) {
tmp = x * (1.0 - z);
} else if ((1.0 - z) <= 2.0) {
tmp = x + y;
} 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 = z * (-x - y)
if ((1.0d0 - z) <= (-40000000.0d0)) then
tmp = t_0
else if ((1.0d0 - z) <= 0.99999999d0) then
tmp = x * (1.0d0 - z)
else if ((1.0d0 - z) <= 2.0d0) then
tmp = x + y
else
tmp = t_0
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double t_0 = z * (-x - y);
double tmp;
if ((1.0 - z) <= -40000000.0) {
tmp = t_0;
} else if ((1.0 - z) <= 0.99999999) {
tmp = x * (1.0 - z);
} else if ((1.0 - z) <= 2.0) {
tmp = x + y;
} else {
tmp = t_0;
}
return tmp;
}
def code(x, y, z): t_0 = z * (-x - y) tmp = 0 if (1.0 - z) <= -40000000.0: tmp = t_0 elif (1.0 - z) <= 0.99999999: tmp = x * (1.0 - z) elif (1.0 - z) <= 2.0: tmp = x + y else: tmp = t_0 return tmp
function code(x, y, z) t_0 = Float64(z * Float64(Float64(-x) - y)) tmp = 0.0 if (Float64(1.0 - z) <= -40000000.0) tmp = t_0; elseif (Float64(1.0 - z) <= 0.99999999) tmp = Float64(x * Float64(1.0 - z)); elseif (Float64(1.0 - z) <= 2.0) tmp = Float64(x + y); else tmp = t_0; end return tmp end
function tmp_2 = code(x, y, z) t_0 = z * (-x - y); tmp = 0.0; if ((1.0 - z) <= -40000000.0) tmp = t_0; elseif ((1.0 - z) <= 0.99999999) tmp = x * (1.0 - z); elseif ((1.0 - z) <= 2.0) tmp = x + y; else tmp = t_0; end tmp_2 = tmp; end
code[x_, y_, z_] := Block[{t$95$0 = N[(z * N[((-x) - y), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[N[(1.0 - z), $MachinePrecision], -40000000.0], t$95$0, If[LessEqual[N[(1.0 - z), $MachinePrecision], 0.99999999], N[(x * N[(1.0 - z), $MachinePrecision]), $MachinePrecision], If[LessEqual[N[(1.0 - z), $MachinePrecision], 2.0], N[(x + y), $MachinePrecision], t$95$0]]]]
\begin{array}{l}
\\
\begin{array}{l}
t_0 := z \cdot \left(\left(-x\right) - y\right)\\
\mathbf{if}\;1 - z \leq -40000000:\\
\;\;\;\;t\_0\\
\mathbf{elif}\;1 - z \leq 0.99999999:\\
\;\;\;\;x \cdot \left(1 - z\right)\\
\mathbf{elif}\;1 - z \leq 2:\\
\;\;\;\;x + y\\
\mathbf{else}:\\
\;\;\;\;t\_0\\
\end{array}
\end{array}
if (-.f64 #s(literal 1 binary64) z) < -4e7 or 2 < (-.f64 #s(literal 1 binary64) z) Initial program 100.0%
Taylor expanded in z around inf 98.7%
mul-1-neg98.7%
distribute-lft-neg-out98.7%
*-commutative98.7%
+-commutative98.7%
Simplified98.7%
if -4e7 < (-.f64 #s(literal 1 binary64) z) < 0.99999998999999995Initial program 99.8%
Taylor expanded in x around inf 43.2%
*-commutative43.2%
Simplified43.2%
if 0.99999998999999995 < (-.f64 #s(literal 1 binary64) z) < 2Initial program 100.0%
Taylor expanded in z around 0 98.0%
+-commutative98.0%
Simplified98.0%
Final simplification96.9%
(FPCore (x y z)
:precision binary64
(let* ((t_0 (* z (- x))))
(if (<= (- 1.0 z) -2e+166)
t_0
(if (<= (- 1.0 z) -0.2)
(* y (- 1.0 z))
(if (<= (- 1.0 z) 2.0) (+ x y) t_0)))))
double code(double x, double y, double z) {
double t_0 = z * -x;
double tmp;
if ((1.0 - z) <= -2e+166) {
