
(FPCore (x y) :precision binary64 (/ (* x 100.0) (+ x y)))
double code(double x, double y) {
return (x * 100.0) / (x + y);
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
code = (x * 100.0d0) / (x + y)
end function
public static double code(double x, double y) {
return (x * 100.0) / (x + y);
}
def code(x, y): return (x * 100.0) / (x + y)
function code(x, y) return Float64(Float64(x * 100.0) / Float64(x + y)) end
function tmp = code(x, y) tmp = (x * 100.0) / (x + y); end
code[x_, y_] := N[(N[(x * 100.0), $MachinePrecision] / N[(x + y), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\frac{x \cdot 100}{x + y}
\end{array}
Sampling outcomes in binary64 precision:
Herbie found 5 alternatives:
| Alternative | Accuracy | Speedup |
|---|
(FPCore (x y) :precision binary64 (/ (* x 100.0) (+ x y)))
double code(double x, double y) {
return (x * 100.0) / (x + y);
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
code = (x * 100.0d0) / (x + y)
end function
public static double code(double x, double y) {
return (x * 100.0) / (x + y);
}
def code(x, y): return (x * 100.0) / (x + y)
function code(x, y) return Float64(Float64(x * 100.0) / Float64(x + y)) end
function tmp = code(x, y) tmp = (x * 100.0) / (x + y); end
code[x_, y_] := N[(N[(x * 100.0), $MachinePrecision] / N[(x + y), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\frac{x \cdot 100}{x + y}
\end{array}
(FPCore (x y) :precision binary64 (* 100.0 (/ x (+ x y))))
double code(double x, double y) {
return 100.0 * (x / (x + y));
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
code = 100.0d0 * (x / (x + y))
end function
public static double code(double x, double y) {
return 100.0 * (x / (x + y));
}
def code(x, y): return 100.0 * (x / (x + y))
function code(x, y) return Float64(100.0 * Float64(x / Float64(x + y))) end
function tmp = code(x, y) tmp = 100.0 * (x / (x + y)); end
code[x_, y_] := N[(100.0 * N[(x / N[(x + y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
100 \cdot \frac{x}{x + y}
\end{array}
Initial program 99.3%
*-commutative99.3%
associate-/l*99.8%
Simplified99.8%
(FPCore (x y) :precision binary64 (if (or (<= y -6.4e+18) (not (<= y 4.2e-105))) (* x (/ 100.0 y)) 100.0))
double code(double x, double y) {
double tmp;
if ((y <= -6.4e+18) || !(y <= 4.2e-105)) {
tmp = x * (100.0 / y);
} else {
tmp = 100.0;
}
return tmp;
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8) :: tmp
if ((y <= (-6.4d+18)) .or. (.not. (y <= 4.2d-105))) then
tmp = x * (100.0d0 / y)
else
tmp = 100.0d0
end if
code = tmp
end function
public static double code(double x, double y) {
double tmp;
if ((y <= -6.4e+18) || !(y <= 4.2e-105)) {
tmp = x * (100.0 / y);
} else {
tmp = 100.0;
}
return tmp;
}
def code(x, y): tmp = 0 if (y <= -6.4e+18) or not (y <= 4.2e-105): tmp = x * (100.0 / y) else: tmp = 100.0 return tmp
function code(x, y) tmp = 0.0 if ((y <= -6.4e+18) || !(y <= 4.2e-105)) tmp = Float64(x * Float64(100.0 / y)); else tmp = 100.0; end return tmp end
function tmp_2 = code(x, y) tmp = 0.0; if ((y <= -6.4e+18) || ~((y <= 4.2e-105))) tmp = x * (100.0 / y); else tmp = 100.0; end tmp_2 = tmp; end
