
(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 (* (- 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 -3.55e+261)
(* y (- z))
(if (<= z -2.4e+196)
t_0
(if (<= z -1.25e-7) (* y (- 1.0 z)) (if (<= z 1.0) (+ x y) t_0))))))
double code(double x, double y, double z) {
double t_0 = x * -z;
double tmp;
if (z <= -3.55e+261) {
tmp = y * -z;
} else if (z <= -2.4e+196) {
tmp = t_0;
} else if (z <= -1.25e-7) {
tmp = y * (1.0 - z);
} else if (z <= 1.0) {
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 = x * -z
if (z <= (-3.55d+261)) then
tmp = y * -z
else if (z <= (-2.4d+196)) then
tmp = t_0
else if (z <= (-1.25d-7)) then
tmp = y * (1.0d0 - z)
else if (z <= 1.0d0) 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 = x * -z;
double tmp;
if (z <= -3.55e+261) {
tmp = y * -z;
} else if (z <= -2.4e+196) {
tmp = t_0;
} else if (z <= -1.25e-7) {
tmp = y * (1.0 - z);
} else if (z <= 1.0) {
tmp = x + y;
} else {
tmp = t_0;
}
return tmp;
}
def code(x, y, z): t_0 = x * -z tmp = 0 if z <= -3.55e+261: tmp = y * -z elif z <= -2.4e+196: tmp = t_0 elif z <= -1.25e-7: tmp = y * (1.0 - z) elif z <= 1.0: tmp = x + y else: tmp = t_0 return tmp
function code(x, y, z) t_0 = Float64(x * Float64(-z)) tmp = 0.0 if (z <= -3.55e+261) tmp = Float64(y * Float64(-z)); elseif (z <= -2.4e+196) tmp = t_0; elseif (z <= -1.25e-7) tmp = Float64(y * Float64(1.0 - z)); elseif (z <= 1.0) tmp = Float64(x + y); else tmp = t_0; end return tmp end
function tmp_2 = code(x, y, z) t_0 = x * -z; tmp = 0.0; if (z <= -3.55e+261) tmp = y * -z; elseif (z <= -2.4e+196) tmp = t_0; elseif (z <= -1.25e-7) tmp = y * (1.0 - z); elseif (z <= 1.0) tmp = x + y; else tmp = t_0; end tmp_2 = tmp; end
code[x_, y_, z_] := Block[{t$95$0 = N[(x * (-z)), $MachinePrecision]}, If[LessEqual[z, -3.55e+261], N[(y * (-z)), $MachinePrecision], If[LessEqual[z, -2.4e+196], t$95$0, If[LessEqual[z, -1.25e-7], N[(y * N[(1.0 - z), $MachinePrecision]), $MachinePrecision], If[LessEqual[z, 1.0], N[(x + y), $MachinePrecision], t$95$0]]]]]
\begin{array}{l}
\\
\begin{array}{l}
t_0 := x \cdot \left(-z\right)\\
\mathbf{if}\;z \leq -3.55 \cdot 10^{+261}:\\
\;\;\;\;y \cdot \left(-z\right)\\
\mathbf{elif}\;z \leq -2.4 \cdot 10^{+196}:\\
\;\;\;\;t\_0\\
\mathbf{elif}\;z \leq -1.25 \cdot 10^{-7}:\\
\;\;\;\;y \cdot \left(1 - z\right)\\
\mathbf{elif}\;z \leq 1:\\
\;\;\;\;x + y\\
\mathbf{else}:\\
\;\;\;\;t\_0\\
\end{array}
\end{array}
if z < -3.55000000000000007e261Initial program 100.0%
Taylor expanded in z around inf 100.0%
neg-mul-1100.0%
Simplified100.0%
Taylor expanded in x around 0 45.4%
associate-*r*45.4%
mul-1-neg45.4%
Simplified45.4%
if -3.55000000000000007e261 < z < -2.4e196 or 1 < z Initial program 100.0%
Taylor expanded in x around inf 57.7%
*-commutative57.7%
Simplified57.7%
Taylor expanded in z around inf 56.3%
neg-mul-197.0%
Simplified56.3%
if -2.4e196 < z < -1.24999999999999994e-7Initial program 100.0%
Taylor expanded in x around 0 59.5%
if -1.24999999999999994e-7 < z < 1Initial program 100.0%
Taylor expanded in z around 0 98.4%
+-commutative98.4%
Simplified98.4%
Final simplification77.1%
(FPCore (x y z)
:precision binary64
(let* ((t_0 (* y (- z))) (t_1 (* x (- z))))
(if (<= z -2.32e+260)
t_0
(if (<= z -3.6e+196)
t_1
(if (<= z -8500000000000.0) t_0 (if (<= z 1.0) (+ x y) t_1))))))
double code(double x, double y, double z) {
double t_0 = y * -z;
double t_1 = x * -z;
double tmp;
if (z <= -2.32e+260) {
tmp = t_0;
} else if (z <= -3.6e+196) {
tmp = t_1;
} else if (z <= -8500000000000.0) {
tmp = t_0;
} else if (z <= 1.0) {
