
(FPCore (N) :precision binary64 (- (log (+ N 1.0)) (log N)))
double code(double N) {
return log((N + 1.0)) - log(N);
}
real(8) function code(n)
real(8), intent (in) :: n
code = log((n + 1.0d0)) - log(n)
end function
public static double code(double N) {
return Math.log((N + 1.0)) - Math.log(N);
}
def code(N): return math.log((N + 1.0)) - math.log(N)
function code(N) return Float64(log(Float64(N + 1.0)) - log(N)) end
function tmp = code(N) tmp = log((N + 1.0)) - log(N); end
code[N_] := N[(N[Log[N[(N + 1.0), $MachinePrecision]], $MachinePrecision] - N[Log[N], $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\log \left(N + 1\right) - \log N
\end{array}
Sampling outcomes in binary64 precision:
Herbie found 15 alternatives:
| Alternative | Accuracy | Speedup |
|---|
(FPCore (N) :precision binary64 (- (log (+ N 1.0)) (log N)))
double code(double N) {
return log((N + 1.0)) - log(N);
}
real(8) function code(n)
real(8), intent (in) :: n
code = log((n + 1.0d0)) - log(n)
end function
public static double code(double N) {
return Math.log((N + 1.0)) - Math.log(N);
}
def code(N): return math.log((N + 1.0)) - math.log(N)
function code(N) return Float64(log(Float64(N + 1.0)) - log(N)) end
function tmp = code(N) tmp = log((N + 1.0)) - log(N); end
code[N_] := N[(N[Log[N[(N + 1.0), $MachinePrecision]], $MachinePrecision] - N[Log[N], $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\log \left(N + 1\right) - \log N
\end{array}
(FPCore (N)
:precision binary64
(let* ((t_0 (/ (+ 0.08333333333333333 (/ -0.041666666666666664 N)) N)))
(if (<= (- (log (+ N 1.0)) (log N)) 0.001)
(/
1.0
(/
(* N (+ -1.0 (* (/ (+ -0.5 t_0) N) (/ (- t_0 0.5) N))))
(+ (/ (- 0.5 t_0) N) -1.0)))
(/
(*
(/
(+ (exp (* 3.0 (log (log N)))) (pow (log1p N) 3.0))
(+ (pow (log N) 2.0) (- (pow (log1p N) 2.0) (* (log N) (log1p N)))))
(log (/ N (+ N 1.0))))
(log (/ 1.0 (* N (+ N 1.0))))))))
double code(double N) {
double t_0 = (0.08333333333333333 + (-0.041666666666666664 / N)) / N;
double tmp;
if ((log((N + 1.0)) - log(N)) <= 0.001) {
tmp = 1.0 / ((N * (-1.0 + (((-0.5 + t_0) / N) * ((t_0 - 0.5) / N)))) / (((0.5 - t_0) / N) + -1.0));
} else {
tmp = (((exp((3.0 * log(log(N)))) + pow(log1p(N), 3.0)) / (pow(log(N), 2.0) + (pow(log1p(N), 2.0) - (log(N) * log1p(N))))) * log((N / (N + 1.0)))) / log((1.0 / (N * (N + 1.0))));
}
return tmp;
}
public static double code(double N) {
double t_0 = (0.08333333333333333 + (-0.041666666666666664 / N)) / N;
double tmp;
if ((Math.log((N + 1.0)) - Math.log(N)) <= 0.001) {
tmp = 1.0 / ((N * (-1.0 + (((-0.5 + t_0) / N) * ((t_0 - 0.5) / N)))) / (((0.5 - t_0) / N) + -1.0));
} else {
tmp = (((Math.exp((3.0 * Math.log(Math.log(N)))) + Math.pow(Math.log1p(N), 3.0)) / (Math.pow(Math.log(N), 2.0) + (Math.pow(Math.log1p(N), 2.0) - (Math.log(N) * Math.log1p(N))))) * Math.log((N / (N + 1.0)))) / Math.log((1.0 / (N * (N + 1.0))));
}
return tmp;
}
def code(N): t_0 = (0.08333333333333333 + (-0.041666666666666664 / N)) / N tmp = 0 if (math.log((N + 1.0)) - math.log(N)) <= 0.001: tmp = 1.0 / ((N * (-1.0 + (((-0.5 + t_0) / N) * ((t_0 - 0.5) / N)))) / (((0.5 - t_0) / N) + -1.0)) else: tmp = (((math.exp((3.0 * math.log(math.log(N)))) + math.pow(math.log1p(N), 3.0)) / (math.pow(math.log(N), 2.0) + (math.pow(math.log1p(N), 2.0) - (math.log(N) * math.log1p(N))))) * math.log((N / (N + 1.0)))) / math.log((1.0 / (N * (N + 1.0)))) return tmp
function code(N) t_0 = Float64(Float64(0.08333333333333333 + Float64(-0.041666666666666664 / N)) / N) tmp = 0.0 if (Float64(log(Float64(N + 1.0)) - log(N)) <= 0.001) tmp = Float64(1.0 / Float64(Float64(N * Float64(-1.0 + Float64(Float64(Float64(-0.5 + t_0) / N) * Float64(Float64(t_0 - 0.5) / N)))) / Float64(Float64(Float64(0.5 - t_0) / N) + -1.0))); else tmp = Float64(Float64(Float64(Float64(exp(Float64(3.0 * log(log(N)))) + (log1p(N) ^ 3.0)) / Float64((log(N) ^ 2.0) + Float64((log1p(N) ^ 2.0) - Float64(log(N) * log1p(N))))) * log(Float64(N / Float64(N + 1.0)))) / log(Float64(1.0 / Float64(N * Float64(N + 1.0))))); end return tmp end
