
(FPCore (x) :precision binary64 (log (/ (sinh x) x)))
double code(double x) {
return log((sinh(x) / x));
}
real(8) function code(x)
real(8), intent (in) :: x
code = log((sinh(x) / x))
end function
public static double code(double x) {
return Math.log((Math.sinh(x) / x));
}
def code(x): return math.log((math.sinh(x) / x))
function code(x) return log(Float64(sinh(x) / x)) end
function tmp = code(x) tmp = log((sinh(x) / x)); end
code[x_] := N[Log[N[(N[Sinh[x], $MachinePrecision] / x), $MachinePrecision]], $MachinePrecision]
\begin{array}{l}
\\
\log \left(\frac{\sinh x}{x}\right)
\end{array}
Sampling outcomes in binary64 precision:
Herbie found 8 alternatives:
| Alternative | Accuracy | Speedup |
|---|
(FPCore (x) :precision binary64 (log (/ (sinh x) x)))
double code(double x) {
return log((sinh(x) / x));
}
real(8) function code(x)
real(8), intent (in) :: x
code = log((sinh(x) / x))
end function
public static double code(double x) {
return Math.log((Math.sinh(x) / x));
}
def code(x): return math.log((math.sinh(x) / x))
function code(x) return log(Float64(sinh(x) / x)) end
function tmp = code(x) tmp = log((sinh(x) / x)); end
code[x_] := N[Log[N[(N[Sinh[x], $MachinePrecision] / x), $MachinePrecision]], $MachinePrecision]
\begin{array}{l}
\\
\log \left(\frac{\sinh x}{x}\right)
\end{array}
x_m = (fabs.f64 x)
(FPCore (x_m)
:precision binary64
(if (<= (/ (sinh x_m) x_m) 1.005)
(*
x_m
(*
x_m
(fma
(pow x_m 2.0)
(fma 0.0003527336860670194 (pow x_m 2.0) -0.005555555555555556)
0.16666666666666666)))
(- (log (sinh x_m)) (log x_m))))x_m = fabs(x);
double code(double x_m) {
double tmp;
if ((sinh(x_m) / x_m) <= 1.005) {
tmp = x_m * (x_m * fma(pow(x_m, 2.0), fma(0.0003527336860670194, pow(x_m, 2.0), -0.005555555555555556), 0.16666666666666666));
} else {
tmp = log(sinh(x_m)) - log(x_m);
}
return tmp;
}
x_m = abs(x) function code(x_m) tmp = 0.0 if (Float64(sinh(x_m) / x_m) <= 1.005) tmp = Float64(x_m * Float64(x_m * fma((x_m ^ 2.0), fma(0.0003527336860670194, (x_m ^ 2.0), -0.005555555555555556), 0.16666666666666666))); else tmp = Float64(log(sinh(x_m)) - log(x_m)); end return tmp end
x_m = N[Abs[x], $MachinePrecision] code[x$95$m_] := If[LessEqual[N[(N[Sinh[x$95$m], $MachinePrecision] / x$95$m), $MachinePrecision], 1.005], N[(x$95$m * N[(x$95$m * N[(N[Power[x$95$m, 2.0], $MachinePrecision] * N[(0.0003527336860670194 * N[Power[x$95$m, 2.0], $MachinePrecision] + -0.005555555555555556), $MachinePrecision] + 0.16666666666666666), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[Log[N[Sinh[x$95$m], $MachinePrecision]], $MachinePrecision] - N[Log[x$95$m], $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
x_m = \left|x\right|
\\
\begin{array}{l}
\mathbf{if}\;\frac{\sinh x\_m}{x\_m} \leq 1.005:\\
\;\;\;\;x\_m \cdot \left(x\_m \cdot \mathsf{fma}\left({x\_m}^{2}, \mathsf{fma}\left(0.0003527336860670194, {x\_m}^{2}, -0.005555555555555556\right), 0.16666666666666666\right)\right)\\
\mathbf{else}:\\
\;\;\;\;\log \sinh x\_m - \log x\_m\\
\end{array}
\end{array}
