
(FPCore (x y) :precision binary64 (+ x (* (- 1.0 x) (- 1.0 y))))
double code(double x, double y) {
return x + ((1.0 - x) * (1.0 - y));
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
code = x + ((1.0d0 - x) * (1.0d0 - y))
end function
public static double code(double x, double y) {
return x + ((1.0 - x) * (1.0 - y));
}
def code(x, y): return x + ((1.0 - x) * (1.0 - y))
function code(x, y) return Float64(x + Float64(Float64(1.0 - x) * Float64(1.0 - y))) end
function tmp = code(x, y) tmp = x + ((1.0 - x) * (1.0 - y)); end
code[x_, y_] := N[(x + N[(N[(1.0 - x), $MachinePrecision] * N[(1.0 - y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
x + \left(1 - x\right) \cdot \left(1 - y\right)
\end{array}
Sampling outcomes in binary64 precision:
Herbie found 7 alternatives:
| Alternative | Accuracy | Speedup |
|---|
(FPCore (x y) :precision binary64 (+ x (* (- 1.0 x) (- 1.0 y))))
double code(double x, double y) {
return x + ((1.0 - x) * (1.0 - y));
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
code = x + ((1.0d0 - x) * (1.0d0 - y))
end function
public static double code(double x, double y) {
return x + ((1.0 - x) * (1.0 - y));
}
def code(x, y): return x + ((1.0 - x) * (1.0 - y))
function code(x, y) return Float64(x + Float64(Float64(1.0 - x) * Float64(1.0 - y))) end
function tmp = code(x, y) tmp = x + ((1.0 - x) * (1.0 - y)); end
code[x_, y_] := N[(x + N[(N[(1.0 - x), $MachinePrecision] * N[(1.0 - y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
x + \left(1 - x\right) \cdot \left(1 - y\right)
\end{array}
(FPCore (x y) :precision binary64 (+ 1.0 (- (* y x) y)))
double code(double x, double y) {
return 1.0 + ((y * x) - y);
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
code = 1.0d0 + ((y * x) - y)
end function
public static double code(double x, double y) {
return 1.0 + ((y * x) - y);
}
def code(x, y): return 1.0 + ((y * x) - y)
function code(x, y) return Float64(1.0 + Float64(Float64(y * x) - y)) end
function tmp = code(x, y) tmp = 1.0 + ((y * x) - y); end
code[x_, y_] := N[(1.0 + N[(N[(y * x), $MachinePrecision] - y), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
1 + \left(y \cdot x - y\right)
\end{array}
Initial program 74.5%
+-commutative74.5%
remove-double-neg74.5%
unsub-neg74.5%
sub-neg74.5%
+-commutative74.5%
distribute-rgt-in74.5%
*-lft-identity74.5%
associate-+r-74.5%
associate--l-100.0%
sub-neg100.0%
+-inverses100.0%
--rgt-identity100.0%
+-commutative100.0%
distribute-lft-neg-out100.0%
distribute-rgt-neg-in100.0%
neg-sub0100.0%
associate--r-100.0%
metadata-eval100.0%
+-commutative100.0%
Simplified100.0%
distribute-lft-in100.0%
fma-define100.0%
*-commutative100.0%
mul-1-neg100.0%
fmm-undef100.0%
Applied egg-rr100.0%
(FPCore (x y) :precision binary64 (if (or (<= x -1.0) (not (<= x 1.0))) (+ 1.0 (* y x)) (- 1.0 y)))
double code(double x, double y) {
double tmp;
if ((x <= -1.0) || !(x <= 1.0)) {
tmp = 1.0 + (y * x);
} else {
tmp = 1.0 - y;
}
return tmp;
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8) :: tmp
if ((x <= (-1.0d0)) .or. (.not. (x <= 1.0d0))) then
tmp = 1.0d0 + (y * x)