code[N_] := Block[{t$95$0 = N[(N[(0.08333333333333333 + N[(-0.041666666666666664 / N), $MachinePrecision]), $MachinePrecision] / N), $MachinePrecision]}, If[LessEqual[N[(N[Log[N[(N + 1.0), $MachinePrecision]], $MachinePrecision] - N[Log[N], $MachinePrecision]), $MachinePrecision], 0.001], N[(1.0 / N[(N[(N * N[(-1.0 + N[(N[(N[(-0.5 + t$95$0), $MachinePrecision] / N), $MachinePrecision] * N[(N[(t$95$0 - 0.5), $MachinePrecision] / N), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(N[(N[(0.5 - t$95$0), $MachinePrecision] / N), $MachinePrecision] + -1.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(N[(N[(N[Exp[N[(3.0 * N[Log[N[Log[N], $MachinePrecision]], $MachinePrecision]), $MachinePrecision]], $MachinePrecision] + N[Power[N[Log[1 + N], $MachinePrecision], 3.0], $MachinePrecision]), $MachinePrecision] / N[(N[Power[N[Log[N], $MachinePrecision], 2.0], $MachinePrecision] + N[(N[Power[N[Log[1 + N], $MachinePrecision], 2.0], $MachinePrecision] - N[(N[Log[N], $MachinePrecision] * N[Log[1 + N], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] * N[Log[N[(N / N[(N + 1.0), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision] / N[Log[N[(1.0 / N[(N * N[(N + 1.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \frac{0.08333333333333333 + \frac{-0.041666666666666664}{N}}{N}\\
\mathbf{if}\;\log \left(N + 1\right) - \log N \leq 0.001:\\
\;\;\;\;\frac{1}{\frac{N \cdot \left(-1 + \frac{-0.5 + t\_0}{N} \cdot \frac{t\_0 - 0.5}{N}\right)}{\frac{0.5 - t\_0}{N} + -1}}\\
\mathbf{else}:\\
\;\;\;\;\frac{\frac{e^{3 \cdot \log \log N} + {\left(\mathsf{log1p}\left(N\right)\right)}^{3}}{{\log N}^{2} + \left({\left(\mathsf{log1p}\left(N\right)\right)}^{2} - \log N \cdot \mathsf{log1p}\left(N\right)\right)} \cdot \log \left(\frac{N}{N + 1}\right)}{\log \left(\frac{1}{N \cdot \left(N + 1\right)}\right)}\\
\end{array}
\end{array}
if (-.f64 (log.f64 (+.f64 N #s(literal 1 binary64))) (log.f64 N)) < 1e-3Initial program 19.2%
--lowering--.f64N/A
+-commutativeN/A
accelerator-lowering-log1p.f64N/A
log-lowering-log.f6419.2%
Simplified19.2%
Taylor expanded in N around inf
Simplified99.7%
clear-numN/A
/-lowering-/.f64N/A
/-lowering-/.f64N/A
+-lowering-+.f64N/A
/-lowering-/.f64N/A
--lowering--.f64N/A
/-lowering-/.f64N/A
+-lowering-+.f64N/A
/-lowering-/.f6499.8%
Applied egg-rr99.8%
Taylor expanded in N around -inf
associate-*r*N/A
*-commutativeN/A
*-lowering-*.f64N/A
Simplified99.8%
sub0-negN/A
*-commutativeN/A
flip--N/A
associate-*r/N/A
/-lowering-/.f64N/A
Applied egg-rr99.8%
if 1e-3 < (-.f64 (log.f64 (+.f64 N #s(literal 1 binary64))) (log.f64 N)) Initial program 92.5%
--lowering--.f64N/A
+-commutativeN/A
accelerator-lowering-log1p.f64N/A
log-lowering-log.f6492.6%
Simplified92.6%
flip--N/A
frac-2negN/A
/-lowering-/.f64N/A
Applied egg-rr95.5%
log-prodN/A
flip3-+N/A
/-lowering-/.f64N/A
+-lowering-+.f64N/A
pow-lowering-pow.f64N/A
log-lowering-log.f64N/A
pow-lowering-pow.f64N/A
accelerator-lowering-log1p.f64N/A
+-lowering-+.f64N/A
pow2N/A
pow-lowering-pow.f64N/A
log-lowering-log.f64N/A
unpow2N/A
--lowering--.f64N/A
Applied egg-rr95.6%
pow-to-expN/A
exp-lowering-exp.f64N/A
*-commutativeN/A
*-lowering-*.f64N/A
log-lowering-log.f64N/A
log-lowering-log.f6495.7%
Applied egg-rr95.7%
Final simplification99.5%
(FPCore (N)
:precision binary64
(let* ((t_0 (/ (+ 0.08333333333333333 (/ -0.041666666666666664 N)) N))
(t_1 (* N (+ N 1.0))))
(if (<= (- (log (+ N 1.0)) (log N)) 0.001)
(/
1.0
(/
(* N (+ -1.0 (* (/ (+ -0.5 t_0) N) (/ (- t_0 0.5) N))))
(+ (/ (- 0.5 t_0) N) -1.0)))
(/ (/ (log (/ N (+ N 1.0))) (/ 1.0 (log t_1))) (log (/ 1.0 t_1))))))
double code(double N) {
double t_0 = (0.08333333333333333 + (-0.041666666666666664 / N)) / N;
double t_1 = N * (N + 1.0);
double tmp;
if ((log((N + 1.0)) - log(N)) <= 0.001) {
tmp = 1.0 / ((N * (-1.0 + (((-0.5 + t_0) / N) * ((t_0 - 0.5) / N)))) / (((0.5 - t_0) / N) + -1.0));
} else {
tmp = (log((N / (N + 1.0))) / (1.0 / log(t_1))) / log((1.0 / t_1));
}
return tmp;
}
real(8) function code(n)
real(8), intent (in) :: n
real(8) :: t_0
real(8) :: t_1
real(8) :: tmp
t_0 = (0.08333333333333333d0 + ((-0.041666666666666664d0) / n)) / n
t_1 = n * (n + 1.0d0)
if ((log((n + 1.0d0)) - log(n)) <= 0.001d0) then
tmp = 1.0d0 / ((n * ((-1.0d0) + ((((-0.5d0) + t_0) / n) * ((t_0 - 0.5d0) / n)))) / (((0.5d0 - t_0) / n) + (-1.0d0)))
else
tmp = (log((n / (n + 1.0d0))) / (1.0d0 / log(t_1))) / log((1.0d0 / t_1))
end if
code = tmp
end function
public static double code(double N) {
double t_0 = (0.08333333333333333 + (-0.041666666666666664 / N)) / N;
double t_1 = N * (N + 1.0);
double tmp;
if ((Math.log((N + 1.0)) - Math.log(N)) <= 0.001) {