tmp = x + y;
} else {
tmp = t_1;
}
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) :: t_1
real(8) :: tmp
t_0 = y * -z
t_1 = x * -z
if (z <= (-2.32d+260)) then
tmp = t_0
else if (z <= (-3.6d+196)) then
tmp = t_1
else if (z <= (-8500000000000.0d0)) then
tmp = t_0
else if (z <= 1.0d0) then
tmp = x + y
else
tmp = t_1
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double t_0 = y * -z;
double t_1 = x * -z;
double tmp;
if (z <= -2.32e+260) {
tmp = t_0;
} else if (z <= -3.6e+196) {
tmp = t_1;
} else if (z <= -8500000000000.0) {
tmp = t_0;
} else if (z <= 1.0) {
tmp = x + y;
} else {
tmp = t_1;
}
return tmp;
}
def code(x, y, z): t_0 = y * -z t_1 = x * -z tmp = 0 if z <= -2.32e+260: tmp = t_0 elif z <= -3.6e+196: tmp = t_1 elif z <= -8500000000000.0: tmp = t_0 elif z <= 1.0: tmp = x + y else: tmp = t_1 return tmp
function code(x, y, z) t_0 = Float64(y * Float64(-z)) t_1 = Float64(x * Float64(-z)) tmp = 0.0 if (z <= -2.32e+260) tmp = t_0; elseif (z <= -3.6e+196) tmp = t_1; elseif (z <= -8500000000000.0) tmp = t_0; elseif (z <= 1.0) tmp = Float64(x + y); else tmp = t_1; end return tmp end
function tmp_2 = code(x, y, z) t_0 = y * -z; t_1 = x * -z; tmp = 0.0; if (z <= -2.32e+260) tmp = t_0; elseif (z <= -3.6e+196) tmp = t_1; elseif (z <= -8500000000000.0) tmp = t_0; elseif (z <= 1.0) tmp = x + y; else tmp = t_1; end tmp_2 = tmp; end
code[x_, y_, z_] := Block[{t$95$0 = N[(y * (-z)), $MachinePrecision]}, Block[{t$95$1 = N[(x * (-z)), $MachinePrecision]}, If[LessEqual[z, -2.32e+260], t$95$0, If[LessEqual[z, -3.6e+196], t$95$1, If[LessEqual[z, -8500000000000.0], t$95$0, If[LessEqual[z, 1.0], N[(x + y), $MachinePrecision], t$95$1]]]]]]
\begin{array}{l}
\\
\begin{array}{l}
t_0 := y \cdot \left(-z\right)\\
t_1 := x \cdot \left(-z\right)\\
\mathbf{if}\;z \leq -2.32 \cdot 10^{+260}:\\
\;\;\;\;t\_0\\
\mathbf{elif}\;z \leq -3.6 \cdot 10^{+196}:\\
\;\;\;\;t\_1\\
\mathbf{elif}\;z \leq -8500000000000:\\
\;\;\;\;t\_0\\
\mathbf{elif}\;z \leq 1:\\
\;\;\;\;x + y\\
\mathbf{else}:\\
\;\;\;\;t\_1\\
\end{array}
\end{array}
if z < -2.3199999999999999e260 or -3.60000000000000007e196 < z < -8.5e12Initial program 100.0%
Taylor expanded in z around inf 100.0%
neg-mul-1100.0%
Simplified100.0%
Taylor expanded in x around 0 59.1%
associate-*r*59.1%
mul-1-neg59.1%
Simplified59.1%
if -2.3199999999999999e260 < z < -3.60000000000000007e196 or 1 < z Initial program 100.0%
Taylor expanded in x around inf 57.7%
*-commutative57.7%
Simplified57.7%
Taylor expanded in z around inf 56.3%
neg-mul-197.0%
Simplified56.3%
if -8.5e12 < z < 1Initial program 100.0%
Taylor expanded in z around 0 94.2%
+-commutative94.2%
Simplified94.2%
Final simplification76.4%
(FPCore (x y z) :precision binary64 (if (or (<= z -8500000000000.0) (not (<= z 1.0))) (* y (- z)) (+ x y)))
double code(double x, double y, double z) {
double tmp;
if ((z <= -8500000000000.0) || !(z <= 1.0)) {
tmp = y * -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 <= (-8500000000000.0d0)) .or. (.not. (z <= 1.0d0))) then
tmp = y * -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 <= -8500000000000.0) || !(z <= 1.0)) {
tmp = y * -z;
} else {
tmp = x + y;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (z <= -8500000000000.0) or not (z <= 1.0): tmp = y * -z else: tmp = x + y return tmp