if (/.f64 (sinh.f64 x) x) < 1.0049999999999999Initial program 51.0%
Taylor expanded in x around 0 99.7%
add-sqr-sqrt99.5%
pow299.5%
sqrt-prod99.6%
sqrt-pow199.6%
metadata-eval99.6%
pow199.6%
+-commutative99.6%
fma-define99.6%
fma-neg99.6%
metadata-eval99.6%
Applied egg-rr99.6%
unpow299.6%
*-commutative99.6%
*-commutative99.6%
swap-sqr99.7%
add-sqr-sqrt99.7%
fma-undefine99.7%
pow299.7%
metadata-eval99.7%
fma-neg99.7%
+-commutative99.7%
associate-*r*99.7%
Applied egg-rr99.7%
if 1.0049999999999999 < (/.f64 (sinh.f64 x) x) Initial program 76.8%
log-div44.1%
sub-neg44.1%
Applied egg-rr44.1%
sub-neg44.1%
Simplified44.1%
Final simplification97.8%
x_m = (fabs.f64 x)
(FPCore (x_m)
:precision binary64
(if (<= (/ (sinh x_m) x_m) 1.005)
(*
(pow x_m 2.0)
(+
0.16666666666666666
(*
(* x_m x_m)
(- (* 0.0003527336860670194 (* x_m x_m)) 0.005555555555555556))))
(- (log (sinh x_m)) (log x_m))))x_m = fabs(x);
double code(double x_m) {
double tmp;
if ((sinh(x_m) / x_m) <= 1.005) {
tmp = pow(x_m, 2.0) * (0.16666666666666666 + ((x_m * x_m) * ((0.0003527336860670194 * (x_m * x_m)) - 0.005555555555555556)));
} else {
tmp = log(sinh(x_m)) - log(x_m);
}
return tmp;
}
x_m = abs(x)
real(8) function code(x_m)
real(8), intent (in) :: x_m
real(8) :: tmp
if ((sinh(x_m) / x_m) <= 1.005d0) then
tmp = (x_m ** 2.0d0) * (0.16666666666666666d0 + ((x_m * x_m) * ((0.0003527336860670194d0 * (x_m * x_m)) - 0.005555555555555556d0)))
else
tmp = log(sinh(x_m)) - log(x_m)
end if
code = tmp
end function
x_m = Math.abs(x);
public static double code(double x_m) {
double tmp;
if ((Math.sinh(x_m) / x_m) <= 1.005) {
tmp = Math.pow(x_m, 2.0) * (0.16666666666666666 + ((x_m * x_m) * ((0.0003527336860670194 * (x_m * x_m)) - 0.005555555555555556)));
} else {
tmp = Math.log(Math.sinh(x_m)) - Math.log(x_m);
}
return tmp;
}
x_m = math.fabs(x) def code(x_m): tmp = 0 if (math.sinh(x_m) / x_m) <= 1.005: tmp = math.pow(x_m, 2.0) * (0.16666666666666666 + ((x_m * x_m) * ((0.0003527336860670194 * (x_m * x_m)) - 0.005555555555555556))) else: tmp = math.log(math.sinh(x_m)) - math.log(x_m) return tmp
x_m = abs(x) function code(x_m) tmp = 0.0 if (Float64(sinh(x_m) / x_m) <= 1.005) tmp = Float64((x_m ^ 2.0) * Float64(0.16666666666666666 + Float64(Float64(x_m * x_m) * Float64(Float64(0.0003527336860670194 * Float64(x_m * x_m)) - 0.005555555555555556)))); else tmp = Float64(log(sinh(x_m)) - log(x_m)); end return tmp end
x_m = abs(x); function tmp_2 = code(x_m) tmp = 0.0; if ((sinh(x_m) / x_m) <= 1.005) tmp = (x_m ^ 2.0) * (0.16666666666666666 + ((x_m * x_m) * ((0.0003527336860670194 * (x_m * x_m)) - 0.005555555555555556))); else tmp = log(sinh(x_m)) - log(x_m); end tmp_2 = tmp; end
x_m = N[Abs[x], $MachinePrecision] code[x$95$m_] := If[LessEqual[N[(N[Sinh[x$95$m], $MachinePrecision] / x$95$m), $MachinePrecision], 1.005], N[(N[Power[x$95$m, 2.0], $MachinePrecision] * N[(0.16666666666666666 + N[(N[(x$95$m * x$95$m), $MachinePrecision] * N[(N[(0.0003527336860670194 * N[(x$95$m * x$95$m), $MachinePrecision]), $MachinePrecision] - 0.005555555555555556), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[Log[N[Sinh[x$95$m], $MachinePrecision]], $MachinePrecision] - N[Log[x$95$m], $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