else
tmp = 1.0d0 - y
end if
code = tmp
end function
public static double code(double x, double y) {
double tmp;
if ((x <= -1.0) || !(x <= 1.0)) {
tmp = 1.0 + (y * x);
} else {
tmp = 1.0 - y;
}
return tmp;
}
def code(x, y): tmp = 0 if (x <= -1.0) or not (x <= 1.0): tmp = 1.0 + (y * x) else: tmp = 1.0 - y return tmp
function code(x, y) tmp = 0.0 if ((x <= -1.0) || !(x <= 1.0)) tmp = Float64(1.0 + Float64(y * x)); else tmp = Float64(1.0 - y); end return tmp end
function tmp_2 = code(x, y) tmp = 0.0; if ((x <= -1.0) || ~((x <= 1.0))) tmp = 1.0 + (y * x); else tmp = 1.0 - y; end tmp_2 = tmp; end
code[x_, y_] := If[Or[LessEqual[x, -1.0], N[Not[LessEqual[x, 1.0]], $MachinePrecision]], N[(1.0 + N[(y * x), $MachinePrecision]), $MachinePrecision], N[(1.0 - y), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -1 \lor \neg \left(x \leq 1\right):\\
\;\;\;\;1 + y \cdot x\\
\mathbf{else}:\\
\;\;\;\;1 - y\\
\end{array}
\end{array}
if x < -1 or 1 < x Initial program 54.3%
+-commutative54.3%
remove-double-neg54.3%
unsub-neg54.3%
sub-neg54.3%
+-commutative54.3%
distribute-rgt-in54.4%
*-lft-identity54.4%
associate-+r-54.4%
associate--l-100.0%
sub-neg100.0%
+-inverses100.0%
--rgt-identity100.0%
+-commutative100.0%
distribute-lft-neg-out100.0%
distribute-rgt-neg-in100.0%
neg-sub0100.0%
associate--r-100.0%
metadata-eval100.0%
+-commutative100.0%
Simplified100.0%
Taylor expanded in x around inf 99.0%
*-commutative99.0%
Simplified99.0%
if -1 < x < 1Initial program 100.0%
+-commutative100.0%
remove-double-neg100.0%
unsub-neg100.0%
sub-neg100.0%
+-commutative100.0%
distribute-rgt-in100.0%
*-lft-identity100.0%
associate-+r-100.0%
associate--l-100.0%
sub-neg100.0%
+-inverses100.0%
--rgt-identity100.0%
+-commutative100.0%
distribute-lft-neg-out100.0%
distribute-rgt-neg-in100.0%
neg-sub0100.0%
associate--r-100.0%
metadata-eval100.0%
+-commutative100.0%
Simplified100.0%
Taylor expanded in x around 0 98.5%
neg-mul-198.5%
unsub-neg98.5%
Simplified98.5%
Final simplification98.8%
(FPCore (x y) :precision binary64 (if (or (<= y -3100.0) (not (<= y 34000.0))) (- y) 1.0))
double code(double x, double y) {
double tmp;
if ((y <= -3100.0) || !(y <= 34000.0)) {
tmp = -y;
} else {
tmp = 1.0;
}
return tmp;
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8) :: tmp
if ((y <= (-3100.0d0)) .or. (.not. (y <= 34000.0d0))) then
tmp = -y
else
tmp = 1.0d0
end if
code = tmp
end function
public static double code(double x, double y) {
double tmp;
if ((y <= -3100.0) || !(y <= 34000.0)) {
tmp = -y;
} else {
tmp = 1.0;
}
return tmp;
}
def code(x, y): tmp = 0 if (y <= -3100.0) or not (y <= 34000.0): tmp = -y else: tmp = 1.0 return tmp
function code(x, y) tmp = 0.0 if ((y <= -3100.0) || !(y <= 34000.0)) tmp = Float64(-y); else tmp = 1.0; end return tmp end
function tmp_2 = code(x, y) tmp = 0.0; if ((y <= -3100.0) || ~((y <= 34000.0))) tmp = -y; else tmp = 1.0; end tmp_2 = tmp; end
code[x_, y_] := If[Or[LessEqual[y, -3100.0], N[Not[LessEqual[y, 34000.0]], $MachinePrecision]], (-y), 1.0]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \leq -3100 \lor \neg \left(y \leq 34000\right):\\
