
(FPCore (x y) :precision binary64 (- (+ x y) (* x y)))
double code(double x, double y) {
return (x + y) - (x * y);
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
code = (x + y) - (x * y)
end function
public static double code(double x, double y) {
return (x + y) - (x * y);
}
def code(x, y): return (x + y) - (x * y)
function code(x, y) return Float64(Float64(x + y) - Float64(x * y)) end
function tmp = code(x, y) tmp = (x + y) - (x * y); end
code[x_, y_] := N[(N[(x + y), $MachinePrecision] - N[(x * y), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\left(x + y\right) - x \cdot y
\end{array}
Sampling outcomes in binary64 precision:
Herbie found 7 alternatives:
| Alternative | Accuracy | Speedup |
|---|
(FPCore (x y) :precision binary64 (- (+ x y) (* x y)))
double code(double x, double y) {
return (x + y) - (x * y);
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
code = (x + y) - (x * y)
end function
public static double code(double x, double y) {
return (x + y) - (x * y);
}
def code(x, y): return (x + y) - (x * y)
function code(x, y) return Float64(Float64(x + y) - Float64(x * y)) end
function tmp = code(x, y) tmp = (x + y) - (x * y); end
code[x_, y_] := N[(N[(x + y), $MachinePrecision] - N[(x * y), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\left(x + y\right) - x \cdot y
\end{array}
NOTE: x and y should be sorted in increasing order before calling this function. (FPCore (x y) :precision binary64 (+ y (* x (- 1.0 y))))
assert(x < y);
double code(double x, double y) {
return y + (x * (1.0 - y));
}
NOTE: x and y should be sorted in increasing order before calling this function.
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
code = y + (x * (1.0d0 - y))
end function
assert x < y;
public static double code(double x, double y) {
return y + (x * (1.0 - y));
}
[x, y] = sort([x, y]) def code(x, y): return y + (x * (1.0 - y))
x, y = sort([x, y]) function code(x, y) return Float64(y + Float64(x * Float64(1.0 - y))) end
x, y = num2cell(sort([x, y])){:}
function tmp = code(x, y)
tmp = y + (x * (1.0 - y));
end
NOTE: x and y should be sorted in increasing order before calling this function. code[x_, y_] := N[(y + N[(x * N[(1.0 - y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
[x, y] = \mathsf{sort}([x, y])\\
\\
y + x \cdot \left(1 - y\right)
\end{array}
Initial program 100.0%
associate--l+100.0%
+-commutative100.0%
remove-double-neg100.0%
unsub-neg100.0%
cancel-sign-sub-inv100.0%
associate--l+100.0%
neg-mul-1100.0%
cancel-sign-sub-inv100.0%
distribute-lft-neg-out100.0%
distribute-rgt-neg-out100.0%
*-commutative100.0%
distribute-rgt-out100.0%
+-commutative100.0%
sub-neg100.0%
metadata-eval100.0%
Simplified100.0%
NOTE: x and y should be sorted in increasing order before calling this function. (FPCore (x y) :precision binary64 (if (<= y -30.0) (* y (- x)) (if (<= y 1.0) (+ y x) (* y (- 1.0 x)))))
assert(x < y);
double code(double x, double y) {
double tmp;
if (y <= -30.0) {
tmp = y * -x;
} else if (y <= 1.0) {
tmp = y + x;
} else {
tmp = y * (1.0 - x);
}
return tmp;
}
NOTE: x and y should be sorted in increasing order before calling this function.
