
(FPCore (a rand) :precision binary64 (let* ((t_0 (- a (/ 1.0 3.0)))) (* t_0 (+ 1.0 (* (/ 1.0 (sqrt (* 9.0 t_0))) rand)))))
double code(double a, double rand) {
double t_0 = a - (1.0 / 3.0);
return t_0 * (1.0 + ((1.0 / sqrt((9.0 * t_0))) * rand));
}
real(8) function code(a, rand)
real(8), intent (in) :: a
real(8), intent (in) :: rand
real(8) :: t_0
t_0 = a - (1.0d0 / 3.0d0)
code = t_0 * (1.0d0 + ((1.0d0 / sqrt((9.0d0 * t_0))) * rand))
end function
public static double code(double a, double rand) {
double t_0 = a - (1.0 / 3.0);
return t_0 * (1.0 + ((1.0 / Math.sqrt((9.0 * t_0))) * rand));
}
def code(a, rand): t_0 = a - (1.0 / 3.0) return t_0 * (1.0 + ((1.0 / math.sqrt((9.0 * t_0))) * rand))
function code(a, rand) t_0 = Float64(a - Float64(1.0 / 3.0)) return Float64(t_0 * Float64(1.0 + Float64(Float64(1.0 / sqrt(Float64(9.0 * t_0))) * rand))) end
function tmp = code(a, rand) t_0 = a - (1.0 / 3.0); tmp = t_0 * (1.0 + ((1.0 / sqrt((9.0 * t_0))) * rand)); end
code[a_, rand_] := Block[{t$95$0 = N[(a - N[(1.0 / 3.0), $MachinePrecision]), $MachinePrecision]}, N[(t$95$0 * N[(1.0 + N[(N[(1.0 / N[Sqrt[N[(9.0 * t$95$0), $MachinePrecision]], $MachinePrecision]), $MachinePrecision] * rand), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
t_0 := a - \frac{1}{3}\\
t_0 \cdot \left(1 + \frac{1}{\sqrt{9 \cdot t_0}} \cdot rand\right)
\end{array}
\end{array}
Sampling outcomes in binary64 precision:
Herbie found 8 alternatives:
| Alternative | Accuracy | Speedup |
|---|
(FPCore (a rand) :precision binary64 (let* ((t_0 (- a (/ 1.0 3.0)))) (* t_0 (+ 1.0 (* (/ 1.0 (sqrt (* 9.0 t_0))) rand)))))
double code(double a, double rand) {
double t_0 = a - (1.0 / 3.0);
return t_0 * (1.0 + ((1.0 / sqrt((9.0 * t_0))) * rand));
}
real(8) function code(a, rand)
real(8), intent (in) :: a
real(8), intent (in) :: rand
real(8) :: t_0
t_0 = a - (1.0d0 / 3.0d0)
code = t_0 * (1.0d0 + ((1.0d0 / sqrt((9.0d0 * t_0))) * rand))
end function
public static double code(double a, double rand) {
double t_0 = a - (1.0 / 3.0);
return t_0 * (1.0 + ((1.0 / Math.sqrt((9.0 * t_0))) * rand));
}
def code(a, rand): t_0 = a - (1.0 / 3.0) return t_0 * (1.0 + ((1.0 / math.sqrt((9.0 * t_0))) * rand))
function code(a, rand) t_0 = Float64(a - Float64(1.0 / 3.0)) return Float64(t_0 * Float64(1.0 + Float64(Float64(1.0 / sqrt(Float64(9.0 * t_0))) * rand))) end
function tmp = code(a, rand) t_0 = a - (1.0 / 3.0); tmp = t_0 * (1.0 + ((1.0 / sqrt((9.0 * t_0))) * rand)); end
code[a_, rand_] := Block[{t$95$0 = N[(a - N[(1.0 / 3.0), $MachinePrecision]), $MachinePrecision]}, N[(t$95$0 * N[(1.0 + N[(N[(1.0 / N[Sqrt[N[(9.0 * t$95$0), $MachinePrecision]], $MachinePrecision]), $MachinePrecision] * rand), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
t_0 := a - \frac{1}{3}\\
t_0 \cdot \left(1 + \frac{1}{\sqrt{9 \cdot t_0}} \cdot rand\right)
\end{array}
\end{array}
(FPCore (a rand) :precision binary64 (- (+ a (* rand (sqrt (+ -0.037037037037037035 (* 0.1111111111111111 a))))) 0.3333333333333333))