x_m = \left|x\right|
\\
\begin{array}{l}
\mathbf{if}\;\frac{\sinh x\_m}{x\_m} \leq 1.005:\\
\;\;\;\;{x\_m}^{2} \cdot \left(0.16666666666666666 + \left(x\_m \cdot x\_m\right) \cdot \left(0.0003527336860670194 \cdot \left(x\_m \cdot x\_m\right) - 0.005555555555555556\right)\right)\\
\mathbf{else}:\\
\;\;\;\;\log \sinh x\_m - \log x\_m\\
\end{array}
\end{array}
if (/.f64 (sinh.f64 x) x) < 1.0049999999999999Initial program 51.0%
Taylor expanded in x around 0 99.7%
unpow299.7%
Applied egg-rr99.7%
unpow299.7%
Applied egg-rr99.7%
if 1.0049999999999999 < (/.f64 (sinh.f64 x) x) Initial program 76.8%
log-div44.1%
sub-neg44.1%
Applied egg-rr44.1%
sub-neg44.1%
Simplified44.1%
x_m = (fabs.f64 x)
(FPCore (x_m)
:precision binary64
(if (<= (/ (sinh x_m) x_m) 1.005)
(*
(pow x_m 2.0)
(+
0.16666666666666666
(*
(* x_m x_m)
(- (* 0.0003527336860670194 (* x_m x_m)) 0.005555555555555556))))
(- 1.0 (log (* (/ x_m (sinh x_m)) E)))))x_m = fabs(x);
double code(double x_m) {
double tmp;
if ((sinh(x_m) / x_m) <= 1.005) {
tmp = pow(x_m, 2.0) * (0.16666666666666666 + ((x_m * x_m) * ((0.0003527336860670194 * (x_m * x_m)) - 0.005555555555555556)));
} else {
tmp = 1.0 - log(((x_m / sinh(x_m)) * ((double) M_E)));
}
return tmp;
}
x_m = Math.abs(x);
public static double code(double x_m) {
double tmp;
if ((Math.sinh(x_m) / x_m) <= 1.005) {
tmp = Math.pow(x_m, 2.0) * (0.16666666666666666 + ((x_m * x_m) * ((0.0003527336860670194 * (x_m * x_m)) - 0.005555555555555556)));
} else {
tmp = 1.0 - Math.log(((x_m / Math.sinh(x_m)) * Math.E));
}
return tmp;
}
x_m = math.fabs(x) def code(x_m): tmp = 0 if (math.sinh(x_m) / x_m) <= 1.005: tmp = math.pow(x_m, 2.0) * (0.16666666666666666 + ((x_m * x_m) * ((0.0003527336860670194 * (x_m * x_m)) - 0.005555555555555556))) else: tmp = 1.0 - math.log(((x_m / math.sinh(x_m)) * math.e)) return tmp
x_m = abs(x) function code(x_m) tmp = 0.0 if (Float64(sinh(x_m) / x_m) <= 1.005) tmp = Float64((x_m ^ 2.0) * Float64(0.16666666666666666 + Float64(Float64(x_m * x_m) * Float64(Float64(0.0003527336860670194 * Float64(x_m * x_m)) - 0.005555555555555556)))); else tmp = Float64(1.0 - log(Float64(Float64(x_m / sinh(x_m)) * exp(1)))); end return tmp end
x_m = abs(x); function tmp_2 = code(x_m) tmp = 0.0; if ((sinh(x_m) / x_m) <= 1.005) tmp = (x_m ^ 2.0) * (0.16666666666666666 + ((x_m * x_m) * ((0.0003527336860670194 * (x_m * x_m)) - 0.005555555555555556))); else tmp = 1.0 - log(((x_m / sinh(x_m)) * 2.71828182845904523536)); end tmp_2 = tmp; end
x_m = N[Abs[x], $MachinePrecision] code[x$95$m_] := If[LessEqual[N[(N[Sinh[x$95$m], $MachinePrecision] / x$95$m), $MachinePrecision], 1.005], N[(N[Power[x$95$m, 2.0], $MachinePrecision] * N[(0.16666666666666666 + N[(N[(x$95$m * x$95$m), $MachinePrecision] * N[(N[(0.0003527336860670194 * N[(x$95$m * x$95$m), $MachinePrecision]), $MachinePrecision] - 0.005555555555555556), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(1.0 - N[Log[N[(N[(x$95$m / N[Sinh[x$95$m], $MachinePrecision]), $MachinePrecision] * E), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