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8) :: tmp
if (y <= (-30.0d0)) then
tmp = y * -x
else if (y <= 1.0d0) then
tmp = y + x
else
tmp = y * (1.0d0 - x)
end if
code = tmp
end function
assert x < y;
public static double code(double x, double y) {
double tmp;
if (y <= -30.0) {
tmp = y * -x;
} else if (y <= 1.0) {
tmp = y + x;
} else {
tmp = y * (1.0 - x);
}
return tmp;
}
[x, y] = sort([x, y]) def code(x, y): tmp = 0 if y <= -30.0: tmp = y * -x elif y <= 1.0: tmp = y + x else: tmp = y * (1.0 - x) return tmp
x, y = sort([x, y]) function code(x, y) tmp = 0.0 if (y <= -30.0) tmp = Float64(y * Float64(-x)); elseif (y <= 1.0) tmp = Float64(y + x); else tmp = Float64(y * Float64(1.0 - x)); end return tmp end
x, y = num2cell(sort([x, y])){:}
function tmp_2 = code(x, y)
tmp = 0.0;
if (y <= -30.0)
tmp = y * -x;
elseif (y <= 1.0)
tmp = y + x;
else
tmp = y * (1.0 - x);
end
tmp_2 = tmp;
end
NOTE: x and y should be sorted in increasing order before calling this function. code[x_, y_] := If[LessEqual[y, -30.0], N[(y * (-x)), $MachinePrecision], If[LessEqual[y, 1.0], N[(y + x), $MachinePrecision], N[(y * N[(1.0 - x), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}
[x, y] = \mathsf{sort}([x, y])\\
\\
\begin{array}{l}
\mathbf{if}\;y \leq -30:\\
\;\;\;\;y \cdot \left(-x\right)\\
\mathbf{elif}\;y \leq 1:\\
\;\;\;\;y + x\\
\mathbf{else}:\\
\;\;\;\;y \cdot \left(1 - x\right)\\
\end{array}
\end{array}
if y < -30Initial program 100.0%
associate--l+100.0%
+-commutative100.0%
remove-double-neg100.0%
unsub-neg100.0%
cancel-sign-sub-inv100.0%
associate--l+100.0%
neg-mul-1100.0%
cancel-sign-sub-inv100.0%
distribute-lft-neg-out100.0%
distribute-rgt-neg-out100.0%
*-commutative100.0%
distribute-rgt-out100.0%
+-commutative100.0%
sub-neg100.0%
metadata-eval100.0%
Simplified100.0%
Taylor expanded in y around inf 97.6%
neg-mul-197.6%
sub-neg97.6%
Simplified97.6%
Taylor expanded in x around inf 49.6%
mul-1-neg49.6%
distribute-lft-neg-out49.6%
*-commutative49.6%
Simplified49.6%
if -30 < y < 1Initial program 100.0%
associate--l+100.0%
+-commutative100.0%
remove-double-neg100.0%
unsub-neg100.0%
cancel-sign-sub-inv100.0%
associate--l+100.0%
neg-mul-1100.0%
cancel-sign-sub-inv100.0%
distribute-lft-neg-out100.0%
distribute-rgt-neg-out100.0%
*-commutative100.0%
distribute-rgt-out100.0%
+-commutative100.0%
sub-neg100.0%
metadata-eval100.0%
Simplified100.0%
Taylor expanded in y around 0 98.4%
if 1 < y Initial program 100.0%
associate--l+100.0%
+-commutative100.0%
remove-double-neg100.0%
unsub-neg100.0%
cancel-sign-sub-inv100.0%
associate--l+100.0%
neg-mul-1100.0%
cancel-sign-sub-inv100.0%
distribute-lft-neg-out100.0%
distribute-rgt-neg-out100.0%
*-commutative100.0%
distribute-rgt-out100.0%
+-commutative100.0%
sub-neg100.0%
metadata-eval100.0%
Simplified100.0%
Taylor expanded in y around inf 97.9%
neg-mul-197.9%
sub-neg97.9%
Simplified97.9%
NOTE: x and y should be sorted in increasing order before calling this function. (FPCore (x y) :precision binary64 (if (<= y -30.0) (* y (- x)) (+ y x)))
assert(x < y);
double code(double x, double y) {
double tmp;
if (y <= -30.0) {
tmp = y * -x;
} else {
tmp = y + x;
}
return tmp;
}
NOTE: x and y should be sorted in increasing order before calling this function.
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8) :: tmp
if (y <= (-30.0d0)) then
tmp = y * -x
else
tmp = y + x
end if
code = tmp
end function
assert x < y;
public static double code(double x, double y) {
double tmp;
if (y <= -30.0) {
tmp = y * -x;
} else {
tmp = y + x;
}
return tmp;
}
[x, y] = sort([x, y]) def code(x, y): tmp = 0 if y <= -30.0: tmp = y * -x else: tmp = y + x return tmp
x, y = sort([x, y]) function code(x, y) tmp = 0.0 if (y <= -30.0) tmp = Float64(y * Float64(-x)); else tmp = Float64(y + x); end return tmp end
x, y = num2cell(sort([x, y])){:}
function tmp_2 = code(x, y)
tmp = 0.0;
