
(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 (* (/ x (+ x y)) 100.0))
double code(double x, double y) {
return (x / (x + y)) * 100.0;
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
code = (x / (x + y)) * 100.0d0
end function
public static double code(double x, double y) {
return (x / (x + y)) * 100.0;
}
def code(x, y): return (x / (x + y)) * 100.0
function code(x, y) return Float64(Float64(x / Float64(x + y)) * 100.0) end
function tmp = code(x, y) tmp = (x / (x + y)) * 100.0; end
code[x_, y_] := N[(N[(x / N[(x + y), $MachinePrecision]), $MachinePrecision] * 100.0), $MachinePrecision]
\begin{array}{l}
\\
\frac{x}{x + y} \cdot 100
\end{array}
Initial program 99.3%
associate-/l*99.7%
associate-/r/99.8%
+-commutative99.8%
Applied egg-rr99.8%
Final simplification99.8%
(FPCore (x y) :precision binary64 (if (<= x -3e-103) 100.0 (if (<= x 8.2e-69) (* 100.0 (/ x y)) 100.0)))
double code(double x, double y) {
double tmp;
if (x <= -3e-103) {
tmp = 100.0;
} else if (x <= 8.2e-69) {
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 (x <= (-3d-103)) then
tmp = 100.0d0
else if (x <= 8.2d-69) 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 (x <= -3e-103) {
tmp = 100.0;
} else if (x <= 8.2e-69) {
tmp = 100.0 * (x / y);
} else {
tmp = 100.0;
}
return tmp;
}
def code(x, y): tmp = 0 if x <= -3e-103: tmp = 100.0 elif x <= 8.2e-69: tmp = 100.0 * (x / y) else: tmp = 100.0 return tmp
function code(x, y) tmp = 0.0 if (x <= -3e-103) tmp = 100.0; elseif (x <= 8.2e-69) 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 (x <= -3e-103) tmp = 100.0; elseif (x <= 8.2e-69) tmp = 100.0 * (x / y); else tmp = 100.0; end tmp_2 = tmp; end
code[x_, y_] := If[LessEqual[x, -3e-103], 100.0, If[LessEqual[x, 8.2e-69], N[(100.0 * N[(x / y), $MachinePrecision]), $MachinePrecision], 100.0]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -3 \cdot 10^{-103}:\\
\;\;\;\;100\\
\mathbf{elif}\;x \leq 8.2 \cdot 10^{-69}:\\
\;\;\;\;100 \cdot \frac{x}{y}\\
\mathbf{else}:\\
\;\;\;\;100\\
\end{array}
\end{array}
if x < -3e-103 or 8.1999999999999998e-69 < x Initial program 99.1%
*-commutative99.1%
associate-/l*99.9%
+-commutative99.9%
remove-double-neg99.9%
unsub-neg99.9%
div-sub99.9%
distribute-frac-neg99.9%
*-inverses99.9%
metadata-eval99.9%
Simplified99.9%
Taylor expanded in y around 0 74.1%
if -3e-103 < x < 8.1999999999999998e-69Initial program 99.8%
*-commutative99.8%
associate-/l*98.0%
+-commutative98.0%
remove-double-neg98.0%
unsub-neg98.0%
div-sub98.0%
distribute-frac-neg98.0%
*-inverses98.0%
metadata-eval98.0%
Simplified98.0%
Taylor expanded in y around inf 88.1%
Final simplification78.9%
(FPCore (x y) :precision binary64 (if (<= x -3e-103) 100.0 (if (<= x 2.6e-71) (/ x (/ y 100.0)) 100.0)))
double code(double x, double y) {
double tmp;
if (x <= -3e-103) {
tmp = 100.0;
} else if (x <= 2.6e-71) {
tmp = x / (y / 100.0);
} 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 (x <= (-3d-103)) then
tmp = 100.0d0
else if (x <= 2.6d-71) then
tmp = x / (y / 100.0d0)
else
tmp = 100.0d0
end if
code = tmp
end function
public static double code(double x, double y) {
double tmp;
if (x <= -3e-103) {
tmp = 100.0;
} else if (x <= 2.6e-71) {
tmp = x / (y / 100.0);
} else {
tmp = 100.0;
}
return tmp;
}
def code(x, y): tmp = 0 if x <= -3e-103: tmp = 100.0 elif x <= 2.6e-71: tmp = x / (y / 100.0) else: tmp = 100.0 return tmp
function code(x, y) tmp = 0.0 if (x <= -3e-103) tmp = 100.0; elseif (x <= 2.6e-71) tmp = Float64(x / Float64(y / 100.0)); else tmp = 100.0; end return tmp end