tmp = 1.0 / ((N * (-1.0 + (((-0.5 + t_0) / N) * ((t_0 - 0.5) / N)))) / (((0.5 - t_0) / N) + -1.0));
} else {
tmp = (Math.log((N / (N + 1.0))) / (1.0 / Math.log(t_1))) / Math.log((1.0 / t_1));
}
return tmp;
}
def code(N): t_0 = (0.08333333333333333 + (-0.041666666666666664 / N)) / N t_1 = N * (N + 1.0) tmp = 0 if (math.log((N + 1.0)) - math.log(N)) <= 0.001: tmp = 1.0 / ((N * (-1.0 + (((-0.5 + t_0) / N) * ((t_0 - 0.5) / N)))) / (((0.5 - t_0) / N) + -1.0)) else: tmp = (math.log((N / (N + 1.0))) / (1.0 / math.log(t_1))) / math.log((1.0 / t_1)) return tmp
function code(N) t_0 = Float64(Float64(0.08333333333333333 + Float64(-0.041666666666666664 / N)) / N) t_1 = Float64(N * Float64(N + 1.0)) tmp = 0.0 if (Float64(log(Float64(N + 1.0)) - log(N)) <= 0.001) tmp = Float64(1.0 / Float64(Float64(N * Float64(-1.0 + Float64(Float64(Float64(-0.5 + t_0) / N) * Float64(Float64(t_0 - 0.5) / N)))) / Float64(Float64(Float64(0.5 - t_0) / N) + -1.0))); else tmp = Float64(Float64(log(Float64(N / Float64(N + 1.0))) / Float64(1.0 / log(t_1))) / log(Float64(1.0 / t_1))); end return tmp end
function tmp_2 = code(N) t_0 = (0.08333333333333333 + (-0.041666666666666664 / N)) / N; t_1 = N * (N + 1.0); tmp = 0.0; if ((log((N + 1.0)) - log(N)) <= 0.001) tmp = 1.0 / ((N * (-1.0 + (((-0.5 + t_0) / N) * ((t_0 - 0.5) / N)))) / (((0.5 - t_0) / N) + -1.0)); else tmp = (log((N / (N + 1.0))) / (1.0 / log(t_1))) / log((1.0 / t_1)); end tmp_2 = tmp; end
code[N_] := Block[{t$95$0 = N[(N[(0.08333333333333333 + N[(-0.041666666666666664 / N), $MachinePrecision]), $MachinePrecision] / N), $MachinePrecision]}, Block[{t$95$1 = N[(N * N[(N + 1.0), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[N[(N[Log[N[(N + 1.0), $MachinePrecision]], $MachinePrecision] - N[Log[N], $MachinePrecision]), $MachinePrecision], 0.001], N[(1.0 / N[(N[(N * N[(-1.0 + N[(N[(N[(-0.5 + t$95$0), $MachinePrecision] / N), $MachinePrecision] * N[(N[(t$95$0 - 0.5), $MachinePrecision] / N), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(N[(N[(0.5 - t$95$0), $MachinePrecision] / N), $MachinePrecision] + -1.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(N[Log[N[(N / N[(N + 1.0), $MachinePrecision]), $MachinePrecision]], $MachinePrecision] / N[(1.0 / N[Log[t$95$1], $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[Log[N[(1.0 / t$95$1), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]]]]
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \frac{0.08333333333333333 + \frac{-0.041666666666666664}{N}}{N}\\
t_1 := N \cdot \left(N + 1\right)\\
\mathbf{if}\;\log \left(N + 1\right) - \log N \leq 0.001:\\
\;\;\;\;\frac{1}{\frac{N \cdot \left(-1 + \frac{-0.5 + t\_0}{N} \cdot \frac{t\_0 - 0.5}{N}\right)}{\frac{0.5 - t\_0}{N} + -1}}\\
\mathbf{else}:\\
\;\;\;\;\frac{\frac{\log \left(\frac{N}{N + 1}\right)}{\frac{1}{\log t\_1}}}{\log \left(\frac{1}{t\_1}\right)}\\
\end{array}
\end{array}
if (-.f64 (log.f64 (+.f64 N #s(literal 1 binary64))) (log.f64 N)) < 1e-3Initial program 19.2%
--lowering--.f64N/A
+-commutativeN/A
accelerator-lowering-log1p.f64N/A
log-lowering-log.f6419.2%
Simplified19.2%
Taylor expanded in N around inf
Simplified99.7%
clear-numN/A
/-lowering-/.f64N/A
/-lowering-/.f64N/A
+-lowering-+.f64N/A
/-lowering-/.f64N/A
--lowering--.f64N/A
/-lowering-/.f64N/A
+-lowering-+.f64N/A
/-lowering-/.f6499.8%
Applied egg-rr99.8%
Taylor expanded in N around -inf
associate-*r*N/A
*-commutativeN/A
*-lowering-*.f64N/A
Simplified99.8%
sub0-negN/A
*-commutativeN/A
flip--N/A
associate-*r/N/A
/-lowering-/.f64N/A
Applied egg-rr99.8%
if 1e-3 < (-.f64 (log.f64 (+.f64 N #s(literal 1 binary64))) (log.f64 N)) Initial program 92.5%
--lowering--.f64N/A
+-commutativeN/A
accelerator-lowering-log1p.f64N/A
log-lowering-log.f6492.6%
Simplified92.6%
flip--N/A
frac-2negN/A
/-lowering-/.f64N/A
Applied egg-rr95.5%
log-prodN/A
flip3-+N/A
/-lowering-/.f64N/A
+-lowering-+.f64N/A
pow-lowering-pow.f64N/A
log-lowering-log.f64N/A
pow-lowering-pow.f64N/A
accelerator-lowering-log1p.f64N/A
+-lowering-+.f64N/A
pow2N/A
pow-lowering-pow.f64N/A
log-lowering-log.f64N/A
unpow2N/A
--lowering--.f64N/A
Applied egg-rr95.6%
*-commutativeN/A
frac-2negN/A
clear-numN/A
frac-2negN/A
clear-numN/A
Applied egg-rr95.6%
Final simplification99.5%
(FPCore (N)
:precision binary64
(let* ((t_0 (/ (+ 0.08333333333333333 (/ -0.041666666666666664 N)) N)))