double code(double a, double rand) {
return (a + (rand * sqrt((-0.037037037037037035 + (0.1111111111111111 * a))))) - 0.3333333333333333;
}
real(8) function code(a, rand)
real(8), intent (in) :: a
real(8), intent (in) :: rand
code = (a + (rand * sqrt(((-0.037037037037037035d0) + (0.1111111111111111d0 * a))))) - 0.3333333333333333d0
end function
public static double code(double a, double rand) {
return (a + (rand * Math.sqrt((-0.037037037037037035 + (0.1111111111111111 * a))))) - 0.3333333333333333;
}
def code(a, rand): return (a + (rand * math.sqrt((-0.037037037037037035 + (0.1111111111111111 * a))))) - 0.3333333333333333
function code(a, rand) return Float64(Float64(a + Float64(rand * sqrt(Float64(-0.037037037037037035 + Float64(0.1111111111111111 * a))))) - 0.3333333333333333) end
function tmp = code(a, rand) tmp = (a + (rand * sqrt((-0.037037037037037035 + (0.1111111111111111 * a))))) - 0.3333333333333333; end
code[a_, rand_] := N[(N[(a + N[(rand * N[Sqrt[N[(-0.037037037037037035 + N[(0.1111111111111111 * a), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]), $MachinePrecision] - 0.3333333333333333), $MachinePrecision]
\begin{array}{l}
\\
\left(a + rand \cdot \sqrt{-0.037037037037037035 + 0.1111111111111111 \cdot a}\right) - 0.3333333333333333
\end{array}
Initial program 99.8%
sub-neg99.8%
metadata-eval99.8%
metadata-eval99.8%
*-commutative99.8%
sub-neg99.8%
metadata-eval99.8%
metadata-eval99.8%
Simplified99.8%
add-sqr-sqrt99.7%
sqrt-unprod99.8%
frac-times99.8%
metadata-eval99.8%
add-sqr-sqrt99.8%
*-commutative99.8%
distribute-rgt-in99.8%
metadata-eval99.8%
fma-udef99.8%
Applied egg-rr99.8%
metadata-eval99.8%
fma-neg99.8%
*-commutative99.8%
sub-neg99.8%
metadata-eval99.8%
metadata-eval99.8%
distribute-lft-in99.8%
associate-/r*99.9%
metadata-eval99.9%
Simplified99.9%
Taylor expanded in rand around 0 99.2%
add-log-exp53.1%
associate-*r*53.1%
sub-neg53.1%
metadata-eval53.1%
+-commutative53.1%
exp-prod13.7%
+-commutative13.7%
metadata-eval13.7%
sub-neg13.7%
exp-prod13.7%
sub-neg13.7%
metadata-eval13.7%
+-commutative13.7%
Applied egg-rr13.7%
log-pow14.8%
log-pow99.8%
rem-log-exp99.8%
*-commutative99.8%
Simplified99.8%
add-sqr-sqrt99.7%
sqrt-unprod99.8%
*-commutative99.8%
+-commutative99.8%
metadata-eval99.8%
sub-neg99.8%
*-commutative99.8%
+-commutative99.8%
metadata-eval99.8%
sub-neg99.8%
swap-sqr99.8%
add-sqr-sqrt99.9%
sub-neg99.9%
metadata-eval99.9%
+-commutative99.9%
metadata-eval99.9%
Applied egg-rr99.9%
*-commutative99.9%
distribute-lft-in99.9%
metadata-eval99.9%
Simplified99.9%
Final simplification99.9%
(FPCore (a rand) :precision binary64 (if (or (<= rand -6.2e+73) (not (<= rand 2.4e+80))) (* 0.3333333333333333 (* rand (sqrt (- a 0.3333333333333333)))) (- a 0.3333333333333333)))
double code(double a, double rand) {
double tmp;
if ((rand <= -6.2e+73) || !(rand <= 2.4e+80)) {
tmp = 0.3333333333333333 * (rand * sqrt((a - 0.3333333333333333)));
} else {
tmp = a - 0.3333333333333333;
}
return tmp;
}
real(8) function code(a, rand)