code[x_, y_] := If[Or[LessEqual[y, -6.4e+18], N[Not[LessEqual[y, 4.2e-105]], $MachinePrecision]], N[(x * N[(100.0 / y), $MachinePrecision]), $MachinePrecision], 100.0]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \leq -6.4 \cdot 10^{+18} \lor \neg \left(y \leq 4.2 \cdot 10^{-105}\right):\\
\;\;\;\;x \cdot \frac{100}{y}\\
\mathbf{else}:\\
\;\;\;\;100\\
\end{array}
\end{array}
if y < -6.4e18 or 4.2e-105 < y Initial program 99.7%
*-commutative99.7%
associate-/l*99.7%
Simplified99.7%
Taylor expanded in x around 0 74.5%
associate-*r/74.6%
*-commutative74.6%
associate-*r/74.7%
Simplified74.7%
if -6.4e18 < y < 4.2e-105Initial program 98.8%
*-commutative98.8%
associate-/l*99.9%
Simplified99.9%
Taylor expanded in x around inf 83.4%
Final simplification78.3%
(FPCore (x y) :precision binary64 (if (or (<= y -2.65e+17) (not (<= y 4.2e-105))) (* 100.0 (/ x y)) 100.0))
double code(double x, double y) {
double tmp;
if ((y <= -2.65e+17) || !(y <= 4.2e-105)) {
tmp = 100.0 * (x / y);
} else {
tmp = 100.0;
}
return tmp;
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8) :: tmp
if ((y <= (-2.65d+17)) .or. (.not. (y <= 4.2d-105))) then
tmp = 100.0d0 * (x / y)
else
tmp = 100.0d0
end if
code = tmp
end function
public static double code(double x, double y) {
double tmp;
if ((y <= -2.65e+17) || !(y <= 4.2e-105)) {
tmp = 100.0 * (x / y);
} else {
tmp = 100.0;
}
return tmp;
}
def code(x, y): tmp = 0 if (y <= -2.65e+17) or not (y <= 4.2e-105): tmp = 100.0 * (x / y) else: tmp = 100.0 return tmp
function code(x, y) tmp = 0.0 if ((y <= -2.65e+17) || !(y <= 4.2e-105)) tmp = Float64(100.0 * Float64(x / y)); else tmp = 100.0; end return tmp end
function tmp_2 = code(x, y) tmp = 0.0; if ((y <= -2.65e+17) || ~((y <= 4.2e-105))) tmp = 100.0 * (x / y); else tmp = 100.0; end tmp_2 = tmp; end
code[x_, y_] := If[Or[LessEqual[y, -2.65e+17], N[Not[LessEqual[y, 4.2e-105]], $MachinePrecision]], N[(100.0 * N[(x / y), $MachinePrecision]), $MachinePrecision], 100.0]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \leq -2.65 \cdot 10^{+17} \lor \neg \left(y \leq 4.2 \cdot 10^{-105}\right):\\
\;\;\;\;100 \cdot \frac{x}{y}\\
\mathbf{else}:\\
\;\;\;\;100\\
\end{array}
\end{array}
if y < -2.65e17 or 4.2e-105 < y Initial program 99.7%
*-commutative99.7%
associate-/l*99.7%
Simplified99.7%
Taylor expanded in x around 0 74.5%
if -2.65e17 < y < 4.2e-105Initial program 98.8%
*-commutative98.8%
associate-/l*99.9%
Simplified99.9%
Taylor expanded in x around inf 83.4%
Final simplification78.2%
(FPCore (x y) :precision binary64 (if (<= y -1e+17) (/ x (* y 0.01)) (if (<= y 3.1e-105) 100.0 (* x (/ 100.0 y)))))
double code(double x, double y) {
double tmp;
if (y <= -1e+17) {
tmp = x / (y * 0.01);
} else if (y <= 3.1e-105) {
tmp = 100.0;
} else {
tmp = x * (100.0 / y);
}
return tmp;
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8) :: tmp
if (y <= (-1d+17)) then
tmp = x / (y * 0.01d0)
else if (y <= 3.1d-105) then
tmp = 100.0d0
else
tmp = x * (100.0d0 / y)
end if
code = tmp
end function
public static double code(double x, double y) {
double tmp;