x_m = \left|x\right|
\\
\begin{array}{l}
\mathbf{if}\;\frac{\sinh x\_m}{x\_m} \leq 1.005:\\
\;\;\;\;{x\_m}^{2} \cdot \left(0.16666666666666666 + \left(x\_m \cdot x\_m\right) \cdot \left(0.0003527336860670194 \cdot \left(x\_m \cdot x\_m\right) - 0.005555555555555556\right)\right)\\
\mathbf{else}:\\
\;\;\;\;1 - \log \left(\frac{x\_m}{\sinh x\_m} \cdot e\right)\\
\end{array}
\end{array}
if (/.f64 (sinh.f64 x) x) < 1.0049999999999999Initial program 51.0%
Taylor expanded in x around 0 99.7%
unpow299.7%
Applied egg-rr99.7%
unpow299.7%
Applied egg-rr99.7%
if 1.0049999999999999 < (/.f64 (sinh.f64 x) x) Initial program 76.8%
clear-num76.6%
neg-log76.8%
Applied egg-rr76.8%
expm1-log1p-u31.6%
expm1-undefine31.5%
log1p-undefine31.5%
clear-num31.8%
log-rec32.0%
sub-neg32.0%
add-exp-log77.2%
sub-neg77.2%
log-rec77.0%
clear-num76.6%
Applied egg-rr76.6%
+-commutative76.6%
add-log-exp77.0%
exp-sum77.0%
add-exp-log77.0%
Applied egg-rr77.0%
exp-1-e77.0%
Simplified77.0%
Final simplification98.9%
x_m = (fabs.f64 x)
(FPCore (x_m)
:precision binary64
(let* ((t_0 (/ (sinh x_m) x_m)))
(if (<= t_0 1.005)
(*
(pow x_m 2.0)
(+
0.16666666666666666
(*
(* x_m x_m)
(- (* 0.0003527336860670194 (* x_m x_m)) 0.005555555555555556))))
(log t_0))))x_m = fabs(x);
double code(double x_m) {
double t_0 = sinh(x_m) / x_m;
double tmp;
if (t_0 <= 1.005) {
tmp = pow(x_m, 2.0) * (0.16666666666666666 + ((x_m * x_m) * ((0.0003527336860670194 * (x_m * x_m)) - 0.005555555555555556)));
} else {
tmp = log(t_0);
}
return tmp;
}
x_m = abs(x)
real(8) function code(x_m)
real(8), intent (in) :: x_m
real(8) :: t_0
real(8) :: tmp
t_0 = sinh(x_m) / x_m
if (t_0 <= 1.005d0) then
tmp = (x_m ** 2.0d0) * (0.16666666666666666d0 + ((x_m * x_m) * ((0.0003527336860670194d0 * (x_m * x_m)) - 0.005555555555555556d0)))
else
tmp = log(t_0)
end if
code = tmp
end function
x_m = Math.abs(x);
public static double code(double x_m) {
double t_0 = Math.sinh(x_m) / x_m;
double tmp;
if (t_0 <= 1.005) {
tmp = Math.pow(x_m, 2.0) * (0.16666666666666666 + ((x_m * x_m) * ((0.0003527336860670194 * (x_m * x_m)) - 0.005555555555555556)));
} else {
tmp = Math.log(t_0);
}
return tmp;
}
x_m = math.fabs(x) def code(x_m): t_0 = math.sinh(x_m) / x_m tmp = 0 if t_0 <= 1.005: tmp = math.pow(x_m, 2.0) * (0.16666666666666666 + ((x_m * x_m) * ((0.0003527336860670194 * (x_m * x_m)) - 0.005555555555555556))) else: tmp = math.log(t_0) return tmp
x_m = abs(x) function code(x_m) t_0 = Float64(sinh(x_m) / x_m) tmp = 0.0 if (t_0 <= 1.005) tmp = Float64((x_m ^ 2.0) * Float64(0.16666666666666666 + Float64(Float64(x_m * x_m) * Float64(Float64(0.0003527336860670194 * Float64(x_m * x_m)) - 0.005555555555555556)))); else tmp = log(t_0); end return tmp end