real(8), intent (in) :: a
real(8), intent (in) :: rand
real(8) :: tmp
if ((rand <= (-6.2d+73)) .or. (.not. (rand <= 2.4d+80))) then
tmp = 0.3333333333333333d0 * (rand * sqrt((a - 0.3333333333333333d0)))
else
tmp = a - 0.3333333333333333d0
end if
code = tmp
end function
public static double code(double a, double rand) {
double tmp;
if ((rand <= -6.2e+73) || !(rand <= 2.4e+80)) {
tmp = 0.3333333333333333 * (rand * Math.sqrt((a - 0.3333333333333333)));
} else {
tmp = a - 0.3333333333333333;
}
return tmp;
}
def code(a, rand): tmp = 0 if (rand <= -6.2e+73) or not (rand <= 2.4e+80): tmp = 0.3333333333333333 * (rand * math.sqrt((a - 0.3333333333333333))) else: tmp = a - 0.3333333333333333 return tmp
function code(a, rand) tmp = 0.0 if ((rand <= -6.2e+73) || !(rand <= 2.4e+80)) tmp = Float64(0.3333333333333333 * Float64(rand * sqrt(Float64(a - 0.3333333333333333)))); else tmp = Float64(a - 0.3333333333333333); end return tmp end
function tmp_2 = code(a, rand) tmp = 0.0; if ((rand <= -6.2e+73) || ~((rand <= 2.4e+80))) tmp = 0.3333333333333333 * (rand * sqrt((a - 0.3333333333333333))); else tmp = a - 0.3333333333333333; end tmp_2 = tmp; end
code[a_, rand_] := If[Or[LessEqual[rand, -6.2e+73], N[Not[LessEqual[rand, 2.4e+80]], $MachinePrecision]], N[(0.3333333333333333 * N[(rand * N[Sqrt[N[(a - 0.3333333333333333), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(a - 0.3333333333333333), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;rand \leq -6.2 \cdot 10^{+73} \lor \neg \left(rand \leq 2.4 \cdot 10^{+80}\right):\\
\;\;\;\;0.3333333333333333 \cdot \left(rand \cdot \sqrt{a - 0.3333333333333333}\right)\\
\mathbf{else}:\\
\;\;\;\;a - 0.3333333333333333\\
\end{array}
\end{array}
if rand < -6.1999999999999999e73 or 2.39999999999999979e80 < rand Initial program 99.5%
sub-neg99.5%
metadata-eval99.5%
metadata-eval99.5%
*-commutative99.5%
sub-neg99.5%
metadata-eval99.5%
metadata-eval99.5%
Simplified99.5%
add-sqr-sqrt99.3%
sqrt-unprod99.5%
frac-times99.4%
metadata-eval99.4%
add-sqr-sqrt99.6%
*-commutative99.6%
distribute-rgt-in99.6%
metadata-eval99.6%
fma-udef99.6%
Applied egg-rr99.6%
metadata-eval99.6%
fma-neg99.6%
*-commutative99.6%
sub-neg99.6%
metadata-eval99.6%
metadata-eval99.6%
distribute-lft-in99.6%
associate-/r*99.7%
metadata-eval99.7%
Simplified99.7%
Taylor expanded in rand around inf 86.6%
if -6.1999999999999999e73 < rand < 2.39999999999999979e80Initial program 100.0%
remove-double-neg100.0%
remove-double-neg100.0%
sub-neg100.0%
metadata-eval100.0%
metadata-eval100.0%
remove-double-neg100.0%
remove-double-neg100.0%
associate-*l/100.0%
*-lft-identity100.0%
sub-neg100.0%
distribute-lft-in100.0%
metadata-eval100.0%
metadata-eval100.0%
metadata-eval100.0%
Simplified100.0%
Taylor expanded in rand around 0 96.2%
Final simplification92.7%
(FPCore (a rand) :precision binary64 (if (or (<= rand -2.5e+73) (not (<= rand 2.3e+80))) (* rand (sqrt (* 0.1111111111111111 (+ a -0.3333333333333333)))) (- a 0.3333333333333333)))
double code(double a, double rand) {
