
(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 (- (+ x y) (* z (+ x y))))
double code(double x, double y, double z) {
return (x + y) - (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 + y) - (z * (x + y))
end function
public static double code(double x, double y, double z) {
return (x + y) - (z * (x + y));
}
def code(x, y, z): return (x + y) - (z * (x + y))
function code(x, y, z) return Float64(Float64(x + y) - Float64(z * Float64(x + y))) end
function tmp = code(x, y, z) tmp = (x + y) - (z * (x + y)); end
code[x_, y_, z_] := N[(N[(x + y), $MachinePrecision] - N[(z * N[(x + y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\left(x + y\right) - z \cdot \left(x + y\right)
\end{array}
Initial program 100.0%
sub-neg100.0%
distribute-lft-in100.0%
*-commutative100.0%
*-un-lft-identity100.0%
Applied egg-rr100.0%
Final simplification100.0%
(FPCore (x y z)
:precision binary64
(let* ((t_0 (* x (- z))))
(if (<= (- 1.0 z) -4e+145)
t_0
(if (<= (- 1.0 z) -5e+109)
(* y (- z))
(if (or (<= (- 1.0 z) -1e+15) (not (<= (- 1.0 z) 2.0))) t_0 (+ x y))))))
double code(double x, double y, double z) {
double t_0 = x * -z;
double tmp;
if ((1.0 - z) <= -4e+145) {
tmp = t_0;
} else if ((1.0 - z) <= -5e+109) {
tmp = y * -z;
} else if (((1.0 - z) <= -1e+15) || !((1.0 - z) <= 2.0)) {
tmp = t_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) :: t_0
real(8) :: tmp
t_0 = x * -z
if ((1.0d0 - z) <= (-4d+145)) then
tmp = t_0
else if ((1.0d0 - z) <= (-5d+109)) then
tmp = y * -z
else if (((1.0d0 - z) <= (-1d+15)) .or. (.not. ((1.0d0 - z) <= 2.0d0))) then
tmp = t_0
else
tmp = x + y
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double t_0 = x * -z;
double tmp;
if ((1.0 - z) <= -4e+145) {
tmp = t_0;
} else if ((1.0 - z) <= -5e+109) {
tmp = y * -z;
} else if (((1.0 - z) <= -1e+15) || !((1.0 - z) <= 2.0)) {
tmp = t_0;
} else {
tmp = x + y;
}
return tmp;
}
def code(x, y, z): t_0 = x * -z tmp = 0 if (1.0 - z) <= -4e+145: tmp = t_0 elif (1.0 - z) <= -5e+109: tmp = y * -z elif ((1.0 - z) <= -1e+15) or not ((1.0 - z) <= 2.0): tmp = t_0 else: tmp = x + y return tmp
function code(x, y, z) t_0 = Float64(x * Float64(-z)) tmp = 0.0 if (Float64(1.0 - z) <= -4e+145) tmp = t_0; elseif (Float64(1.0 - z) <= -5e+109) tmp = Float64(y * Float64(-z)); elseif ((Float64(1.0 - z) <= -1e+15) || !(Float64(1.0 - z) <= 2.0)) tmp = t_0; else tmp = Float64(x + y); end return tmp end
function tmp_2 = code(x, y, z) t_0 = x * -z; tmp = 0.0; if ((1.0 - z) <= -4e+145) tmp = t_0; elseif ((1.0 - z) <= -5e+109) tmp = y * -z; elseif (((1.0 - z) <= -1e+15) || ~(((1.0 - z) <= 2.0))) tmp = t_0; else tmp = x + y; end tmp_2 = tmp; end
code[x_, y_, z_] := Block[{t$95$0 = N[(x * (-z)), $MachinePrecision]}, If[LessEqual[N[(1.0 - z), $MachinePrecision], -4e+145], t$95$0, If[LessEqual[N[(1.0 - z), $MachinePrecision], -5e+109], N[(y * (-z)), $MachinePrecision], If[Or[LessEqual[N[(1.0 - z), $MachinePrecision], -1e+15], N[Not[LessEqual[N[(1.0 - z), $MachinePrecision], 2.0]], $MachinePrecision]], t$95$0, N[(x + y), $MachinePrecision]]]]]
\begin{array}{l}
\\
\begin{array}{l}
t_0 := x \cdot \left(-z\right)\\
\mathbf{if}\;1 - z \leq -4 \cdot 10^{+145}:\\
\;\;\;\;t_0\\
\mathbf{elif}\;1 - z \leq -5 \cdot 10^{+109}:\\
\;\;\;\;y \cdot \left(-z\right)\\
\mathbf{elif}\;1 - z \leq -1 \cdot 10^{+15} \lor \neg \left(1 - z \leq 2\right):\\
\;\;\;\;t_0\\
\mathbf{else}:\\
\;\;\;\;x + y\\
\end{array}
\end{array}
if (-.f64 1 z) < -4e145 or -5.0000000000000001e109 < (-.f64 1 z) < -1e15 or 2 < (-.f64 1 z) Initial program 100.0%
Taylor expanded in z around inf 99.3%
associate-*r*99.3%
neg-mul-199.3%
*-commutative99.3%
+-commutative99.3%
Simplified99.3%
Taylor expanded in y around 0 54.0%
associate-*r*54.0%
mul-1-neg54.0%
Simplified54.0%
if -4e145 < (-.f64 1 z) < -5.0000000000000001e109Initial program 100.0%
Taylor expanded in z around inf 100.0%
associate-*r*100.0%
neg-mul-1100.0%
*-commutative100.0%
+-commutative100.0%
Simplified100.0%
Taylor expanded in y around inf 46.9%
associate-*r*46.9%
mul-1-neg46.9%
Simplified46.9%
if -1e15 < (-.f64 1 z) < 2Initial program 100.0%