(if (<= (- (log (+ N 1.0)) (log N)) 0.001)
(/
1.0
(/
(* N (+ -1.0 (* (/ (+ -0.5 t_0) N) (/ (- t_0 0.5) N))))
(+ (/ (- 0.5 t_0) N) -1.0)))
(- 0.0 (log (/ N (+ N 1.0)))))))
double code(double N) {
double t_0 = (0.08333333333333333 + (-0.041666666666666664 / N)) / N;
double tmp;
if ((log((N + 1.0)) - log(N)) <= 0.001) {
tmp = 1.0 / ((N * (-1.0 + (((-0.5 + t_0) / N) * ((t_0 - 0.5) / N)))) / (((0.5 - t_0) / N) + -1.0));
} else {
tmp = 0.0 - log((N / (N + 1.0)));
}
return tmp;
}
real(8) function code(n)
real(8), intent (in) :: n
real(8) :: t_0
real(8) :: tmp
t_0 = (0.08333333333333333d0 + ((-0.041666666666666664d0) / n)) / n
if ((log((n + 1.0d0)) - log(n)) <= 0.001d0) then
tmp = 1.0d0 / ((n * ((-1.0d0) + ((((-0.5d0) + t_0) / n) * ((t_0 - 0.5d0) / n)))) / (((0.5d0 - t_0) / n) + (-1.0d0)))
else
tmp = 0.0d0 - log((n / (n + 1.0d0)))
end if
code = tmp
end function
public static double code(double N) {
double t_0 = (0.08333333333333333 + (-0.041666666666666664 / N)) / N;
double tmp;
if ((Math.log((N + 1.0)) - Math.log(N)) <= 0.001) {
tmp = 1.0 / ((N * (-1.0 + (((-0.5 + t_0) / N) * ((t_0 - 0.5) / N)))) / (((0.5 - t_0) / N) + -1.0));
} else {
tmp = 0.0 - Math.log((N / (N + 1.0)));
}
return tmp;
}
def code(N): t_0 = (0.08333333333333333 + (-0.041666666666666664 / N)) / N tmp = 0 if (math.log((N + 1.0)) - math.log(N)) <= 0.001: tmp = 1.0 / ((N * (-1.0 + (((-0.5 + t_0) / N) * ((t_0 - 0.5) / N)))) / (((0.5 - t_0) / N) + -1.0)) else: tmp = 0.0 - math.log((N / (N + 1.0))) return tmp
function code(N) t_0 = Float64(Float64(0.08333333333333333 + Float64(-0.041666666666666664 / N)) / N) tmp = 0.0 if (Float64(log(Float64(N + 1.0)) - log(N)) <= 0.001) tmp = Float64(1.0 / Float64(Float64(N * Float64(-1.0 + Float64(Float64(Float64(-0.5 + t_0) / N) * Float64(Float64(t_0 - 0.5) / N)))) / Float64(Float64(Float64(0.5 - t_0) / N) + -1.0))); else tmp = Float64(0.0 - log(Float64(N / Float64(N + 1.0)))); end return tmp end
function tmp_2 = code(N) t_0 = (0.08333333333333333 + (-0.041666666666666664 / N)) / N; tmp = 0.0; if ((log((N + 1.0)) - log(N)) <= 0.001) tmp = 1.0 / ((N * (-1.0 + (((-0.5 + t_0) / N) * ((t_0 - 0.5) / N)))) / (((0.5 - t_0) / N) + -1.0)); else tmp = 0.0 - log((N / (N + 1.0))); end tmp_2 = tmp; end
code[N_] := Block[{t$95$0 = N[(N[(0.08333333333333333 + N[(-0.041666666666666664 / N), $MachinePrecision]), $MachinePrecision] / N), $MachinePrecision]}, If[LessEqual[N[(N[Log[N[(N + 1.0), $MachinePrecision]], $MachinePrecision] - N[Log[N], $MachinePrecision]), $MachinePrecision], 0.001], N[(1.0 / N[(N[(N * N[(-1.0 + N[(N[(N[(-0.5 + t$95$0), $MachinePrecision] / N), $MachinePrecision] * N[(N[(t$95$0 - 0.5), $MachinePrecision] / N), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(N[(N[(0.5 - t$95$0), $MachinePrecision] / N), $MachinePrecision] + -1.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(0.0 - N[Log[N[(N / N[(N + 1.0), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \frac{0.08333333333333333 + \frac{-0.041666666666666664}{N}}{N}\\
\mathbf{if}\;\log \left(N + 1\right) - \log N \leq 0.001:\\
\;\;\;\;\frac{1}{\frac{N \cdot \left(-1 + \frac{-0.5 + t\_0}{N} \cdot \frac{t\_0 - 0.5}{N}\right)}{\frac{0.5 - t\_0}{N} + -1}}\\
\mathbf{else}:\\
\;\;\;\;0 - \log \left(\frac{N}{N + 1}\right)\\
\end{array}
\end{array}
if (-.f64 (log.f64 (+.f64 N #s(literal 1 binary64))) (log.f64 N)) < 1e-3Initial program 19.2%
--lowering--.f64N/A
+-commutativeN/A
accelerator-lowering-log1p.f64N/A
log-lowering-log.f6419.2%
Simplified19.2%
Taylor expanded in N around inf
Simplified99.7%
clear-numN/A
/-lowering-/.f64N/A
/-lowering-/.f64N/A
+-lowering-+.f64N/A
/-lowering-/.f64N/A
--lowering--.f64N/A
/-lowering-/.f64N/A
+-lowering-+.f64N/A
/-lowering-/.f6499.8%
Applied egg-rr99.8%
Taylor expanded in N around -inf
associate-*r*N/A
*-commutativeN/A
*-lowering-*.f64N/A
Simplified99.8%
sub0-negN/A
*-commutativeN/A
flip--N/A
associate-*r/N/A
/-lowering-/.f64N/A
Applied egg-rr99.8%
if 1e-3 < (-.f64 (log.f64 (+.f64 N #s(literal 1 binary64))) (log.f64 N)) Initial program 92.5%
--lowering--.f64N/A
+-commutativeN/A
accelerator-lowering-log1p.f64N/A
log-lowering-log.f6492.6%
Simplified92.6%
diff-logN/A
clear-numN/A
neg-logN/A
diff-logN/A
neg-lowering-neg.f64N/A
diff-logN/A
log-lowering-log.f64N/A
/-lowering-/.f64N/A