double tmp;
if ((rand <= -2.5e+73) || !(rand <= 2.3e+80)) {
tmp = rand * sqrt((0.1111111111111111 * (a + -0.3333333333333333)));
} else {
tmp = a - 0.3333333333333333;
}
return tmp;
}
real(8) function code(a, rand)
real(8), intent (in) :: a
real(8), intent (in) :: rand
real(8) :: tmp
if ((rand <= (-2.5d+73)) .or. (.not. (rand <= 2.3d+80))) then
tmp = rand * sqrt((0.1111111111111111d0 * (a + (-0.3333333333333333d0))))
else
tmp = a - 0.3333333333333333d0
end if
code = tmp
end function
public static double code(double a, double rand) {
double tmp;
if ((rand <= -2.5e+73) || !(rand <= 2.3e+80)) {
tmp = rand * Math.sqrt((0.1111111111111111 * (a + -0.3333333333333333)));
} else {
tmp = a - 0.3333333333333333;
}
return tmp;
}
def code(a, rand): tmp = 0 if (rand <= -2.5e+73) or not (rand <= 2.3e+80): tmp = rand * math.sqrt((0.1111111111111111 * (a + -0.3333333333333333))) else: tmp = a - 0.3333333333333333 return tmp
function code(a, rand) tmp = 0.0 if ((rand <= -2.5e+73) || !(rand <= 2.3e+80)) tmp = Float64(rand * sqrt(Float64(0.1111111111111111 * Float64(a + -0.3333333333333333)))); else tmp = Float64(a - 0.3333333333333333); end return tmp end
function tmp_2 = code(a, rand) tmp = 0.0; if ((rand <= -2.5e+73) || ~((rand <= 2.3e+80))) tmp = rand * sqrt((0.1111111111111111 * (a + -0.3333333333333333))); else tmp = a - 0.3333333333333333; end tmp_2 = tmp; end
code[a_, rand_] := If[Or[LessEqual[rand, -2.5e+73], N[Not[LessEqual[rand, 2.3e+80]], $MachinePrecision]], N[(rand * N[Sqrt[N[(0.1111111111111111 * N[(a + -0.3333333333333333), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision], N[(a - 0.3333333333333333), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;rand \leq -2.5 \cdot 10^{+73} \lor \neg \left(rand \leq 2.3 \cdot 10^{+80}\right):\\
\;\;\;\;rand \cdot \sqrt{0.1111111111111111 \cdot \left(a + -0.3333333333333333\right)}\\
\mathbf{else}:\\
\;\;\;\;a - 0.3333333333333333\\
\end{array}
\end{array}
if rand < -2.49999999999999988e73 or 2.30000000000000004e80 < rand Initial program 99.5%
sub-neg99.5%
metadata-eval99.5%
metadata-eval99.5%
*-commutative99.5%
sub-neg99.5%
metadata-eval99.5%
metadata-eval99.5%
Simplified99.5%
add-sqr-sqrt99.3%
sqrt-unprod99.5%
frac-times99.4%
metadata-eval99.4%
add-sqr-sqrt99.6%
*-commutative99.6%
distribute-rgt-in99.6%
metadata-eval99.6%
fma-udef99.6%
Applied egg-rr99.6%
metadata-eval99.6%
fma-neg99.6%
*-commutative99.6%
sub-neg99.6%
metadata-eval99.6%
metadata-eval99.6%
distribute-lft-in99.6%
associate-/r*99.7%
metadata-eval99.7%
Simplified99.7%
Taylor expanded in rand around inf 86.6%
add-log-exp30.8%
associate-*r*30.8%
sub-neg30.8%
metadata-eval30.8%
+-commutative30.8%
exp-prod30.8%
+-commutative30.8%
metadata-eval30.8%
sub-neg30.8%
exp-prod30.8%
sub-neg30.8%
metadata-eval30.8%
+-commutative30.8%
Applied egg-rr30.8%
log-pow32.8%
log-pow99.6%
rem-log-exp99.6%
*-commutative99.6%
Simplified88.3%
add-sqr-sqrt99.3%
sqrt-unprod99.6%
*-commutative99.6%
+-commutative99.6%
metadata-eval99.6%