tmp = t_0;
} else if ((1.0 - z) <= -0.2) {
tmp = y * (1.0 - z);
} else if ((1.0 - z) <= 2.0) {
tmp = x + y;
} 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 = z * -x
if ((1.0d0 - z) <= (-2d+166)) then
tmp = t_0
else if ((1.0d0 - z) <= (-0.2d0)) then
tmp = y * (1.0d0 - z)
else if ((1.0d0 - z) <= 2.0d0) then
tmp = x + y
else
tmp = t_0
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double t_0 = z * -x;
double tmp;
if ((1.0 - z) <= -2e+166) {
tmp = t_0;
} else if ((1.0 - z) <= -0.2) {
tmp = y * (1.0 - z);
} else if ((1.0 - z) <= 2.0) {
tmp = x + y;
} else {
tmp = t_0;
}
return tmp;
}
def code(x, y, z): t_0 = z * -x tmp = 0 if (1.0 - z) <= -2e+166: tmp = t_0 elif (1.0 - z) <= -0.2: tmp = y * (1.0 - z) elif (1.0 - z) <= 2.0: tmp = x + y else: tmp = t_0 return tmp
function code(x, y, z) t_0 = Float64(z * Float64(-x)) tmp = 0.0 if (Float64(1.0 - z) <= -2e+166) tmp = t_0; elseif (Float64(1.0 - z) <= -0.2) tmp = Float64(y * Float64(1.0 - z)); elseif (Float64(1.0 - z) <= 2.0) tmp = Float64(x + y); else tmp = t_0; end return tmp end
function tmp_2 = code(x, y, z) t_0 = z * -x; tmp = 0.0; if ((1.0 - z) <= -2e+166) tmp = t_0; elseif ((1.0 - z) <= -0.2) tmp = y * (1.0 - z); elseif ((1.0 - z) <= 2.0) tmp = x + y; else tmp = t_0; end tmp_2 = tmp; end
code[x_, y_, z_] := Block[{t$95$0 = N[(z * (-x)), $MachinePrecision]}, If[LessEqual[N[(1.0 - z), $MachinePrecision], -2e+166], t$95$0, If[LessEqual[N[(1.0 - z), $MachinePrecision], -0.2], N[(y * N[(1.0 - z), $MachinePrecision]), $MachinePrecision], If[LessEqual[N[(1.0 - z), $MachinePrecision], 2.0], N[(x + y), $MachinePrecision], t$95$0]]]]
\begin{array}{l}
\\
\begin{array}{l}
t_0 := z \cdot \left(-x\right)\\
\mathbf{if}\;1 - z \leq -2 \cdot 10^{+166}:\\
\;\;\;\;t\_0\\
\mathbf{elif}\;1 - z \leq -0.2:\\
\;\;\;\;y \cdot \left(1 - z\right)\\
\mathbf{elif}\;1 - z \leq 2:\\
\;\;\;\;x + y\\
\mathbf{else}:\\
\;\;\;\;t\_0\\
\end{array}
\end{array}
if (-.f64 #s(literal 1 binary64) z) < -1.99999999999999988e166 or 2 < (-.f64 #s(literal 1 binary64) z) Initial program 100.0%
sub-neg100.0%
distribute-lft-in100.0%
*-commutative100.0%
*-un-lft-identity100.0%
Applied egg-rr100.0%
Taylor expanded in y around 0 44.5%
Taylor expanded in z around inf 44.3%
mul-1-neg44.3%
distribute-rgt-neg-in44.3%
Simplified44.3%
if -1.99999999999999988e166 < (-.f64 #s(literal 1 binary64) z) < -0.20000000000000001Initial program 100.0%
Taylor expanded in x around 0 56.1%
if -0.20000000000000001 < (-.f64 #s(literal 1 binary64) z) < 2Initial program 100.0%
Taylor expanded in z around 0 96.3%
+-commutative96.3%
Simplified96.3%
Final simplification70.6%
(FPCore (x y z) :precision binary64 (if (or (<= z -24.0) (not (<= z 1.0))) (* z (- x)) (+ x y)))
double code(double x, double y, double z) {
double tmp;
if ((z <= -24.0) || !(z <= 1.0)) {
tmp = z * -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 <= (-24.0d0)) .or. (.not. (z <= 1.0d0))) then