\;\;\;\;-y\\
\mathbf{else}:\\
\;\;\;\;1\\
\end{array}
\end{array}
if y < -3100 or 34000 < y Initial program 100.0%
+-commutative100.0%
remove-double-neg100.0%
unsub-neg100.0%
sub-neg100.0%
+-commutative100.0%
distribute-rgt-in100.0%
*-lft-identity100.0%
associate-+r-100.0%
associate--l-100.0%
sub-neg100.0%
+-inverses100.0%
--rgt-identity100.0%
+-commutative100.0%
distribute-lft-neg-out100.0%
distribute-rgt-neg-in100.0%
neg-sub0100.0%
associate--r-100.0%
metadata-eval100.0%
+-commutative100.0%
Simplified100.0%
Taylor expanded in x around 0 48.0%
neg-mul-148.0%
unsub-neg48.0%
Simplified48.0%
expm1-log1p-u22.0%
Applied egg-rr22.0%
expm1-undefine22.0%
sub-neg22.0%
log1p-undefine22.0%
rem-exp-log48.0%
associate-+r-48.0%
metadata-eval48.0%
metadata-eval48.0%
Simplified48.0%
Taylor expanded in y around inf 47.9%
neg-mul-147.9%
Simplified47.9%
if -3100 < y < 34000Initial program 48.6%
+-commutative48.6%
remove-double-neg48.6%
unsub-neg48.6%
sub-neg48.6%
+-commutative48.6%
distribute-rgt-in48.6%
*-lft-identity48.6%
associate-+r-48.6%
associate--l-100.0%
sub-neg100.0%
+-inverses100.0%
--rgt-identity100.0%
+-commutative100.0%
distribute-lft-neg-out100.0%
distribute-rgt-neg-in100.0%
neg-sub0100.0%
associate--r-100.0%
metadata-eval100.0%
+-commutative100.0%
Simplified100.0%
Taylor expanded in y around 0 69.5%
Final simplification58.7%
(FPCore (x y) :precision binary64 (+ 1.0 (* y (+ x -1.0))))
double code(double x, double y) {
return 1.0 + (y * (x + -1.0));
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
code = 1.0d0 + (y * (x + (-1.0d0)))
end function
public static double code(double x, double y) {
return 1.0 + (y * (x + -1.0));
}
def code(x, y): return 1.0 + (y * (x + -1.0))
function code(x, y) return Float64(1.0 + Float64(y * Float64(x + -1.0))) end
function tmp = code(x, y) tmp = 1.0 + (y * (x + -1.0)); end
code[x_, y_] := N[(1.0 + N[(y * N[(x + -1.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
1 + y \cdot \left(x + -1\right)
\end{array}
Initial program 74.5%
+-commutative74.5%
remove-double-neg74.5%
unsub-neg74.5%
sub-neg74.5%
+-commutative74.5%
distribute-rgt-in74.5%
*-lft-identity74.5%
associate-+r-74.5%
associate--l-100.0%
sub-neg100.0%
+-inverses100.0%
--rgt-identity100.0%
+-commutative100.0%
distribute-lft-neg-out100.0%
distribute-rgt-neg-in100.0%
neg-sub0100.0%
associate--r-100.0%
metadata-eval100.0%
+-commutative100.0%
Simplified100.0%
(FPCore (x y) :precision binary64 (- 1.0 y))
double code(double x, double y) {
return 1.0 - y;
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
code = 1.0d0 - y
end function
public static double code(double x, double y) {
return 1.0 - y;
}
def code(x, y): return 1.0 - y
function code(x, y) return Float64(1.0 - y) end
function tmp = code(x, y) tmp = 1.0 - y; end
code[x_, y_] := N[(1.0 - y), $MachinePrecision]
\begin{array}{l}
\\
1 - y
\end{array}
Initial program 74.5%
+-commutative74.5%
remove-double-neg74.5%
unsub-neg74.5%
sub-neg74.5%
+-commutative74.5%
distribute-rgt-in74.5%
*-lft-identity74.5%
associate-+r-74.5%
associate--l-100.0%
