
(FPCore (x y) :precision binary64 (/ (* (- 1.0 x) (- 3.0 x)) (* y 3.0)))
double code(double x, double y) {
return ((1.0 - x) * (3.0 - x)) / (y * 3.0);
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
code = ((1.0d0 - x) * (3.0d0 - x)) / (y * 3.0d0)
end function
public static double code(double x, double y) {
return ((1.0 - x) * (3.0 - x)) / (y * 3.0);
}
def code(x, y): return ((1.0 - x) * (3.0 - x)) / (y * 3.0)
function code(x, y) return Float64(Float64(Float64(1.0 - x) * Float64(3.0 - x)) / Float64(y * 3.0)) end
function tmp = code(x, y) tmp = ((1.0 - x) * (3.0 - x)) / (y * 3.0); end
code[x_, y_] := N[(N[(N[(1.0 - x), $MachinePrecision] * N[(3.0 - x), $MachinePrecision]), $MachinePrecision] / N[(y * 3.0), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\frac{\left(1 - x\right) \cdot \left(3 - x\right)}{y \cdot 3}
\end{array}
Sampling outcomes in binary64 precision:
Herbie found 3 alternatives:
| Alternative | Accuracy | Speedup |
|---|
(FPCore (x y) :precision binary64 (/ (* (- 1.0 x) (- 3.0 x)) (* y 3.0)))
double code(double x, double y) {
return ((1.0 - x) * (3.0 - x)) / (y * 3.0);
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
code = ((1.0d0 - x) * (3.0d0 - x)) / (y * 3.0d0)
end function
public static double code(double x, double y) {
return ((1.0 - x) * (3.0 - x)) / (y * 3.0);
}
def code(x, y): return ((1.0 - x) * (3.0 - x)) / (y * 3.0)
function code(x, y) return Float64(Float64(Float64(1.0 - x) * Float64(3.0 - x)) / Float64(y * 3.0)) end
function tmp = code(x, y) tmp = ((1.0 - x) * (3.0 - x)) / (y * 3.0); end
code[x_, y_] := N[(N[(N[(1.0 - x), $MachinePrecision] * N[(3.0 - x), $MachinePrecision]), $MachinePrecision] / N[(y * 3.0), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\frac{\left(1 - x\right) \cdot \left(3 - x\right)}{y \cdot 3}
\end{array}
(FPCore (x y) :precision binary64 (* (- 1.0 x) (/ (* (+ x -3.0) -0.3333333333333333) y)))
double code(double x, double y) {
return (1.0 - x) * (((x + -3.0) * -0.3333333333333333) / y);
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
code = (1.0d0 - x) * (((x + (-3.0d0)) * (-0.3333333333333333d0)) / y)
end function
public static double code(double x, double y) {
return (1.0 - x) * (((x + -3.0) * -0.3333333333333333) / y);
}
def code(x, y): return (1.0 - x) * (((x + -3.0) * -0.3333333333333333) / y)
function code(x, y) return Float64(Float64(1.0 - x) * Float64(Float64(Float64(x + -3.0) * -0.3333333333333333) / y)) end
function tmp = code(x, y) tmp = (1.0 - x) * (((x + -3.0) * -0.3333333333333333) / y); end
code[x_, y_] := N[(N[(1.0 - x), $MachinePrecision] * N[(N[(N[(x + -3.0), $MachinePrecision] * -0.3333333333333333), $MachinePrecision] / y), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\left(1 - x\right) \cdot \frac{\left(x + -3\right) \cdot -0.3333333333333333}{y}
\end{array}
Initial program 94.6%
associate-/l*99.7%
*-rgt-identity99.7%
remove-double-neg99.7%
distribute-lft-neg-out99.7%
neg-mul-199.7%
times-frac99.5%
*-rgt-identity99.5%
associate-/l*99.5%
metadata-eval99.5%
*-commutative99.5%
sub-neg99.5%
+-commutative99.5%
distribute-lft-in99.5%
neg-mul-199.5%
remove-double-neg99.5%
metadata-eval99.5%
distribute-lft-neg-out99.5%
*-commutative99.5%
distribute-lft-neg-in99.5%
associate-/r*99.5%
metadata-eval99.5%
metadata-eval99.5%
Simplified99.5%
associate-*r/99.8%
Applied egg-rr99.8%
(FPCore (x y) :precision binary64 (* (- 1.0 x) (* (+ x -3.0) (/ -0.3333333333333333 y))))
double code(double x, double y) {
return (1.0 - x) * ((x + -3.0) * (-0.3333333333333333 / y));
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
code = (1.0d0 - x) * ((x + (-3.0d0)) * ((-0.3333333333333333d0) / y))