sub-neg99.6%
*-commutative99.6%
+-commutative99.6%
metadata-eval99.6%
sub-neg99.6%
swap-sqr99.6%
add-sqr-sqrt99.7%
sub-neg99.7%
metadata-eval99.7%
+-commutative99.7%
metadata-eval99.7%
Applied egg-rr88.4%
if -2.49999999999999988e73 < rand < 2.30000000000000004e80Initial program 100.0%
remove-double-neg100.0%
remove-double-neg100.0%
sub-neg100.0%
metadata-eval100.0%
metadata-eval100.0%
remove-double-neg100.0%
remove-double-neg100.0%
associate-*l/100.0%
*-lft-identity100.0%
sub-neg100.0%
distribute-lft-in100.0%
metadata-eval100.0%
metadata-eval100.0%
metadata-eval100.0%
Simplified100.0%
Taylor expanded in rand around 0 96.2%
Final simplification93.4%
(FPCore (a rand)
:precision binary64
(if (<= rand -3e+68)
(* rand (sqrt (* 0.1111111111111111 (+ a -0.3333333333333333))))
(if (<= rand 2.2e+80)
(- a 0.3333333333333333)
(* (sqrt (+ a -0.3333333333333333)) (* rand 0.3333333333333333)))))
double code(double a, double rand) {
double tmp;
if (rand <= -3e+68) {
tmp = rand * sqrt((0.1111111111111111 * (a + -0.3333333333333333)));
} else if (rand <= 2.2e+80) {
tmp = a - 0.3333333333333333;
} else {
tmp = sqrt((a + -0.3333333333333333)) * (rand * 0.3333333333333333);
}
return tmp;
}
real(8) function code(a, rand)
real(8), intent (in) :: a
real(8), intent (in) :: rand
real(8) :: tmp
if (rand <= (-3d+68)) then
tmp = rand * sqrt((0.1111111111111111d0 * (a + (-0.3333333333333333d0))))
else if (rand <= 2.2d+80) then
tmp = a - 0.3333333333333333d0
else
tmp = sqrt((a + (-0.3333333333333333d0))) * (rand * 0.3333333333333333d0)
end if
code = tmp
end function
public static double code(double a, double rand) {
double tmp;
if (rand <= -3e+68) {
tmp = rand * Math.sqrt((0.1111111111111111 * (a + -0.3333333333333333)));
} else if (rand <= 2.2e+80) {
tmp = a - 0.3333333333333333;
} else {
tmp = Math.sqrt((a + -0.3333333333333333)) * (rand * 0.3333333333333333);
}
return tmp;
}
def code(a, rand): tmp = 0 if rand <= -3e+68: tmp = rand * math.sqrt((0.1111111111111111 * (a + -0.3333333333333333))) elif rand <= 2.2e+80: tmp = a - 0.3333333333333333 else: tmp = math.sqrt((a + -0.3333333333333333)) * (rand * 0.3333333333333333) return tmp
function code(a, rand) tmp = 0.0 if (rand <= -3e+68) tmp = Float64(rand * sqrt(Float64(0.1111111111111111 * Float64(a + -0.3333333333333333)))); elseif (rand <= 2.2e+80) tmp = Float64(a - 0.3333333333333333); else tmp = Float64(sqrt(Float64(a + -0.3333333333333333)) * Float64(rand * 0.3333333333333333)); end return tmp end
function tmp_2 = code(a, rand) tmp = 0.0; if (rand <= -3e+68) tmp = rand * sqrt((0.1111111111111111 * (a + -0.3333333333333333))); elseif (rand <= 2.2e+80) tmp = a - 0.3333333333333333; else tmp = sqrt((a + -0.3333333333333333)) * (rand * 0.3333333333333333); end tmp_2 = tmp; end
code[a_, rand_] := If[LessEqual[rand, -3e+68], N[(rand * N[Sqrt[N[(0.1111111111111111 * N[(a + -0.3333333333333333), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision], If[LessEqual[rand, 2.2e+80], N[(a - 0.3333333333333333), $MachinePrecision], N[(N[Sqrt[N[(a + -0.3333333333333333), $MachinePrecision]], $MachinePrecision] * N[(rand * 0.3333333333333333), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;rand \leq -3 \cdot 10^{+68}:\\
