
(FPCore (x y) :precision binary64 (+ (- 1.0 x) (* y (sqrt x))))
double code(double x, double y) {
return (1.0 - x) + (y * sqrt(x));
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
code = (1.0d0 - x) + (y * sqrt(x))
end function
public static double code(double x, double y) {
return (1.0 - x) + (y * Math.sqrt(x));
}
def code(x, y): return (1.0 - x) + (y * math.sqrt(x))
function code(x, y) return Float64(Float64(1.0 - x) + Float64(y * sqrt(x))) end
function tmp = code(x, y) tmp = (1.0 - x) + (y * sqrt(x)); end
code[x_, y_] := N[(N[(1.0 - x), $MachinePrecision] + N[(y * N[Sqrt[x], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\left(1 - x\right) + y \cdot \sqrt{x}
\end{array}
Sampling outcomes in binary64 precision:
Herbie found 7 alternatives:
| Alternative | Accuracy | Speedup |
|---|
(FPCore (x y) :precision binary64 (+ (- 1.0 x) (* y (sqrt x))))
double code(double x, double y) {
return (1.0 - x) + (y * sqrt(x));
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
code = (1.0d0 - x) + (y * sqrt(x))
end function
public static double code(double x, double y) {
return (1.0 - x) + (y * Math.sqrt(x));
}
def code(x, y): return (1.0 - x) + (y * math.sqrt(x))
function code(x, y) return Float64(Float64(1.0 - x) + Float64(y * sqrt(x))) end
function tmp = code(x, y) tmp = (1.0 - x) + (y * sqrt(x)); end
code[x_, y_] := N[(N[(1.0 - x), $MachinePrecision] + N[(y * N[Sqrt[x], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\left(1 - x\right) + y \cdot \sqrt{x}
\end{array}
(FPCore (x y) :precision binary64 (+ (- 1.0 x) (* y (sqrt x))))
double code(double x, double y) {
return (1.0 - x) + (y * sqrt(x));
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
code = (1.0d0 - x) + (y * sqrt(x))
end function
public static double code(double x, double y) {
return (1.0 - x) + (y * Math.sqrt(x));
}
def code(x, y): return (1.0 - x) + (y * math.sqrt(x))
function code(x, y) return Float64(Float64(1.0 - x) + Float64(y * sqrt(x))) end
function tmp = code(x, y) tmp = (1.0 - x) + (y * sqrt(x)); end
code[x_, y_] := N[(N[(1.0 - x), $MachinePrecision] + N[(y * N[Sqrt[x], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\left(1 - x\right) + y \cdot \sqrt{x}
\end{array}
Initial program 99.9%
Final simplification99.9%
(FPCore (x y) :precision binary64 (if (or (<= y -2.3e+40) (not (<= y 2.6e+30))) (+ 1.0 (* y (sqrt x))) (- 1.0 x)))
double code(double x, double y) {
double tmp;
if ((y <= -2.3e+40) || !(y <= 2.6e+30)) {
tmp = 1.0 + (y * sqrt(x));
} else {
tmp = 1.0 - x;
}
return tmp;
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8) :: tmp
if ((y <= (-2.3d+40)) .or. (.not. (y <= 2.6d+30))) then
tmp = 1.0d0 + (y * sqrt(x))
else
tmp = 1.0d0 - x
end if
code = tmp
end function
public static double code(double x, double y) {
double tmp;
if ((y <= -2.3e+40) || !(y <= 2.6e+30)) {
tmp = 1.0 + (y * Math.sqrt(x));
} else {
tmp = 1.0 - x;
}
return tmp;
}
def code(x, y): tmp = 0 if (y <= -2.3e+40) or not (y <= 2.6e+30): tmp = 1.0 + (y * math.sqrt(x)) else: tmp = 1.0 - x return tmp
function code(x, y) tmp = 0.0 if ((y <= -2.3e+40) || !(y <= 2.6e+30)) tmp = Float64(1.0 + Float64(y * sqrt(x))); else tmp = Float64(1.0 - x); end return tmp end
function tmp_2 = code(x, y) tmp = 0.0; if ((y <= -2.3e+40) || ~((y <= 2.6e+30))) tmp = 1.0 + (y * sqrt(x)); else tmp = 1.0 - x; end tmp_2 = tmp; end