+-lowering-+.f6495.5%
Applied egg-rr95.5%
Final simplification99.4%
(FPCore (N)
:precision binary64
(let* ((t_0 (/ (+ 0.08333333333333333 (/ -0.041666666666666664 N)) N)))
(if (<= N 880.0)
(log (/ (+ N 1.0) N))
(/
1.0
(/
(* N (+ -1.0 (* (/ (+ -0.5 t_0) N) (/ (- t_0 0.5) N))))
(+ (/ (- 0.5 t_0) N) -1.0))))))
double code(double N) {
double t_0 = (0.08333333333333333 + (-0.041666666666666664 / N)) / N;
double tmp;
if (N <= 880.0) {
tmp = log(((N + 1.0) / N));
} else {
tmp = 1.0 / ((N * (-1.0 + (((-0.5 + t_0) / N) * ((t_0 - 0.5) / N)))) / (((0.5 - t_0) / N) + -1.0));
}
return tmp;
}
real(8) function code(n)
real(8), intent (in) :: n
real(8) :: t_0
real(8) :: tmp
t_0 = (0.08333333333333333d0 + ((-0.041666666666666664d0) / n)) / n
if (n <= 880.0d0) then
tmp = log(((n + 1.0d0) / n))
else
tmp = 1.0d0 / ((n * ((-1.0d0) + ((((-0.5d0) + t_0) / n) * ((t_0 - 0.5d0) / n)))) / (((0.5d0 - t_0) / n) + (-1.0d0)))
end if
code = tmp
end function
public static double code(double N) {
double t_0 = (0.08333333333333333 + (-0.041666666666666664 / N)) / N;
double tmp;
if (N <= 880.0) {
tmp = Math.log(((N + 1.0) / N));
} else {
tmp = 1.0 / ((N * (-1.0 + (((-0.5 + t_0) / N) * ((t_0 - 0.5) / N)))) / (((0.5 - t_0) / N) + -1.0));
}
return tmp;
}
def code(N): t_0 = (0.08333333333333333 + (-0.041666666666666664 / N)) / N tmp = 0 if N <= 880.0: tmp = math.log(((N + 1.0) / N)) else: tmp = 1.0 / ((N * (-1.0 + (((-0.5 + t_0) / N) * ((t_0 - 0.5) / N)))) / (((0.5 - t_0) / N) + -1.0)) return tmp
function code(N) t_0 = Float64(Float64(0.08333333333333333 + Float64(-0.041666666666666664 / N)) / N) tmp = 0.0 if (N <= 880.0) tmp = log(Float64(Float64(N + 1.0) / N)); else tmp = Float64(1.0 / Float64(Float64(N * Float64(-1.0 + Float64(Float64(Float64(-0.5 + t_0) / N) * Float64(Float64(t_0 - 0.5) / N)))) / Float64(Float64(Float64(0.5 - t_0) / N) + -1.0))); end return tmp end
function tmp_2 = code(N) t_0 = (0.08333333333333333 + (-0.041666666666666664 / N)) / N; tmp = 0.0; if (N <= 880.0) tmp = log(((N + 1.0) / N)); else tmp = 1.0 / ((N * (-1.0 + (((-0.5 + t_0) / N) * ((t_0 - 0.5) / N)))) / (((0.5 - t_0) / N) + -1.0)); end tmp_2 = tmp; end
code[N_] := Block[{t$95$0 = N[(N[(0.08333333333333333 + N[(-0.041666666666666664 / N), $MachinePrecision]), $MachinePrecision] / N), $MachinePrecision]}, If[LessEqual[N, 880.0], N[Log[N[(N[(N + 1.0), $MachinePrecision] / N), $MachinePrecision]], $MachinePrecision], N[(1.0 / N[(N[(N * N[(-1.0 + N[(N[(N[(-0.5 + t$95$0), $MachinePrecision] / N), $MachinePrecision] * N[(N[(t$95$0 - 0.5), $MachinePrecision] / N), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(N[(N[(0.5 - t$95$0), $MachinePrecision] / N), $MachinePrecision] + -1.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \frac{0.08333333333333333 + \frac{-0.041666666666666664}{N}}{N}\\
\mathbf{if}\;N \leq 880:\\
\;\;\;\;\log \left(\frac{N + 1}{N}\right)\\
\mathbf{else}:\\
\;\;\;\;\frac{1}{\frac{N \cdot \left(-1 + \frac{-0.5 + t\_0}{N} \cdot \frac{t\_0 - 0.5}{N}\right)}{\frac{0.5 - t\_0}{N} + -1}}\\
\end{array}
\end{array}
if N < 880Initial program 92.8%
--lowering--.f64N/A
+-commutativeN/A
accelerator-lowering-log1p.f64N/A
log-lowering-log.f6492.9%
Simplified92.9%
diff-logN/A
log-lowering-log.f64N/A
/-lowering-/.f64N/A
+-lowering-+.f6494.9%
Applied egg-rr94.9%
if 880 < N Initial program 19.5%
--lowering--.f64N/A
+-commutativeN/A
accelerator-lowering-log1p.f64N/A
log-lowering-log.f6419.5%
Simplified19.5%
Taylor expanded in N around inf
Simplified99.7%
clear-numN/A
/-lowering-/.f64N/A
/-lowering-/.f64N/A
+-lowering-+.f64N/A
/-lowering-/.f64N/A
--lowering--.f64N/A
/-lowering-/.f64N/A
+-lowering-+.f64N/A
/-lowering-/.f6499.7%
Applied egg-rr99.7%
Taylor expanded in N around -inf
associate-*r*N/A
*-commutativeN/A
*-lowering-*.f64N/A
Simplified99.7%
sub0-negN/A
*-commutativeN/A
flip--N/A
associate-*r/N/A
/-lowering-/.f64N/A
Applied egg-rr99.8%
Final simplification99.4%
(FPCore (N)
:precision binary64
(let* ((t_0 (/ (+ 0.08333333333333333 (/ -0.041666666666666664 N)) N)))
(/
1.0
(/
(* N (+ -1.0 (* (/ (+ -0.5 t_0) N) (/ (- t_0 0.5) N))))
(+ (/ (- 0.5 t_0) N) -1.0)))))
double code(double N) {
double t_0 = (0.08333333333333333 + (-0.041666666666666664 / N)) / N;
return 1.0 / ((N * (-1.0 + (((-0.5 + t_0) / N) * ((t_0 - 0.5) / N)))) / (((0.5 - t_0) / N) + -1.0));
}
real(8) function code(n)