sub-neg100.0%
+-inverses100.0%
--rgt-identity100.0%
+-commutative100.0%
distribute-lft-neg-out100.0%
distribute-rgt-neg-in100.0%
neg-sub0100.0%
associate--r-100.0%
metadata-eval100.0%
+-commutative100.0%
Simplified100.0%
Taylor expanded in x around 0 59.4%
neg-mul-159.4%
unsub-neg59.4%
Simplified59.4%
(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 74.5%
+-commutative74.5%
remove-double-neg74.5%
unsub-neg74.5%
sub-neg74.5%
+-commutative74.5%
distribute-rgt-in74.5%
*-lft-identity74.5%
associate-+r-74.5%
associate--l-100.0%
sub-neg100.0%
+-inverses100.0%
--rgt-identity100.0%
+-commutative100.0%
distribute-lft-neg-out100.0%
distribute-rgt-neg-in100.0%
neg-sub0100.0%
associate--r-100.0%
metadata-eval100.0%
+-commutative100.0%
Simplified100.0%
Taylor expanded in y around 0 36.0%
(FPCore (x y) :precision binary64 0.0)
double code(double x, double y) {
return 0.0;
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
code = 0.0d0
end function
public static double code(double x, double y) {
return 0.0;
}
def code(x, y): return 0.0
function code(x, y) return 0.0 end
function tmp = code(x, y) tmp = 0.0; end
code[x_, y_] := 0.0
\begin{array}{l}
\\
0
\end{array}
Initial program 74.5%
+-commutative74.5%
remove-double-neg74.5%
unsub-neg74.5%
sub-neg74.5%
+-commutative74.5%
distribute-rgt-in74.5%
*-lft-identity74.5%
associate-+r-74.5%
associate--l-100.0%
sub-neg100.0%
+-inverses100.0%
--rgt-identity100.0%
+-commutative100.0%
distribute-lft-neg-out100.0%
distribute-rgt-neg-in100.0%
neg-sub0100.0%
associate--r-100.0%
metadata-eval100.0%
+-commutative100.0%
Simplified100.0%
Taylor expanded in x around 0 59.4%
neg-mul-159.4%
unsub-neg59.4%
Simplified59.4%
expm1-log1p-u46.4%
Applied egg-rr46.4%
expm1-undefine46.3%
sub-neg46.3%
log1p-undefine46.3%
rem-exp-log59.4%
associate-+r-59.4%
metadata-eval59.4%
metadata-eval59.4%
Simplified59.4%
Taylor expanded in y around inf 25.9%
neg-mul-125.9%
Simplified25.9%
add-sqr-sqrt13.3%
sqrt-unprod16.2%
sqr-neg16.2%
sqrt-unprod1.7%
add-log-exp5.4%
add-sqr-sqrt9.1%
add-sqr-sqrt9.1%
sqrt-unprod9.1%
add-sqr-sqrt5.4%
sqrt-unprod6.2%
sqr-neg6.2%
sqrt-unprod0.8%
add-sqr-sqrt1.4%
exp-neg1.4%
rgt-mult-inverse2.5%
metadata-eval2.5%
metadata-eval2.5%
Applied egg-rr2.5%
(FPCore (x y) :precision binary64 (- (* y x) (- y 1.0)))
double code(double x, double y) {
return (y * x) - (y - 1.0);
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
code = (y * x) - (y - 1.0d0)
end function
public static double code(double x, double y) {
return (y * x) - (y - 1.0);
}
def code(x, y): return (y * x) - (y - 1.0)
function code(x, y) return Float64(Float64(y * x) - Float64(y - 1.0)) end
function tmp = code(x, y) tmp = (y * x) - (y - 1.0); end
code[x_, y_] := N[(N[(y * x), $MachinePrecision] - N[(y - 1.0), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
y \cdot x - \left(y - 1\right)
\end{array}
herbie shell --seed 2024167
(FPCore (x y)
:name "Graphics.Rendering.Chart.Plot.Vectors:renderPlotVectors from Chart-1.5.3"
:precision binary64
:alt
(! :herbie-platform default (- (* y x) (- y 1)))
(+ x (* (- 1.0 x) (- 1.0 y))))