if (y <= -1e+17) {
tmp = x / (y * 0.01);
} else if (y <= 3.1e-105) {
tmp = 100.0;
} else {
tmp = x * (100.0 / y);
}
return tmp;
}
def code(x, y): tmp = 0 if y <= -1e+17: tmp = x / (y * 0.01) elif y <= 3.1e-105: tmp = 100.0 else: tmp = x * (100.0 / y) return tmp
function code(x, y) tmp = 0.0 if (y <= -1e+17) tmp = Float64(x / Float64(y * 0.01)); elseif (y <= 3.1e-105) tmp = 100.0; else tmp = Float64(x * Float64(100.0 / y)); end return tmp end
function tmp_2 = code(x, y) tmp = 0.0; if (y <= -1e+17) tmp = x / (y * 0.01); elseif (y <= 3.1e-105) tmp = 100.0; else tmp = x * (100.0 / y); end tmp_2 = tmp; end
code[x_, y_] := If[LessEqual[y, -1e+17], N[(x / N[(y * 0.01), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 3.1e-105], 100.0, N[(x * N[(100.0 / y), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \leq -1 \cdot 10^{+17}:\\
\;\;\;\;\frac{x}{y \cdot 0.01}\\
\mathbf{elif}\;y \leq 3.1 \cdot 10^{-105}:\\
\;\;\;\;100\\
\mathbf{else}:\\
\;\;\;\;x \cdot \frac{100}{y}\\
\end{array}
\end{array}
if y < -1e17Initial program 99.7%
*-commutative99.7%
associate-/l*99.8%
Simplified99.8%
Taylor expanded in x around 0 82.7%
associate-*r/82.6%
*-commutative82.6%
associate-*r/82.7%
clear-num82.7%
un-div-inv82.8%
div-inv82.8%
metadata-eval82.8%
Applied egg-rr82.8%
if -1e17 < y < 3.10000000000000014e-105Initial program 98.8%
*-commutative98.8%
associate-/l*99.9%
Simplified99.9%
Taylor expanded in x around inf 83.4%
if 3.10000000000000014e-105 < y Initial program 99.7%
*-commutative99.7%
associate-/l*99.6%
Simplified99.6%
Taylor expanded in x around 0 70.0%
associate-*r/70.1%
*-commutative70.1%
associate-*r/70.1%
Simplified70.1%
(FPCore (x y) :precision binary64 100.0)
double code(double x, double y) {
return 100.0;
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
code = 100.0d0
end function
public static double code(double x, double y) {
return 100.0;
}
def code(x, y): return 100.0
function code(x, y) return 100.0 end
function tmp = code(x, y) tmp = 100.0; end
code[x_, y_] := 100.0
\begin{array}{l}
\\
100
\end{array}
Initial program 99.3%
*-commutative99.3%
associate-/l*99.8%
Simplified99.8%
Taylor expanded in x around inf 50.0%
(FPCore (x y) :precision binary64 (* (/ x 1.0) (/ 100.0 (+ x y))))
double code(double x, double y) {
return (x / 1.0) * (100.0 / (x + y));
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
code = (x / 1.0d0) * (100.0d0 / (x + y))
end function
public static double code(double x, double y) {
return (x / 1.0) * (100.0 / (x + y));
}
def code(x, y): return (x / 1.0) * (100.0 / (x + y))
function code(x, y) return Float64(Float64(x / 1.0) * Float64(100.0 / Float64(x + y))) end
function tmp = code(x, y) tmp = (x / 1.0) * (100.0 / (x + y)); end
code[x_, y_] := N[(N[(x / 1.0), $MachinePrecision] * N[(100.0 / N[(x + y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\frac{x}{1} \cdot \frac{100}{x + y}
\end{array}
herbie shell --seed 2024138
(FPCore (x y)
:name "Development.Shake.Progress:message from shake-0.15.5"
:precision binary64
:alt
(! :herbie-platform default (* (/ x 1) (/ 100 (+ x y))))
(/ (* x 100.0) (+ x y)))