tmp = z * -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 <= -24.0) || !(z <= 1.0)) {
tmp = z * -x;
} else {
tmp = x + y;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (z <= -24.0) or not (z <= 1.0): tmp = z * -x else: tmp = x + y return tmp
function code(x, y, z) tmp = 0.0 if ((z <= -24.0) || !(z <= 1.0)) tmp = Float64(z * Float64(-x)); else tmp = Float64(x + y); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((z <= -24.0) || ~((z <= 1.0))) tmp = z * -x; else tmp = x + y; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[z, -24.0], N[Not[LessEqual[z, 1.0]], $MachinePrecision]], N[(z * (-x)), $MachinePrecision], N[(x + y), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;z \leq -24 \lor \neg \left(z \leq 1\right):\\
\;\;\;\;z \cdot \left(-x\right)\\
\mathbf{else}:\\
\;\;\;\;x + y\\
\end{array}
\end{array}
if z < -24 or 1 < z Initial program 100.0%
sub-neg100.0%
distribute-lft-in100.0%
*-commutative100.0%
*-un-lft-identity100.0%
Applied egg-rr100.0%
Taylor expanded in y around 0 44.8%
Taylor expanded in z around inf 43.5%
mul-1-neg43.5%
distribute-rgt-neg-in43.5%
Simplified43.5%
if -24 < z < 1Initial program 100.0%
Taylor expanded in z around 0 96.3%
+-commutative96.3%
Simplified96.3%
Final simplification68.9%
(FPCore (x y z) :precision binary64 (if (<= x -5.2e-179) (* x (- 1.0 z)) (* y (- 1.0 z))))
double code(double x, double y, double z) {
double tmp;
if (x <= -5.2e-179) {
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 <= (-5.2d-179)) 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 <= -5.2e-179) {
tmp = x * (1.0 - z);
} else {
tmp = y * (1.0 - z);
}
return tmp;
}
def code(x, y, z): tmp = 0 if x <= -5.2e-179: tmp = x * (1.0 - z) else: tmp = y * (1.0 - z) return tmp
function code(x, y, z) tmp = 0.0 if (x <= -5.2e-179) 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 <= -5.2e-179) tmp = x * (1.0 - z); else tmp = y * (1.0 - z); end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[x, -5.2e-179], 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 -5.2 \cdot 10^{-179}:\\
\;\;\;\;x \cdot \left(1 - z\right)\\
\mathbf{else}:\\
\;\;\;\;y \cdot \left(1 - z\right)\\
\end{array}
\end{array}
if x < -5.20000000000000011e-179Initial program 100.0%
Taylor expanded in x around inf 63.3%
*-commutative63.3%
Simplified63.3%
if -5.20000000000000011e-179 < x Initial program 100.0%
Taylor expanded in x around 0 66.7%
Final simplification65.4%
(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 48.0%
+-commutative48.0%
Simplified48.0%
Final simplification48.0%
(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 47.0%
*-commutative47.0%
Simplified47.0%
Taylor expanded in z around 0 24.1%
herbie shell --seed 2024091
(FPCore (x y z)
:name "Optimisation.CirclePacking:place from circle-packing-0.1.0.4, H"
:precision binary64
(* (+ x y) (- 1.0 z)))