end function
public static double code(double x, double y) {
return (1.0 - x) * ((x + -3.0) * (-0.3333333333333333 / y));
}
def code(x, y): return (1.0 - x) * ((x + -3.0) * (-0.3333333333333333 / y))
function code(x, y) return Float64(Float64(1.0 - x) * Float64(Float64(x + -3.0) * Float64(-0.3333333333333333 / y))) end
function tmp = code(x, y) tmp = (1.0 - x) * ((x + -3.0) * (-0.3333333333333333 / y)); end
code[x_, y_] := N[(N[(1.0 - x), $MachinePrecision] * N[(N[(x + -3.0), $MachinePrecision] * N[(-0.3333333333333333 / y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\left(1 - x\right) \cdot \left(\left(x + -3\right) \cdot \frac{-0.3333333333333333}{y}\right)
\end{array}
Initial program 94.6%
associate-/l*99.7%
*-rgt-identity99.7%
remove-double-neg99.7%
distribute-lft-neg-out99.7%
neg-mul-199.7%
times-frac99.5%
*-rgt-identity99.5%
associate-/l*99.5%
metadata-eval99.5%
*-commutative99.5%
sub-neg99.5%
+-commutative99.5%
distribute-lft-in99.5%
neg-mul-199.5%
remove-double-neg99.5%
metadata-eval99.5%
distribute-lft-neg-out99.5%
*-commutative99.5%
distribute-lft-neg-in99.5%
associate-/r*99.5%
metadata-eval99.5%
metadata-eval99.5%
Simplified99.5%
(FPCore (x y) :precision binary64 (/ (+ 1.0 (* x -1.3333333333333333)) y))
double code(double x, double y) {
return (1.0 + (x * -1.3333333333333333)) / y;
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
code = (1.0d0 + (x * (-1.3333333333333333d0))) / y
end function
public static double code(double x, double y) {
return (1.0 + (x * -1.3333333333333333)) / y;
}
def code(x, y): return (1.0 + (x * -1.3333333333333333)) / y
function code(x, y) return Float64(Float64(1.0 + Float64(x * -1.3333333333333333)) / y) end
function tmp = code(x, y) tmp = (1.0 + (x * -1.3333333333333333)) / y; end
code[x_, y_] := N[(N[(1.0 + N[(x * -1.3333333333333333), $MachinePrecision]), $MachinePrecision] / y), $MachinePrecision]
\begin{array}{l}
\\
\frac{1 + x \cdot -1.3333333333333333}{y}
\end{array}
Initial program 94.6%
associate-/l*99.7%
*-rgt-identity99.7%
remove-double-neg99.7%
distribute-lft-neg-out99.7%
neg-mul-199.7%
times-frac99.5%
*-rgt-identity99.5%
associate-/l*99.5%
metadata-eval99.5%
*-commutative99.5%
sub-neg99.5%
+-commutative99.5%
distribute-lft-in99.5%
neg-mul-199.5%
remove-double-neg99.5%
metadata-eval99.5%
distribute-lft-neg-out99.5%
*-commutative99.5%
distribute-lft-neg-in99.5%
associate-/r*99.5%
metadata-eval99.5%
metadata-eval99.5%
Simplified99.5%
Taylor expanded in x around 0 59.4%
Taylor expanded in y around 0 59.4%
Final simplification59.4%
(FPCore (x y) :precision binary64 (* (/ (- 1.0 x) y) (/ (- 3.0 x) 3.0)))
double code(double x, double y) {
return ((1.0 - x) / y) * ((3.0 - x) / 3.0);
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
code = ((1.0d0 - x) / y) * ((3.0d0 - x) / 3.0d0)
end function
public static double code(double x, double y) {
return ((1.0 - x) / y) * ((3.0 - x) / 3.0);
}
def code(x, y): return ((1.0 - x) / y) * ((3.0 - x) / 3.0)
function code(x, y) return Float64(Float64(Float64(1.0 - x) / y) * Float64(Float64(3.0 - x) / 3.0)) end
function tmp = code(x, y) tmp = ((1.0 - x) / y) * ((3.0 - x) / 3.0); end
code[x_, y_] := N[(N[(N[(1.0 - x), $MachinePrecision] / y), $MachinePrecision] * N[(N[(3.0 - x), $MachinePrecision] / 3.0), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\frac{1 - x}{y} \cdot \frac{3 - x}{3}
\end{array}
herbie shell --seed 2024179
(FPCore (x y)
:name "Diagrams.TwoD.Arc:bezierFromSweepQ1 from diagrams-lib-1.3.0.3"
:precision binary64
:alt
(! :herbie-platform default (* (/ (- 1 x) y) (/ (- 3 x) 3)))
(/ (* (- 1.0 x) (- 3.0 x)) (* y 3.0)))