real(8), intent (in) :: n
real(8) :: t_0
t_0 = (0.08333333333333333d0 + ((-0.041666666666666664d0) / n)) / n
code = 1.0d0 / ((n * ((-1.0d0) + ((((-0.5d0) + t_0) / n) * ((t_0 - 0.5d0) / n)))) / (((0.5d0 - t_0) / n) + (-1.0d0)))
end function
public static double code(double N) {
double t_0 = (0.08333333333333333 + (-0.041666666666666664 / N)) / N;
return 1.0 / ((N * (-1.0 + (((-0.5 + t_0) / N) * ((t_0 - 0.5) / N)))) / (((0.5 - t_0) / N) + -1.0));
}
def code(N): t_0 = (0.08333333333333333 + (-0.041666666666666664 / N)) / N return 1.0 / ((N * (-1.0 + (((-0.5 + t_0) / N) * ((t_0 - 0.5) / N)))) / (((0.5 - t_0) / N) + -1.0))
function code(N) t_0 = Float64(Float64(0.08333333333333333 + Float64(-0.041666666666666664 / N)) / N) return Float64(1.0 / Float64(Float64(N * Float64(-1.0 + Float64(Float64(Float64(-0.5 + t_0) / N) * Float64(Float64(t_0 - 0.5) / N)))) / Float64(Float64(Float64(0.5 - t_0) / N) + -1.0))) end
function tmp = code(N) t_0 = (0.08333333333333333 + (-0.041666666666666664 / N)) / N; tmp = 1.0 / ((N * (-1.0 + (((-0.5 + t_0) / N) * ((t_0 - 0.5) / N)))) / (((0.5 - t_0) / N) + -1.0)); end
code[N_] := Block[{t$95$0 = N[(N[(0.08333333333333333 + N[(-0.041666666666666664 / N), $MachinePrecision]), $MachinePrecision] / N), $MachinePrecision]}, N[(1.0 / N[(N[(N * N[(-1.0 + N[(N[(N[(-0.5 + t$95$0), $MachinePrecision] / N), $MachinePrecision] * N[(N[(t$95$0 - 0.5), $MachinePrecision] / N), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(N[(N[(0.5 - t$95$0), $MachinePrecision] / N), $MachinePrecision] + -1.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \frac{0.08333333333333333 + \frac{-0.041666666666666664}{N}}{N}\\
\frac{1}{\frac{N \cdot \left(-1 + \frac{-0.5 + t\_0}{N} \cdot \frac{t\_0 - 0.5}{N}\right)}{\frac{0.5 - t\_0}{N} + -1}}
\end{array}
\end{array}
Initial program 25.8%
--lowering--.f64N/A
+-commutativeN/A
accelerator-lowering-log1p.f64N/A
log-lowering-log.f6425.8%
Simplified25.8%
Taylor expanded in N around inf
Simplified95.6%
clear-numN/A
/-lowering-/.f64N/A
/-lowering-/.f64N/A
+-lowering-+.f64N/A
/-lowering-/.f64N/A
--lowering--.f64N/A
/-lowering-/.f64N/A
+-lowering-+.f64N/A
/-lowering-/.f6495.6%
Applied egg-rr95.6%
Taylor expanded in N around -inf
associate-*r*N/A
*-commutativeN/A
*-lowering-*.f64N/A
Simplified96.1%
sub0-negN/A
*-commutativeN/A
flip--N/A
associate-*r/N/A
/-lowering-/.f64N/A
Applied egg-rr96.1%
Final simplification96.1%
(FPCore (N)
:precision binary64
(/
-1.0
(*
N
(+
(/ (+ -0.5 (/ (+ 0.08333333333333333 (/ -0.041666666666666664 N)) N)) N)
-1.0))))
double code(double N) {
return -1.0 / (N * (((-0.5 + ((0.08333333333333333 + (-0.041666666666666664 / N)) / N)) / N) + -1.0));
}
real(8) function code(n)
real(8), intent (in) :: n
code = (-1.0d0) / (n * ((((-0.5d0) + ((0.08333333333333333d0 + ((-0.041666666666666664d0) / n)) / n)) / n) + (-1.0d0)))
end function
public static double code(double N) {
return -1.0 / (N * (((-0.5 + ((0.08333333333333333 + (-0.041666666666666664 / N)) / N)) / N) + -1.0));
}
def code(N): return -1.0 / (N * (((-0.5 + ((0.08333333333333333 + (-0.041666666666666664 / N)) / N)) / N) + -1.0))
function code(N) return Float64(-1.0 / Float64(N * Float64(Float64(Float64(-0.5 + Float64(Float64(0.08333333333333333 + Float64(-0.041666666666666664 / N)) / N)) / N) + -1.0))) end
function tmp = code(N) tmp = -1.0 / (N * (((-0.5 + ((0.08333333333333333 + (-0.041666666666666664 / N)) / N)) / N) + -1.0)); end
code[N_] := N[(-1.0 / N[(N * N[(N[(N[(-0.5 + N[(N[(0.08333333333333333 + N[(-0.041666666666666664 / N), $MachinePrecision]), $MachinePrecision] / N), $MachinePrecision]), $MachinePrecision] / N), $MachinePrecision] + -1.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\frac{-1}{N \cdot \left(\frac{-0.5 + \frac{0.08333333333333333 + \frac{-0.041666666666666664}{N}}{N}}{N} + -1\right)}
\end{array}
Initial program 25.8%
--lowering--.f64N/A
+-commutativeN/A
accelerator-lowering-log1p.f64N/A
log-lowering-log.f6425.8%
Simplified25.8%
Taylor expanded in N around inf
Simplified95.6%
clear-numN/A
/-lowering-/.f64N/A
/-lowering-/.f64N/A
+-lowering-+.f64N/A
/-lowering-/.f64N/A
--lowering--.f64N/A
/-lowering-/.f64N/A
+-lowering-+.f64N/A
/-lowering-/.f6495.6%
Applied egg-rr95.6%
Taylor expanded in N around -inf
associate-*r*N/A
*-commutativeN/A
*-lowering-*.f64N/A