\;\;\;\;rand \cdot \sqrt{0.1111111111111111 \cdot \left(a + -0.3333333333333333\right)}\\
\mathbf{elif}\;rand \leq 2.2 \cdot 10^{+80}:\\
\;\;\;\;a - 0.3333333333333333\\
\mathbf{else}:\\
\;\;\;\;\sqrt{a + -0.3333333333333333} \cdot \left(rand \cdot 0.3333333333333333\right)\\
\end{array}
\end{array}
if rand < -3.0000000000000002e68Initial program 99.5%
sub-neg99.5%
metadata-eval99.5%
metadata-eval99.5%
*-commutative99.5%
sub-neg99.5%
metadata-eval99.5%
metadata-eval99.5%
Simplified99.5%
add-sqr-sqrt99.3%
sqrt-unprod99.5%
frac-times99.5%
metadata-eval99.5%
add-sqr-sqrt99.6%
*-commutative99.6%
distribute-rgt-in99.6%
metadata-eval99.6%
fma-udef99.6%
Applied egg-rr99.6%
metadata-eval99.6%
fma-neg99.6%
*-commutative99.6%
sub-neg99.6%
metadata-eval99.6%
metadata-eval99.6%
distribute-lft-in99.6%
associate-/r*99.7%
metadata-eval99.7%
Simplified99.7%
Taylor expanded in rand around inf 79.5%
add-log-exp19.8%
associate-*r*19.8%
sub-neg19.8%
metadata-eval19.8%
+-commutative19.8%
exp-prod19.8%
+-commutative19.8%
metadata-eval19.8%
sub-neg19.8%
exp-prod19.8%
sub-neg19.8%
metadata-eval19.8%
+-commutative19.8%
Applied egg-rr19.8%
log-pow24.1%
log-pow99.5%
rem-log-exp99.5%
*-commutative99.5%
Simplified83.3%
add-sqr-sqrt99.3%
sqrt-unprod99.5%
*-commutative99.5%
+-commutative99.5%
metadata-eval99.5%
sub-neg99.5%
*-commutative99.5%
+-commutative99.5%
metadata-eval99.5%
sub-neg99.5%
swap-sqr99.5%
add-sqr-sqrt99.6%
sub-neg99.6%
metadata-eval99.6%
+-commutative99.6%
metadata-eval99.6%
Applied egg-rr83.4%
if -3.0000000000000002e68 < rand < 2.20000000000000003e80Initial program 100.0%
remove-double-neg100.0%
remove-double-neg100.0%
sub-neg100.0%
metadata-eval100.0%
metadata-eval100.0%
remove-double-neg100.0%
remove-double-neg100.0%
associate-*l/100.0%
*-lft-identity100.0%
sub-neg100.0%
distribute-lft-in100.0%
metadata-eval100.0%
metadata-eval100.0%
metadata-eval100.0%
Simplified100.0%
Taylor expanded in rand around 0 96.2%
if 2.20000000000000003e80 < rand Initial program 99.5%
sub-neg99.5%
metadata-eval99.5%
metadata-eval99.5%
*-commutative99.5%
sub-neg99.5%
metadata-eval99.5%
metadata-eval99.5%
Simplified99.5%
add-sqr-sqrt99.2%
sqrt-unprod99.5%
frac-times99.4%
metadata-eval99.4%
add-sqr-sqrt99.5%
*-commutative99.5%
distribute-rgt-in99.5%
metadata-eval99.5%
fma-udef99.5%
Applied egg-rr99.5%
metadata-eval99.5%
fma-neg99.5%
*-commutative99.5%
sub-neg99.5%
metadata-eval99.5%
metadata-eval99.5%
distribute-lft-in99.5%
associate-/r*99.6%
metadata-eval99.6%
Simplified99.6%
Taylor expanded in rand around 0 99.6%
associate--l+99.6%
associate-*r*99.6%
sub-neg99.6%
metadata-eval99.6%
fma-def99.6%
sub-neg99.6%
metadata-eval99.6%
+-commutative99.6%
+-commutative99.6%
Simplified99.6%
Taylor expanded in rand around inf 92.7%
associate-*r*92.6%
sub-neg92.6%