if (y <= -30.0)
tmp = y * -x;
else
tmp = y + x;
end
tmp_2 = tmp;
end
NOTE: x and y should be sorted in increasing order before calling this function. code[x_, y_] := If[LessEqual[y, -30.0], N[(y * (-x)), $MachinePrecision], N[(y + x), $MachinePrecision]]
\begin{array}{l}
[x, y] = \mathsf{sort}([x, y])\\
\\
\begin{array}{l}
\mathbf{if}\;y \leq -30:\\
\;\;\;\;y \cdot \left(-x\right)\\
\mathbf{else}:\\
\;\;\;\;y + x\\
\end{array}
\end{array}
if y < -30Initial program 100.0%
associate--l+100.0%
+-commutative100.0%
remove-double-neg100.0%
unsub-neg100.0%
cancel-sign-sub-inv100.0%
associate--l+100.0%
neg-mul-1100.0%
cancel-sign-sub-inv100.0%
distribute-lft-neg-out100.0%
distribute-rgt-neg-out100.0%
*-commutative100.0%
distribute-rgt-out100.0%
+-commutative100.0%
sub-neg100.0%
metadata-eval100.0%
Simplified100.0%
Taylor expanded in y around inf 97.6%
neg-mul-197.6%
sub-neg97.6%
Simplified97.6%
Taylor expanded in x around inf 49.6%
mul-1-neg49.6%
distribute-lft-neg-out49.6%
*-commutative49.6%
Simplified49.6%
if -30 < y Initial program 100.0%
associate--l+100.0%
+-commutative100.0%
remove-double-neg100.0%
unsub-neg100.0%
cancel-sign-sub-inv100.0%
associate--l+100.0%
neg-mul-1100.0%
cancel-sign-sub-inv100.0%
distribute-lft-neg-out100.0%
distribute-rgt-neg-out100.0%
*-commutative100.0%
distribute-rgt-out100.0%
+-commutative100.0%
sub-neg100.0%
metadata-eval100.0%
Simplified100.0%
Taylor expanded in y around 0 85.6%
NOTE: x and y should be sorted in increasing order before calling this function. (FPCore (x y) :precision binary64 (if (<= x -1.65e-15) x y))
assert(x < y);
double code(double x, double y) {
double tmp;
if (x <= -1.65e-15) {
tmp = x;
} else {
tmp = y;
}
return tmp;
}
NOTE: x and y should be sorted in increasing order before calling this function.
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8) :: tmp
if (x <= (-1.65d-15)) then
tmp = x
else
tmp = y
end if
code = tmp
end function
assert x < y;
public static double code(double x, double y) {
double tmp;
if (x <= -1.65e-15) {
tmp = x;
} else {
tmp = y;
}
return tmp;
}
[x, y] = sort([x, y]) def code(x, y): tmp = 0 if x <= -1.65e-15: tmp = x else: tmp = y return tmp
x, y = sort([x, y]) function code(x, y) tmp = 0.0 if (x <= -1.65e-15) tmp = x; else tmp = y; end return tmp end
x, y = num2cell(sort([x, y])){:}
function tmp_2 = code(x, y)
tmp = 0.0;
if (x <= -1.65e-15)
tmp = x;
else
tmp = y;
end
tmp_2 = tmp;
end
NOTE: x and y should be sorted in increasing order before calling this function. code[x_, y_] := If[LessEqual[x, -1.65e-15], x, y]
\begin{array}{l}
[x, y] = \mathsf{sort}([x, y])\\
\\
\begin{array}{l}
\mathbf{if}\;x \leq -1.65 \cdot 10^{-15}:\\
\;\;\;\;x\\
\mathbf{else}:\\
\;\;\;\;y\\
\end{array}
\end{array}
if x < -1.65e-15Initial program 100.0%
associate--l+100.0%
+-commutative100.0%
remove-double-neg100.0%
unsub-neg100.0%
cancel-sign-sub-inv100.0%
associate--l+100.0%
neg-mul-1100.0%
cancel-sign-sub-inv100.0%
distribute-lft-neg-out100.0%
distribute-rgt-neg-out100.0%
*-commutative100.0%
distribute-rgt-out100.0%
+-commutative100.0%
sub-neg100.0%
metadata-eval100.0%
Simplified100.0%
Taylor expanded in y around 0 48.7%
Taylor expanded in y around 0 45.4%
if -1.65e-15 < x Initial program 100.0%
associate--l+100.0%
+-commutative100.0%
remove-double-neg100.0%
unsub-neg100.0%
cancel-sign-sub-inv100.0%
associate--l+100.0%
neg-mul-1100.0%
cancel-sign-sub-inv100.0%
distribute-lft-neg-out100.0%
distribute-rgt-neg-out100.0%
*-commutative100.0%
distribute-rgt-out100.0%
+-commutative100.0%
sub-neg100.0%
metadata-eval100.0%
Simplified100.0%
Taylor expanded in x around 0 49.7%
NOTE: x and y should be sorted in increasing order before calling this function. (FPCore (x y) :precision binary64 (+ y x))
assert(x < y);
double code(double x, double y) {
return y + x;
}
NOTE: x and y should be sorted in increasing order before calling this function.