x_m = abs(x); function tmp_2 = code(x_m) t_0 = sinh(x_m) / x_m; tmp = 0.0; if (t_0 <= 1.005) tmp = (x_m ^ 2.0) * (0.16666666666666666 + ((x_m * x_m) * ((0.0003527336860670194 * (x_m * x_m)) - 0.005555555555555556))); else tmp = log(t_0); end tmp_2 = tmp; end
x_m = N[Abs[x], $MachinePrecision]
code[x$95$m_] := Block[{t$95$0 = N[(N[Sinh[x$95$m], $MachinePrecision] / x$95$m), $MachinePrecision]}, If[LessEqual[t$95$0, 1.005], N[(N[Power[x$95$m, 2.0], $MachinePrecision] * N[(0.16666666666666666 + N[(N[(x$95$m * x$95$m), $MachinePrecision] * N[(N[(0.0003527336860670194 * N[(x$95$m * x$95$m), $MachinePrecision]), $MachinePrecision] - 0.005555555555555556), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[Log[t$95$0], $MachinePrecision]]]
\begin{array}{l}
x_m = \left|x\right|
\\
\begin{array}{l}
t_0 := \frac{\sinh x\_m}{x\_m}\\
\mathbf{if}\;t\_0 \leq 1.005:\\
\;\;\;\;{x\_m}^{2} \cdot \left(0.16666666666666666 + \left(x\_m \cdot x\_m\right) \cdot \left(0.0003527336860670194 \cdot \left(x\_m \cdot x\_m\right) - 0.005555555555555556\right)\right)\\
\mathbf{else}:\\
\;\;\;\;\log t\_0\\
\end{array}
\end{array}
if (/.f64 (sinh.f64 x) x) < 1.0049999999999999Initial program 51.0%
Taylor expanded in x around 0 99.7%
unpow299.7%
Applied egg-rr99.7%
unpow299.7%
Applied egg-rr99.7%
if 1.0049999999999999 < (/.f64 (sinh.f64 x) x) Initial program 76.8%
x_m = (fabs.f64 x)
(FPCore (x_m)
:precision binary64
(*
(pow x_m 2.0)
(+
0.16666666666666666
(*
(* x_m x_m)
(- (* 0.0003527336860670194 (* x_m x_m)) 0.005555555555555556)))))x_m = fabs(x);
double code(double x_m) {
return pow(x_m, 2.0) * (0.16666666666666666 + ((x_m * x_m) * ((0.0003527336860670194 * (x_m * x_m)) - 0.005555555555555556)));
}
x_m = abs(x)
real(8) function code(x_m)
real(8), intent (in) :: x_m
code = (x_m ** 2.0d0) * (0.16666666666666666d0 + ((x_m * x_m) * ((0.0003527336860670194d0 * (x_m * x_m)) - 0.005555555555555556d0)))
end function
x_m = Math.abs(x);
public static double code(double x_m) {
return Math.pow(x_m, 2.0) * (0.16666666666666666 + ((x_m * x_m) * ((0.0003527336860670194 * (x_m * x_m)) - 0.005555555555555556)));
}
x_m = math.fabs(x) def code(x_m): return math.pow(x_m, 2.0) * (0.16666666666666666 + ((x_m * x_m) * ((0.0003527336860670194 * (x_m * x_m)) - 0.005555555555555556)))
x_m = abs(x) function code(x_m) return Float64((x_m ^ 2.0) * Float64(0.16666666666666666 + Float64(Float64(x_m * x_m) * Float64(Float64(0.0003527336860670194 * Float64(x_m * x_m)) - 0.005555555555555556)))) end
x_m = abs(x); function tmp = code(x_m) tmp = (x_m ^ 2.0) * (0.16666666666666666 + ((x_m * x_m) * ((0.0003527336860670194 * (x_m * x_m)) - 0.005555555555555556))); end
x_m = N[Abs[x], $MachinePrecision] code[x$95$m_] := N[(N[Power[x$95$m, 2.0], $MachinePrecision] * N[(0.16666666666666666 + N[(N[(x$95$m * x$95$m), $MachinePrecision] * N[(N[(0.0003527336860670194 * N[(x$95$m * x$95$m), $MachinePrecision]), $MachinePrecision] - 0.005555555555555556), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
x_m = \left|x\right|
\\
{x\_m}^{2} \cdot \left(0.16666666666666666 + \left(x\_m \cdot x\_m\right) \cdot \left(0.0003527336860670194 \cdot \left(x\_m \cdot x\_m\right) - 0.005555555555555556\right)\right)