Simplified96.1%
sub0-negN/A
distribute-rgt-neg-outN/A
neg-lowering-neg.f64N/A
*-lowering-*.f64N/A
Applied egg-rr96.1%
Final simplification96.1%
(FPCore (N)
:precision binary64
(/
(/
-1.0
(+
(/ (+ -0.5 (/ (+ 0.08333333333333333 (/ -0.041666666666666664 N)) N)) N)
-1.0))
N))
double code(double N) {
return (-1.0 / (((-0.5 + ((0.08333333333333333 + (-0.041666666666666664 / N)) / N)) / N) + -1.0)) / N;
}
real(8) function code(n)
real(8), intent (in) :: n
code = ((-1.0d0) / ((((-0.5d0) + ((0.08333333333333333d0 + ((-0.041666666666666664d0) / n)) / n)) / n) + (-1.0d0))) / n
end function
public static double code(double N) {
return (-1.0 / (((-0.5 + ((0.08333333333333333 + (-0.041666666666666664 / N)) / N)) / N) + -1.0)) / N;
}
def code(N): return (-1.0 / (((-0.5 + ((0.08333333333333333 + (-0.041666666666666664 / N)) / N)) / N) + -1.0)) / N
function code(N) return Float64(Float64(-1.0 / Float64(Float64(Float64(-0.5 + Float64(Float64(0.08333333333333333 + Float64(-0.041666666666666664 / N)) / N)) / N) + -1.0)) / N) end
function tmp = code(N) tmp = (-1.0 / (((-0.5 + ((0.08333333333333333 + (-0.041666666666666664 / N)) / N)) / N) + -1.0)) / N; end
code[N_] := N[(N[(-1.0 / N[(N[(N[(-0.5 + N[(N[(0.08333333333333333 + N[(-0.041666666666666664 / N), $MachinePrecision]), $MachinePrecision] / N), $MachinePrecision]), $MachinePrecision] / N), $MachinePrecision] + -1.0), $MachinePrecision]), $MachinePrecision] / N), $MachinePrecision]
\begin{array}{l}
\\
\frac{\frac{-1}{\frac{-0.5 + \frac{0.08333333333333333 + \frac{-0.041666666666666664}{N}}{N}}{N} + -1}}{N}
\end{array}
Initial program 25.8%
--lowering--.f64N/A
+-commutativeN/A
accelerator-lowering-log1p.f64N/A
log-lowering-log.f6425.8%
Simplified25.8%
Taylor expanded in N around inf
Simplified95.6%
clear-numN/A
/-lowering-/.f64N/A
/-lowering-/.f64N/A
+-lowering-+.f64N/A
/-lowering-/.f64N/A
--lowering--.f64N/A
/-lowering-/.f64N/A
+-lowering-+.f64N/A
/-lowering-/.f6495.6%
Applied egg-rr95.6%
Taylor expanded in N around -inf
associate-*r*N/A
*-commutativeN/A
*-lowering-*.f64N/A
Simplified96.1%
sub0-negN/A
associate-/r*N/A
distribute-frac-neg2N/A
neg-lowering-neg.f64N/A
/-lowering-/.f64N/A
Applied egg-rr96.0%
Final simplification96.0%
(FPCore (N) :precision binary64 (/ 1.0 (/ (+ 0.041666666666666664 (* N (+ (* N (+ N 0.5)) -0.08333333333333333))) (* N N))))
double code(double N) {
return 1.0 / ((0.041666666666666664 + (N * ((N * (N + 0.5)) + -0.08333333333333333))) / (N * N));
}
real(8) function code(n)
real(8), intent (in) :: n
code = 1.0d0 / ((0.041666666666666664d0 + (n * ((n * (n + 0.5d0)) + (-0.08333333333333333d0)))) / (n * n))
end function
public static double code(double N) {
return 1.0 / ((0.041666666666666664 + (N * ((N * (N + 0.5)) + -0.08333333333333333))) / (N * N));
}
def code(N): return 1.0 / ((0.041666666666666664 + (N * ((N * (N + 0.5)) + -0.08333333333333333))) / (N * N))
function code(N) return Float64(1.0 / Float64(Float64(0.041666666666666664 + Float64(N * Float64(Float64(N * Float64(N + 0.5)) + -0.08333333333333333))) / Float64(N * N))) end
function tmp = code(N) tmp = 1.0 / ((0.041666666666666664 + (N * ((N * (N + 0.5)) + -0.08333333333333333))) / (N * N)); end
code[N_] := N[(1.0 / N[(N[(0.041666666666666664 + N[(N * N[(N[(N * N[(N + 0.5), $MachinePrecision]), $MachinePrecision] + -0.08333333333333333), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(N * N), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\frac{1}{\frac{0.041666666666666664 + N \cdot \left(N \cdot \left(N + 0.5\right) + -0.08333333333333333\right)}{N \cdot N}}
\end{array}
Initial program 25.8%
--lowering--.f64N/A
+-commutativeN/A
accelerator-lowering-log1p.f64N/A
log-lowering-log.f6425.8%
Simplified25.8%
Taylor expanded in N around inf
Simplified95.6%
clear-numN/A
/-lowering-/.f64N/A
/-lowering-/.f64N/A
+-lowering-+.f64N/A
/-lowering-/.f64N/A
--lowering--.f64N/A
/-lowering-/.f64N/A
+-lowering-+.f64N/A
/-lowering-/.f6495.6%
Applied egg-rr95.6%
Taylor expanded in N around -inf
associate-*r*N/A
*-commutativeN/A
*-lowering-*.f64N/A
Simplified96.1%
Taylor expanded in N around 0
/-lowering-/.f64N/A
+-lowering-+.f64N/A
*-lowering-*.f64N/A
sub-negN/A
metadata-evalN/A
+-lowering-+.f64N/A
*-lowering-*.f64N/A
+-commutativeN/A
+-lowering-+.f64N/A
unpow2N/A
*-lowering-*.f6495.9%
Simplified95.9%