function code(x, y, z) tmp = 0.0 if ((z <= -8500000000000.0) || !(z <= 1.0)) tmp = Float64(y * Float64(-z)); else tmp = Float64(x + y); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((z <= -8500000000000.0) || ~((z <= 1.0))) tmp = y * -z; else tmp = x + y; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[z, -8500000000000.0], N[Not[LessEqual[z, 1.0]], $MachinePrecision]], N[(y * (-z)), $MachinePrecision], N[(x + y), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;z \leq -8500000000000 \lor \neg \left(z \leq 1\right):\\
\;\;\;\;y \cdot \left(-z\right)\\
\mathbf{else}:\\
\;\;\;\;x + y\\
\end{array}
\end{array}
if z < -8.5e12 or 1 < z Initial program 100.0%
Taylor expanded in z around inf 98.2%
neg-mul-198.2%
Simplified98.2%
Taylor expanded in x around 0 54.3%
associate-*r*54.3%
mul-1-neg54.3%
Simplified54.3%
if -8.5e12 < z < 1Initial program 100.0%
Taylor expanded in z around 0 94.2%
+-commutative94.2%
Simplified94.2%
Final simplification74.9%
(FPCore (x y z) :precision binary64 (if (<= (+ x y) -4e-249) (* x (- 1.0 z)) (* y (- 1.0 z))))
double code(double x, double y, double z) {
double tmp;
if ((x + y) <= -4e-249) {
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 + y) <= (-4d-249)) 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 + y) <= -4e-249) {
tmp = x * (1.0 - z);
} else {
tmp = y * (1.0 - z);
}
return tmp;
}
def code(x, y, z): tmp = 0 if (x + y) <= -4e-249: tmp = x * (1.0 - z) else: tmp = y * (1.0 - z) return tmp
function code(x, y, z) tmp = 0.0 if (Float64(x + y) <= -4e-249) 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 + y) <= -4e-249) tmp = x * (1.0 - z); else tmp = y * (1.0 - z); end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[N[(x + y), $MachinePrecision], -4e-249], 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 + y \leq -4 \cdot 10^{-249}:\\
\;\;\;\;x \cdot \left(1 - z\right)\\
\mathbf{else}:\\
\;\;\;\;y \cdot \left(1 - z\right)\\
\end{array}
\end{array}
if (+.f64 x y) < -4.00000000000000022e-249Initial program 100.0%
Taylor expanded in x around inf 50.8%
*-commutative50.8%
Simplified50.8%
if -4.00000000000000022e-249 < (+.f64 x y) Initial program 100.0%
Taylor expanded in x around 0 49.7%
Final simplification50.2%
(FPCore (x y z) :precision binary64 (if (<= y 7.2e-86) x y))
double code(double x, double y, double z) {
double tmp;
if (y <= 7.2e-86) {
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 (y <= 7.2d-86) 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 (y <= 7.2e-86) {
tmp = x;
} else {
tmp = y;
}
return tmp;
}
def code(x, y, z): tmp = 0 if y <= 7.2e-86: tmp = x else: tmp = y return tmp
function code(x, y, z) tmp = 0.0 if (y <= 7.2e-86) tmp = x; else tmp = y; end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if (y <= 7.2e-86) tmp = x; else tmp = y; end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[y, 7.2e-86], x, y]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \leq 7.2 \cdot 10^{-86}:\\
\;\;\;\;x\\
\mathbf{else}:\\
\;\;\;\;y\\
\end{array}
\end{array}
if y < 7.19999999999999932e-86Initial program 100.0%
Taylor expanded in z around 0 49.0%
+-commutative49.0%
Simplified49.0%
Taylor expanded in y around 0 32.3%
if 7.19999999999999932e-86 < y Initial program 100.0%
Taylor expanded in z around 0 54.0%
+-commutative54.0%
Simplified54.0%
Taylor expanded in y around inf 41.7%
(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 50.4%
+-commutative50.4%
Simplified50.4%
Final simplification50.4%
(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 z around 0 50.4%
+-commutative50.4%
Simplified50.4%
Taylor expanded in y around 0 27.3%
herbie shell --seed 2024176
(FPCore (x y z)
:name "Optimisation.CirclePacking:place from circle-packing-0.1.0.4, H"
:precision binary64
(* (+ x y) (- 1.0 z)))