\end{array}
Initial program 51.9%
Taylor expanded in x around 0 97.0%
unpow297.0%
Applied egg-rr97.0%
unpow297.0%
Applied egg-rr97.0%
x_m = (fabs.f64 x) (FPCore (x_m) :precision binary64 (* x_m (* x_m (+ 0.16666666666666666 (* (pow x_m 2.0) -0.005555555555555556)))))
x_m = fabs(x);
double code(double x_m) {
return x_m * (x_m * (0.16666666666666666 + (pow(x_m, 2.0) * -0.005555555555555556)));
}
x_m = abs(x)
real(8) function code(x_m)
real(8), intent (in) :: x_m
code = x_m * (x_m * (0.16666666666666666d0 + ((x_m ** 2.0d0) * (-0.005555555555555556d0))))
end function
x_m = Math.abs(x);
public static double code(double x_m) {
return x_m * (x_m * (0.16666666666666666 + (Math.pow(x_m, 2.0) * -0.005555555555555556)));
}
x_m = math.fabs(x) def code(x_m): return x_m * (x_m * (0.16666666666666666 + (math.pow(x_m, 2.0) * -0.005555555555555556)))
x_m = abs(x) function code(x_m) return Float64(x_m * Float64(x_m * Float64(0.16666666666666666 + Float64((x_m ^ 2.0) * -0.005555555555555556)))) end
x_m = abs(x); function tmp = code(x_m) tmp = x_m * (x_m * (0.16666666666666666 + ((x_m ^ 2.0) * -0.005555555555555556))); end
x_m = N[Abs[x], $MachinePrecision] code[x$95$m_] := N[(x$95$m * N[(x$95$m * N[(0.16666666666666666 + N[(N[Power[x$95$m, 2.0], $MachinePrecision] * -0.005555555555555556), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
x_m = \left|x\right|
\\
x\_m \cdot \left(x\_m \cdot \left(0.16666666666666666 + {x\_m}^{2} \cdot -0.005555555555555556\right)\right)
\end{array}
Initial program 51.9%
Taylor expanded in x around 0 97.0%
add-sqr-sqrt96.8%
pow296.8%
sqrt-prod96.8%
sqrt-pow196.8%
metadata-eval96.8%
pow196.8%
+-commutative96.8%
fma-define96.8%
fma-neg96.8%
metadata-eval96.8%
Applied egg-rr96.8%
unpow296.8%
*-commutative96.8%
*-commutative96.8%
swap-sqr97.0%
add-sqr-sqrt97.0%
fma-undefine97.0%
pow297.0%
metadata-eval97.0%
fma-neg97.0%
+-commutative97.0%
associate-*r*97.0%
Applied egg-rr97.0%
Taylor expanded in x around 0 96.6%
Final simplification96.6%
x_m = (fabs.f64 x) (FPCore (x_m) :precision binary64 (* x_m (* x_m 0.16666666666666666)))
x_m = fabs(x);
double code(double x_m) {
return x_m * (x_m * 0.16666666666666666);
}
x_m = abs(x)
real(8) function code(x_m)
real(8), intent (in) :: x_m
code = x_m * (x_m * 0.16666666666666666d0)
end function
x_m = Math.abs(x);
public static double code(double x_m) {
return x_m * (x_m * 0.16666666666666666);
}
x_m = math.fabs(x) def code(x_m): return x_m * (x_m * 0.16666666666666666)
x_m = abs(x) function code(x_m) return Float64(x_m * Float64(x_m * 0.16666666666666666)) end
x_m = abs(x); function tmp = code(x_m) tmp = x_m * (x_m * 0.16666666666666666); end
x_m = N[Abs[x], $MachinePrecision] code[x$95$m_] := N[(x$95$m * N[(x$95$m * 0.16666666666666666), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
x_m = \left|x\right|
\\
x\_m \cdot \left(x\_m \cdot 0.16666666666666666\right)
\end{array}
Initial program 51.9%
Taylor expanded in x around 0 97.0%