metadata-eval92.6%
+-commutative92.6%
*-commutative92.6%
associate-*r*92.8%
Simplified92.8%
Final simplification93.4%
(FPCore (a rand) :precision binary64 (* (+ 1.0 (* rand (sqrt (/ 0.1111111111111111 a)))) (+ a -0.3333333333333333)))
double code(double a, double rand) {
return (1.0 + (rand * sqrt((0.1111111111111111 / a)))) * (a + -0.3333333333333333);
}
real(8) function code(a, rand)
real(8), intent (in) :: a
real(8), intent (in) :: rand
code = (1.0d0 + (rand * sqrt((0.1111111111111111d0 / a)))) * (a + (-0.3333333333333333d0))
end function
public static double code(double a, double rand) {
return (1.0 + (rand * Math.sqrt((0.1111111111111111 / a)))) * (a + -0.3333333333333333);
}
def code(a, rand): return (1.0 + (rand * math.sqrt((0.1111111111111111 / a)))) * (a + -0.3333333333333333)
function code(a, rand) return Float64(Float64(1.0 + Float64(rand * sqrt(Float64(0.1111111111111111 / a)))) * Float64(a + -0.3333333333333333)) end
function tmp = code(a, rand) tmp = (1.0 + (rand * sqrt((0.1111111111111111 / a)))) * (a + -0.3333333333333333); end
code[a_, rand_] := N[(N[(1.0 + N[(rand * N[Sqrt[N[(0.1111111111111111 / a), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]), $MachinePrecision] * N[(a + -0.3333333333333333), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\left(1 + rand \cdot \sqrt{\frac{0.1111111111111111}{a}}\right) \cdot \left(a + -0.3333333333333333\right)
\end{array}
Initial program 99.8%
sub-neg99.8%
metadata-eval99.8%
metadata-eval99.8%
*-commutative99.8%
sub-neg99.8%
metadata-eval99.8%
metadata-eval99.8%
Simplified99.8%
add-sqr-sqrt99.7%
sqrt-unprod99.8%
frac-times99.8%
metadata-eval99.8%
add-sqr-sqrt99.8%
*-commutative99.8%
distribute-rgt-in99.8%
metadata-eval99.8%
fma-udef99.8%
Applied egg-rr99.8%
metadata-eval99.8%
fma-neg99.8%
*-commutative99.8%
sub-neg99.8%
metadata-eval99.8%
metadata-eval99.8%
distribute-lft-in99.8%
associate-/r*99.9%
metadata-eval99.9%
Simplified99.9%
Taylor expanded in a around inf 99.0%
Final simplification99.0%
(FPCore (a rand) :precision binary64 (- (+ a (* 0.3333333333333333 (* rand (sqrt (- a 0.3333333333333333))))) 0.3333333333333333))
double code(double a, double rand) {
return (a + (0.3333333333333333 * (rand * sqrt((a - 0.3333333333333333))))) - 0.3333333333333333;
}
real(8) function code(a, rand)
real(8), intent (in) :: a
real(8), intent (in) :: rand
code = (a + (0.3333333333333333d0 * (rand * sqrt((a - 0.3333333333333333d0))))) - 0.3333333333333333d0
end function
public static double code(double a, double rand) {
return (a + (0.3333333333333333 * (rand * Math.sqrt((a - 0.3333333333333333))))) - 0.3333333333333333;
}
def code(a, rand): return (a + (0.3333333333333333 * (rand * math.sqrt((a - 0.3333333333333333))))) - 0.3333333333333333
function code(a, rand) return Float64(Float64(a + Float64(0.3333333333333333 * Float64(rand * sqrt(Float64(a - 0.3333333333333333))))) - 0.3333333333333333) end
function tmp = code(a, rand) tmp = (a + (0.3333333333333333 * (rand * sqrt((a - 0.3333333333333333))))) - 0.3333333333333333; end