code[x_, y_] := If[Or[LessEqual[y, -2.3e+40], N[Not[LessEqual[y, 2.6e+30]], $MachinePrecision]], N[(1.0 + N[(y * N[Sqrt[x], $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(1.0 - x), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \leq -2.3 \cdot 10^{+40} \lor \neg \left(y \leq 2.6 \cdot 10^{+30}\right):\\
\;\;\;\;1 + y \cdot \sqrt{x}\\
\mathbf{else}:\\
\;\;\;\;1 - x\\
\end{array}
\end{array}
if y < -2.29999999999999994e40 or 2.59999999999999988e30 < y Initial program 99.7%
+-commutative99.7%
*-commutative99.7%
add-sqr-sqrt99.3%
associate-*l*99.3%
fma-def99.3%
pow1/299.3%
sqrt-pow199.4%
metadata-eval99.4%
pow1/299.4%
sqrt-pow199.3%
metadata-eval99.3%
Applied egg-rr99.3%
Taylor expanded in x around 0 95.3%
if -2.29999999999999994e40 < y < 2.59999999999999988e30Initial program 100.0%
Taylor expanded in y around 0 99.8%
Final simplification97.8%
(FPCore (x y) :precision binary64 (if (or (<= y -1.25e+101) (not (<= y 6.5e+43))) (* y (sqrt x)) (- 1.0 x)))
double code(double x, double y) {
double tmp;
if ((y <= -1.25e+101) || !(y <= 6.5e+43)) {
tmp = y * sqrt(x);
} else {
tmp = 1.0 - x;
}
return tmp;
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8) :: tmp
if ((y <= (-1.25d+101)) .or. (.not. (y <= 6.5d+43))) then
tmp = y * sqrt(x)
else
tmp = 1.0d0 - x
end if
code = tmp
end function
public static double code(double x, double y) {
double tmp;
if ((y <= -1.25e+101) || !(y <= 6.5e+43)) {
tmp = y * Math.sqrt(x);
} else {
tmp = 1.0 - x;
}
return tmp;
}
def code(x, y): tmp = 0 if (y <= -1.25e+101) or not (y <= 6.5e+43): tmp = y * math.sqrt(x) else: tmp = 1.0 - x return tmp
function code(x, y) tmp = 0.0 if ((y <= -1.25e+101) || !(y <= 6.5e+43)) tmp = Float64(y * sqrt(x)); else tmp = Float64(1.0 - x); end return tmp end
function tmp_2 = code(x, y) tmp = 0.0; if ((y <= -1.25e+101) || ~((y <= 6.5e+43))) tmp = y * sqrt(x); else tmp = 1.0 - x; end tmp_2 = tmp; end
code[x_, y_] := If[Or[LessEqual[y, -1.25e+101], N[Not[LessEqual[y, 6.5e+43]], $MachinePrecision]], N[(y * N[Sqrt[x], $MachinePrecision]), $MachinePrecision], N[(1.0 - x), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \leq -1.25 \cdot 10^{+101} \lor \neg \left(y \leq 6.5 \cdot 10^{+43}\right):\\
\;\;\;\;y \cdot \sqrt{x}\\
\mathbf{else}:\\
\;\;\;\;1 - x\\
\end{array}
\end{array}
if y < -1.24999999999999997e101 or 6.4999999999999998e43 < y Initial program 99.7%
+-commutative99.7%
*-commutative99.7%
add-sqr-sqrt99.2%
associate-*l*99.3%
fma-def99.3%
pow1/299.3%
sqrt-pow199.4%
metadata-eval99.4%
pow1/299.4%
sqrt-pow199.3%
metadata-eval99.3%
Applied egg-rr99.3%
Taylor expanded in y around inf 92.0%
if -1.24999999999999997e101 < y < 6.4999999999999998e43Initial program 100.0%
Taylor expanded in y around 0 97.2%
Final simplification95.0%
(FPCore (x y) :precision binary64 (if (<= y -2.9e+176) (/ (- 1.0 (* x x)) (+ 1.0 x)) (- 1.0 x)))
double code(double x, double y) {
double tmp;
if (y <= -2.9e+176) {
tmp = (1.0 - (x * x)) / (1.0 + x);
} else {
tmp = 1.0 - x;
}
return tmp;
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8) :: tmp
if (y <= (-2.9d+176)) then
tmp = (1.0d0 - (x * x)) / (1.0d0 + x)
else
tmp = 1.0d0 - x
end if
code = tmp
end function
public static double code(double x, double y) {
double tmp;
if (y <= -2.9e+176) {
tmp = (1.0 - (x * x)) / (1.0 + x);
} else {
tmp = 1.0 - x;
}
return tmp;
}