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
code = y + x
end function
assert x < y;
public static double code(double x, double y) {
return y + x;
}
[x, y] = sort([x, y]) def code(x, y): return y + x
x, y = sort([x, y]) function code(x, y) return Float64(y + x) end
x, y = num2cell(sort([x, y])){:}
function tmp = code(x, y)
tmp = y + x;
end
NOTE: x and y should be sorted in increasing order before calling this function. code[x_, y_] := N[(y + x), $MachinePrecision]
\begin{array}{l}
[x, y] = \mathsf{sort}([x, y])\\
\\
y + x
\end{array}
Initial program 100.0%
associate--l+100.0%
+-commutative100.0%
remove-double-neg100.0%
unsub-neg100.0%
cancel-sign-sub-inv100.0%
associate--l+100.0%
neg-mul-1100.0%
cancel-sign-sub-inv100.0%
distribute-lft-neg-out100.0%
distribute-rgt-neg-out100.0%
*-commutative100.0%
distribute-rgt-out100.0%
+-commutative100.0%
sub-neg100.0%
metadata-eval100.0%
Simplified100.0%
Taylor expanded in y around 0 74.8%
NOTE: x and y should be sorted in increasing order before calling this function. (FPCore (x y) :precision binary64 x)
assert(x < y);
double code(double x, double y) {
return x;
}
NOTE: x and y should be sorted in increasing order before calling this function.
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
code = x
end function
assert x < y;
public static double code(double x, double y) {
return x;
}
[x, y] = sort([x, y]) def code(x, y): return x
x, y = sort([x, y]) function code(x, y) return x end
x, y = num2cell(sort([x, y])){:}
function tmp = code(x, y)
tmp = x;
end
NOTE: x and y should be sorted in increasing order before calling this function. code[x_, y_] := x
\begin{array}{l}
[x, y] = \mathsf{sort}([x, y])\\
\\
x
\end{array}
Initial program 100.0%
associate--l+100.0%
+-commutative100.0%
remove-double-neg100.0%
unsub-neg100.0%
cancel-sign-sub-inv100.0%
associate--l+100.0%
neg-mul-1100.0%
cancel-sign-sub-inv100.0%
distribute-lft-neg-out100.0%
distribute-rgt-neg-out100.0%
*-commutative100.0%
distribute-rgt-out100.0%
+-commutative100.0%
sub-neg100.0%
metadata-eval100.0%
Simplified100.0%
Taylor expanded in y around 0 74.8%
Taylor expanded in y around 0 39.7%
NOTE: x and y should be sorted in increasing order before calling this function. (FPCore (x y) :precision binary64 0.0)
assert(x < y);
double code(double x, double y) {
return 0.0;
}
NOTE: x and y should be sorted in increasing order before calling this function.
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
code = 0.0d0
end function
assert x < y;
public static double code(double x, double y) {
return 0.0;
}
[x, y] = sort([x, y]) def code(x, y): return 0.0
x, y = sort([x, y]) function code(x, y) return 0.0 end
x, y = num2cell(sort([x, y])){:}
function tmp = code(x, y)
tmp = 0.0;
end
NOTE: x and y should be sorted in increasing order before calling this function. code[x_, y_] := 0.0
\begin{array}{l}
[x, y] = \mathsf{sort}([x, y])\\
\\
0
\end{array}
Initial program 100.0%
associate--l+100.0%
+-commutative100.0%
remove-double-neg100.0%
unsub-neg100.0%
cancel-sign-sub-inv100.0%
associate--l+100.0%
neg-mul-1100.0%
cancel-sign-sub-inv100.0%
distribute-lft-neg-out100.0%
distribute-rgt-neg-out100.0%
*-commutative100.0%
distribute-rgt-out100.0%
+-commutative100.0%
sub-neg100.0%
metadata-eval100.0%
Simplified100.0%
Taylor expanded in y around inf 61.6%
neg-mul-161.6%
sub-neg61.6%
Simplified61.6%
Taylor expanded in x around inf 26.1%
mul-1-neg26.1%
distribute-lft-neg-out26.1%
*-commutative26.1%
Simplified26.1%
add-log-exp13.3%
add-sqr-sqrt13.3%
sqrt-unprod13.3%
exp-prod13.4%
add-sqr-sqrt6.4%
sqrt-unprod6.9%
sqr-neg6.9%
sqrt-unprod1.7%
add-sqr-sqrt1.9%
pow-flip1.9%
exp-prod1.7%
rgt-mult-inverse2.6%
metadata-eval2.6%
metadata-eval2.6%
Applied egg-rr2.6%
herbie shell --seed 2024179
(FPCore (x y)
:name "Data.Colour.RGBSpace.HSL:hsl from colour-2.3.3, A"
:precision binary64
(- (+ x y) (* x y)))