code[a_, rand_] := N[(N[(a + N[(0.3333333333333333 * N[(rand * N[Sqrt[N[(a - 0.3333333333333333), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] - 0.3333333333333333), $MachinePrecision]
\begin{array}{l}
\\
\left(a + 0.3333333333333333 \cdot \left(rand \cdot \sqrt{a - 0.3333333333333333}\right)\right) - 0.3333333333333333
\end{array}
Initial program 99.8%
sub-neg99.8%
metadata-eval99.8%
metadata-eval99.8%
*-commutative99.8%
sub-neg99.8%
metadata-eval99.8%
metadata-eval99.8%
Simplified99.8%
add-sqr-sqrt99.7%
sqrt-unprod99.8%
frac-times99.8%
metadata-eval99.8%
add-sqr-sqrt99.8%
*-commutative99.8%
distribute-rgt-in99.8%
metadata-eval99.8%
fma-udef99.8%
Applied egg-rr99.8%
metadata-eval99.8%
fma-neg99.8%
*-commutative99.8%
sub-neg99.8%
metadata-eval99.8%
metadata-eval99.8%
distribute-lft-in99.8%
associate-/r*99.9%
metadata-eval99.9%
Simplified99.9%
Taylor expanded in rand around 0 99.2%
Final simplification99.2%
(FPCore (a rand) :precision binary64 (- a 0.3333333333333333))
double code(double a, double rand) {
return a - 0.3333333333333333;
}
real(8) function code(a, rand)
real(8), intent (in) :: a
real(8), intent (in) :: rand
code = a - 0.3333333333333333d0
end function
public static double code(double a, double rand) {
return a - 0.3333333333333333;
}
def code(a, rand): return a - 0.3333333333333333
function code(a, rand) return Float64(a - 0.3333333333333333) end
function tmp = code(a, rand) tmp = a - 0.3333333333333333; end
code[a_, rand_] := N[(a - 0.3333333333333333), $MachinePrecision]
\begin{array}{l}
\\
a - 0.3333333333333333
\end{array}
Initial program 99.8%
remove-double-neg99.8%
remove-double-neg99.8%
sub-neg99.8%
metadata-eval99.8%
metadata-eval99.8%
remove-double-neg99.8%
remove-double-neg99.8%
associate-*l/99.8%
*-lft-identity99.8%
sub-neg99.8%
distribute-lft-in99.8%
metadata-eval99.8%
metadata-eval99.8%
metadata-eval99.8%
Simplified99.8%
Taylor expanded in rand around 0 65.5%
Final simplification65.5%
(FPCore (a rand) :precision binary64 a)
double code(double a, double rand) {
return a;
}
real(8) function code(a, rand)
real(8), intent (in) :: a
real(8), intent (in) :: rand
code = a
end function
public static double code(double a, double rand) {
return a;
}
def code(a, rand): return a
function code(a, rand) return a end
function tmp = code(a, rand) tmp = a; end
code[a_, rand_] := a
\begin{array}{l}
\\
a
\end{array}
Initial program 99.8%
remove-double-neg99.8%
remove-double-neg99.8%
sub-neg99.8%
metadata-eval99.8%
metadata-eval99.8%
remove-double-neg99.8%
remove-double-neg99.8%
associate-*l/99.8%
*-lft-identity99.8%
sub-neg99.8%
distribute-lft-in99.8%
metadata-eval99.8%
metadata-eval99.8%
metadata-eval99.8%
Simplified99.8%
Taylor expanded in a around inf 64.7%
Final simplification64.7%
herbie shell --seed 2023200
(FPCore (a rand)
:name "Octave 3.8, oct_fill_randg"
:precision binary64
(* (- a (/ 1.0 3.0)) (+ 1.0 (* (/ 1.0 (sqrt (* 9.0 (- a (/ 1.0 3.0))))) rand))))