function tmp_2 = code(x, y) tmp = 0.0; if (x <= -3e-103) tmp = 100.0; elseif (x <= 2.6e-71) tmp = x / (y / 100.0); else tmp = 100.0; end tmp_2 = tmp; end
code[x_, y_] := If[LessEqual[x, -3e-103], 100.0, If[LessEqual[x, 2.6e-71], N[(x / N[(y / 100.0), $MachinePrecision]), $MachinePrecision], 100.0]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -3 \cdot 10^{-103}:\\
\;\;\;\;100\\
\mathbf{elif}\;x \leq 2.6 \cdot 10^{-71}:\\
\;\;\;\;\frac{x}{\frac{y}{100}}\\
\mathbf{else}:\\
\;\;\;\;100\\
\end{array}
\end{array}
if x < -3e-103 or 2.5999999999999999e-71 < x Initial program 99.1%
*-commutative99.1%
associate-/l*99.9%
+-commutative99.9%
remove-double-neg99.9%
unsub-neg99.9%
div-sub99.9%
distribute-frac-neg99.9%
*-inverses99.9%
metadata-eval99.9%
Simplified99.9%
Taylor expanded in y around 0 74.1%
if -3e-103 < x < 2.5999999999999999e-71Initial program 99.8%
*-commutative99.8%
associate-/l*98.0%
+-commutative98.0%
remove-double-neg98.0%
unsub-neg98.0%
div-sub98.0%
distribute-frac-neg98.0%
*-inverses98.0%
metadata-eval98.0%
Simplified98.0%
Taylor expanded in y around inf 88.1%
associate-*r/88.2%
*-commutative88.2%
associate-/l*88.2%
Simplified88.2%
Final simplification79.0%
(FPCore (x y) :precision binary64 (if (<= x -3e-103) 100.0 (if (<= x 5e-71) (/ (* x 100.0) y) 100.0)))
double code(double x, double y) {
double tmp;
if (x <= -3e-103) {
tmp = 100.0;
} else if (x <= 5e-71) {
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 (x <= (-3d-103)) then
tmp = 100.0d0
else if (x <= 5d-71) 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 (x <= -3e-103) {
tmp = 100.0;
} else if (x <= 5e-71) {
tmp = (x * 100.0) / y;
} else {
tmp = 100.0;
}
return tmp;
}
def code(x, y): tmp = 0 if x <= -3e-103: tmp = 100.0 elif x <= 5e-71: tmp = (x * 100.0) / y else: tmp = 100.0 return tmp
function code(x, y) tmp = 0.0 if (x <= -3e-103) tmp = 100.0; elseif (x <= 5e-71) tmp = Float64(Float64(x * 100.0) / y); else tmp = 100.0; end return tmp end
function tmp_2 = code(x, y) tmp = 0.0; if (x <= -3e-103) tmp = 100.0; elseif (x <= 5e-71) tmp = (x * 100.0) / y; else tmp = 100.0; end tmp_2 = tmp; end
code[x_, y_] := If[LessEqual[x, -3e-103], 100.0, If[LessEqual[x, 5e-71], N[(N[(x * 100.0), $MachinePrecision] / y), $MachinePrecision], 100.0]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -3 \cdot 10^{-103}:\\
\;\;\;\;100\\
\mathbf{elif}\;x \leq 5 \cdot 10^{-71}:\\
\;\;\;\;\frac{x \cdot 100}{y}\\
\mathbf{else}:\\
\;\;\;\;100\\
\end{array}
\end{array}
if x < -3e-103 or 4.99999999999999998e-71 < x Initial program 99.1%
*-commutative99.1%
associate-/l*99.9%
+-commutative99.9%
remove-double-neg99.9%
unsub-neg99.9%
div-sub99.9%
distribute-frac-neg99.9%
*-inverses99.9%
metadata-eval99.9%
Simplified99.9%
Taylor expanded in y around 0 74.1%
if -3e-103 < x < 4.99999999999999998e-71Initial program 99.8%
*-commutative99.8%
associate-/l*98.0%
+-commutative98.0%
remove-double-neg98.0%
unsub-neg98.0%
div-sub98.0%
distribute-frac-neg98.0%
*-inverses98.0%
metadata-eval98.0%
Simplified98.0%
Taylor expanded in y around inf 88.1%
associate-*r/88.2%
Applied egg-rr88.2%
Final simplification79.0%
(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*99.2%
+-commutative99.2%
remove-double-neg99.2%
unsub-neg99.2%
div-sub99.2%
distribute-frac-neg99.2%
*-inverses99.2%
metadata-eval99.2%
Simplified99.2%
Taylor expanded in y around 0 53.0%
Final simplification53.0%
(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 2024018
(FPCore (x y)
:name "Development.Shake.Progress:message from shake-0.15.5"
:precision binary64
:herbie-target
(* (/ x 1.0) (/ 100.0 (+ x y)))
(/ (* x 100.0) (+ x y)))