add-sqr-sqrt96.8%
pow296.8%
sqrt-prod96.8%
sqrt-pow196.8%
metadata-eval96.8%
pow196.8%
+-commutative96.8%
fma-define96.8%
fma-neg96.8%
metadata-eval96.8%
Applied egg-rr96.8%
unpow296.8%
*-commutative96.8%
*-commutative96.8%
swap-sqr97.0%
add-sqr-sqrt97.0%
fma-undefine97.0%
pow297.0%
metadata-eval97.0%
fma-neg97.0%
+-commutative97.0%
associate-*r*97.0%
Applied egg-rr97.0%
Taylor expanded in x around 0 96.4%
Final simplification96.4%
x_m = (fabs.f64 x) (FPCore (x_m) :precision binary64 0.0)
x_m = fabs(x);
double code(double x_m) {
return 0.0;
}
x_m = abs(x)
real(8) function code(x_m)
real(8), intent (in) :: x_m
code = 0.0d0
end function
x_m = Math.abs(x);
public static double code(double x_m) {
return 0.0;
}
x_m = math.fabs(x) def code(x_m): return 0.0
x_m = abs(x) function code(x_m) return 0.0 end
x_m = abs(x); function tmp = code(x_m) tmp = 0.0; end
x_m = N[Abs[x], $MachinePrecision] code[x$95$m_] := 0.0
\begin{array}{l}
x_m = \left|x\right|
\\
0
\end{array}
Initial program 51.9%
Taylor expanded in x around 0 48.5%
metadata-eval48.5%
Applied egg-rr48.5%
(FPCore (x)
:precision binary64
(if (< (fabs x) 0.085)
(*
(* x x)
(fma
(fma
(fma -2.6455026455026456e-5 (* x x) 0.0003527336860670194)
(* x x)
-0.005555555555555556)
(* x x)
0.16666666666666666))
(log (/ (sinh x) x))))
double code(double x) {
double tmp;
if (fabs(x) < 0.085) {
tmp = (x * x) * fma(fma(fma(-2.6455026455026456e-5, (x * x), 0.0003527336860670194), (x * x), -0.005555555555555556), (x * x), 0.16666666666666666);
} else {
tmp = log((sinh(x) / x));
}
return tmp;
}
function code(x) tmp = 0.0 if (abs(x) < 0.085) tmp = Float64(Float64(x * x) * fma(fma(fma(-2.6455026455026456e-5, Float64(x * x), 0.0003527336860670194), Float64(x * x), -0.005555555555555556), Float64(x * x), 0.16666666666666666)); else tmp = log(Float64(sinh(x) / x)); end return tmp end
code[x_] := If[Less[N[Abs[x], $MachinePrecision], 0.085], N[(N[(x * x), $MachinePrecision] * N[(N[(N[(-2.6455026455026456e-5 * N[(x * x), $MachinePrecision] + 0.0003527336860670194), $MachinePrecision] * N[(x * x), $MachinePrecision] + -0.005555555555555556), $MachinePrecision] * N[(x * x), $MachinePrecision] + 0.16666666666666666), $MachinePrecision]), $MachinePrecision], N[Log[N[(N[Sinh[x], $MachinePrecision] / x), $MachinePrecision]], $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;\left|x\right| < 0.085:\\
\;\;\;\;\left(x \cdot x\right) \cdot \mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(-2.6455026455026456 \cdot 10^{-5}, x \cdot x, 0.0003527336860670194\right), x \cdot x, -0.005555555555555556\right), x \cdot x, 0.16666666666666666\right)\\
\mathbf{else}:\\
\;\;\;\;\log \left(\frac{\sinh x}{x}\right)\\
\end{array}
\end{array}
herbie shell --seed 2024110
(FPCore (x)
:name "bug500, discussion (missed optimization)"
:precision binary64
:alt
(if (< (fabs x) 0.085) (* (* x x) (fma (fma (fma -2.6455026455026456e-5 (* x x) 0.0003527336860670194) (* x x) -0.005555555555555556) (* x x) 0.16666666666666666)) (log (/ (sinh x) x)))
(log (/ (sinh x) x)))