Taylor expanded in z around 0 97.4%
+-commutative97.4%
Simplified97.4%
Final simplification77.1%
(FPCore (x y z) :precision binary64 (if (or (<= (- 1.0 z) -1e+15) (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) <= -1e+15) || !((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) <= (-1d+15)) .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) <= -1e+15) || !((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) <= -1e+15) 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) <= -1e+15) || !(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) <= -1e+15) || ~(((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], -1e+15], 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 -1 \cdot 10^{+15} \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) < -1e15 or 2 < (-.f64 1 z) Initial program 100.0%
Taylor expanded in z around inf 99.4%
associate-*r*99.4%
neg-mul-199.4%
*-commutative99.4%
+-commutative99.4%
Simplified99.4%
if -1e15 < (-.f64 1 z) < 2Initial program 100.0%
Taylor expanded in z around 0 97.4%
+-commutative97.4%
Simplified97.4%
Final simplification98.3%
(FPCore (x y z) :precision binary64 (if (or (<= z -32.0) (not (<= z 1.0))) (* x (- z)) (+ x y)))
double code(double x, double y, double z) {
double tmp;
if ((z <= -32.0) || !(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 <= (-32.0d0)) .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 <= -32.0) || !(z <= 1.0)) {
tmp = x * -z;
} else {
tmp = x + y;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (z <= -32.0) or not (z <= 1.0): tmp = x * -z else: tmp = x + y return tmp
function code(x, y, z) tmp = 0.0 if ((z <= -32.0) || !(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 <= -32.0) || ~((z <= 1.0))) tmp = x * -z; else tmp = x + y; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[z, -32.0], 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 -32 \lor \neg \left(z \leq 1\right):\\
\;\;\;\;x \cdot \left(-z\right)\\
\mathbf{else}:\\
\;\;\;\;x + y\\
\end{array}
\end{array}
if z < -32 or 1 < z Initial program 100.0%
Taylor expanded in z around inf 99.4%
associate-*r*99.4%
neg-mul-199.4%
*-commutative99.4%
+-commutative99.4%
Simplified99.4%
Taylor expanded in y around 0 54.1%
associate-*r*54.1%
mul-1-neg54.1%
Simplified54.1%
if -32 < z < 1Initial program 100.0%
Taylor expanded in z around 0 97.4%
+-commutative97.4%
Simplified97.4%
Final simplification77.4%
(FPCore (x y z) :precision binary64 (if (<= y 7e-12) (* x (- 1.0 z)) (* y (- 1.0 z))))
double code(double x, double y, double z) {
double tmp;
if (y <= 7e-12) {
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 (y <= 7d-12) 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 (y <= 7e-12) {
tmp = x * (1.0 - z);
} else {
tmp = y * (1.0 - z);
}
return tmp;
}
def code(x, y, z): tmp = 0 if y <= 7e-12: tmp = x * (1.0 - z) else: tmp = y * (1.0 - z) return tmp
function code(x, y, z) tmp = 0.0 if (y <= 7e-12) 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 (y <= 7e-12) tmp = x * (1.0 - z); else tmp = y * (1.0 - z); end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[y, 7e-12], N[(x * N[(1.0 - z), $MachinePrecision]), $MachinePrecision], N[(y * N[(1.0 - z), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \leq 7 \cdot 10^{-12}:\\
\;\;\;\;x \cdot \left(1 - z\right)\\
\mathbf{else}:\\
\;\;\;\;y \cdot \left(1 - z\right)\\
\end{array}
\end{array}
if y < 7.0000000000000001e-12Initial program 100.0%
Taylor expanded in x around inf 59.5%
*-commutative59.5%
Simplified59.5%
if 7.0000000000000001e-12 < y Initial program 100.0%
Taylor expanded in x around 0 78.3%
Final simplification64.1%
(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 (+ 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 54.0%
+-commutative54.0%
Simplified54.0%
Final simplification54.0%
(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 52.3%
*-commutative52.3%
Simplified52.3%
Taylor expanded in z around 0 27.6%
Final simplification27.6%
herbie shell --seed 2024024
(FPCore (x y z)
:name "Optimisation.CirclePacking:place from circle-packing-0.1.0.4, H"
:precision binary64
(* (+ x y) (- 1.0 z)))