def code(x, y): tmp = 0 if y <= -2.9e+176: tmp = (1.0 - (x * x)) / (1.0 + x) else: tmp = 1.0 - x return tmp
function code(x, y) tmp = 0.0 if (y <= -2.9e+176) tmp = Float64(Float64(1.0 - Float64(x * x)) / Float64(1.0 + x)); else tmp = Float64(1.0 - x); end return tmp end
function tmp_2 = code(x, y) tmp = 0.0; if (y <= -2.9e+176) tmp = (1.0 - (x * x)) / (1.0 + x); else tmp = 1.0 - x; end tmp_2 = tmp; end
code[x_, y_] := If[LessEqual[y, -2.9e+176], N[(N[(1.0 - N[(x * x), $MachinePrecision]), $MachinePrecision] / N[(1.0 + x), $MachinePrecision]), $MachinePrecision], N[(1.0 - x), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \leq -2.9 \cdot 10^{+176}:\\
\;\;\;\;\frac{1 - x \cdot x}{1 + x}\\
\mathbf{else}:\\
\;\;\;\;1 - x\\
\end{array}
\end{array}
if y < -2.9000000000000001e176Initial program 99.7%
Taylor expanded in y around 0 3.6%
sub-neg3.6%
flip-+24.4%
metadata-eval24.4%
Applied egg-rr24.4%
if -2.9000000000000001e176 < y Initial program 99.9%
Taylor expanded in y around 0 66.3%
Final simplification61.9%
(FPCore (x y) :precision binary64 (if (<= x 3e-8) 1.0 (- x)))
double code(double x, double y) {
double tmp;
if (x <= 3e-8) {
tmp = 1.0;
} else {
tmp = -x;
}
return tmp;
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8) :: tmp
if (x <= 3d-8) then
tmp = 1.0d0
else
tmp = -x
end if
code = tmp
end function
public static double code(double x, double y) {
double tmp;
if (x <= 3e-8) {
tmp = 1.0;
} else {
tmp = -x;
}
return tmp;
}
def code(x, y): tmp = 0 if x <= 3e-8: tmp = 1.0 else: tmp = -x return tmp
function code(x, y) tmp = 0.0 if (x <= 3e-8) tmp = 1.0; else tmp = Float64(-x); end return tmp end
function tmp_2 = code(x, y) tmp = 0.0; if (x <= 3e-8) tmp = 1.0; else tmp = -x; end tmp_2 = tmp; end
code[x_, y_] := If[LessEqual[x, 3e-8], 1.0, (-x)]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq 3 \cdot 10^{-8}:\\
\;\;\;\;1\\
\mathbf{else}:\\
\;\;\;\;-x\\
\end{array}
\end{array}
if x < 2.99999999999999973e-8Initial program 99.8%
Taylor expanded in x around 0 56.8%
if 2.99999999999999973e-8 < x Initial program 99.9%
Taylor expanded in x around inf 59.7%
mul-1-neg59.7%
Simplified59.7%
Final simplification58.5%
(FPCore (x y) :precision binary64 (- 1.0 x))
double code(double x, double y) {
return 1.0 - x;
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
code = 1.0d0 - x
end function
public static double code(double x, double y) {
return 1.0 - x;
}
def code(x, y): return 1.0 - x
function code(x, y) return Float64(1.0 - x) end
function tmp = code(x, y) tmp = 1.0 - x; end
code[x_, y_] := N[(1.0 - x), $MachinePrecision]
\begin{array}{l}
\\
1 - x
\end{array}
Initial program 99.9%
Taylor expanded in y around 0 59.7%
Final simplification59.7%
(FPCore (x y) :precision binary64 1.0)
double code(double x, double y) {
return 1.0;
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
code = 1.0d0
end function
public static double code(double x, double y) {
return 1.0;
}
def code(x, y): return 1.0
function code(x, y) return 1.0 end
function tmp = code(x, y) tmp = 1.0; end
code[x_, y_] := 1.0
\begin{array}{l}
\\
1
\end{array}
Initial program 99.9%
Taylor expanded in x around 0 25.8%
Final simplification25.8%
herbie shell --seed 2024096
(FPCore (x y)
:name "Numeric.SpecFunctions:invIncompleteBetaWorker from math-functions-0.1.5.2, E"
:precision binary64
(+ (- 1.0 x) (* y (sqrt x))))