(FPCore (N) :precision binary64 (/ 1.0 (/ N (+ 1.0 (/ (- -0.5 (/ (+ (/ 0.25 N) -0.3333333333333333) N)) N)))))
double code(double N) {
return 1.0 / (N / (1.0 + ((-0.5 - (((0.25 / N) + -0.3333333333333333) / N)) / N)));
}
real(8) function code(n)
real(8), intent (in) :: n
code = 1.0d0 / (n / (1.0d0 + (((-0.5d0) - (((0.25d0 / n) + (-0.3333333333333333d0)) / n)) / n)))
end function
public static double code(double N) {
return 1.0 / (N / (1.0 + ((-0.5 - (((0.25 / N) + -0.3333333333333333) / N)) / N)));
}
def code(N): return 1.0 / (N / (1.0 + ((-0.5 - (((0.25 / N) + -0.3333333333333333) / N)) / N)))
function code(N) return Float64(1.0 / Float64(N / Float64(1.0 + Float64(Float64(-0.5 - Float64(Float64(Float64(0.25 / N) + -0.3333333333333333) / N)) / N)))) end
function tmp = code(N) tmp = 1.0 / (N / (1.0 + ((-0.5 - (((0.25 / N) + -0.3333333333333333) / N)) / N))); end
code[N_] := N[(1.0 / N[(N / N[(1.0 + N[(N[(-0.5 - N[(N[(N[(0.25 / N), $MachinePrecision] + -0.3333333333333333), $MachinePrecision] / N), $MachinePrecision]), $MachinePrecision] / N), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\frac{1}{\frac{N}{1 + \frac{-0.5 - \frac{\frac{0.25}{N} + -0.3333333333333333}{N}}{N}}}
\end{array}
Initial program 25.8%
--lowering--.f64N/A
+-commutativeN/A
accelerator-lowering-log1p.f64N/A
log-lowering-log.f6425.8%
Simplified25.8%
Taylor expanded in N around inf
Simplified95.6%
clear-numN/A
/-lowering-/.f64N/A
/-lowering-/.f64N/A
+-lowering-+.f64N/A
/-lowering-/.f64N/A
--lowering--.f64N/A
/-lowering-/.f64N/A
+-lowering-+.f64N/A
/-lowering-/.f6495.6%
Applied egg-rr95.6%
(FPCore (N) :precision binary64 (/ (+ 1.0 (/ (- -0.5 (/ (+ (/ 0.25 N) -0.3333333333333333) N)) N)) N))
double code(double N) {
return (1.0 + ((-0.5 - (((0.25 / N) + -0.3333333333333333) / N)) / N)) / N;
}
real(8) function code(n)
real(8), intent (in) :: n
code = (1.0d0 + (((-0.5d0) - (((0.25d0 / n) + (-0.3333333333333333d0)) / n)) / n)) / n
end function
public static double code(double N) {
return (1.0 + ((-0.5 - (((0.25 / N) + -0.3333333333333333) / N)) / N)) / N;
}
def code(N): return (1.0 + ((-0.5 - (((0.25 / N) + -0.3333333333333333) / N)) / N)) / N
function code(N) return Float64(Float64(1.0 + Float64(Float64(-0.5 - Float64(Float64(Float64(0.25 / N) + -0.3333333333333333) / N)) / N)) / N) end
function tmp = code(N) tmp = (1.0 + ((-0.5 - (((0.25 / N) + -0.3333333333333333) / N)) / N)) / N; end
code[N_] := N[(N[(1.0 + N[(N[(-0.5 - N[(N[(N[(0.25 / N), $MachinePrecision] + -0.3333333333333333), $MachinePrecision] / N), $MachinePrecision]), $MachinePrecision] / N), $MachinePrecision]), $MachinePrecision] / N), $MachinePrecision]
\begin{array}{l}
\\
\frac{1 + \frac{-0.5 - \frac{\frac{0.25}{N} + -0.3333333333333333}{N}}{N}}{N}
\end{array}
Initial program 25.8%
--lowering--.f64N/A
+-commutativeN/A
accelerator-lowering-log1p.f64N/A
log-lowering-log.f6425.8%
Simplified25.8%
Taylor expanded in N around inf
Simplified95.6%
(FPCore (N) :precision binary64 (/ 1.0 (* N (+ 1.0 (/ (+ 0.5 (/ -0.08333333333333333 N)) N)))))
double code(double N) {
return 1.0 / (N * (1.0 + ((0.5 + (-0.08333333333333333 / N)) / N)));
}
real(8) function code(n)
real(8), intent (in) :: n
code = 1.0d0 / (n * (1.0d0 + ((0.5d0 + ((-0.08333333333333333d0) / n)) / n)))
end function
public static double code(double N) {
return 1.0 / (N * (1.0 + ((0.5 + (-0.08333333333333333 / N)) / N)));
}
def code(N): return 1.0 / (N * (1.0 + ((0.5 + (-0.08333333333333333 / N)) / N)))
function code(N) return Float64(1.0 / Float64(N * Float64(1.0 + Float64(Float64(0.5 + Float64(-0.08333333333333333 / N)) / N)))) end
function tmp = code(N) tmp = 1.0 / (N * (1.0 + ((0.5 + (-0.08333333333333333 / N)) / N))); end
code[N_] := N[(1.0 / N[(N * N[(1.0 + N[(N[(0.5 + N[(-0.08333333333333333 / N), $MachinePrecision]), $MachinePrecision] / N), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\frac{1}{N \cdot \left(1 + \frac{0.5 + \frac{-0.08333333333333333}{N}}{N}\right)}
\end{array}
Initial program 25.8%
--lowering--.f64N/A
+-commutativeN/A
accelerator-lowering-log1p.f64N/A
log-lowering-log.f6425.8%
Simplified25.8%
Taylor expanded in N around inf
Simplified95.6%
clear-numN/A
/-lowering-/.f64N/A
/-lowering-/.f64N/A
+-lowering-+.f64N/A
/-lowering-/.f64N/A
--lowering--.f64N/A
/-lowering-/.f64N/A
+-lowering-+.f64N/A
/-lowering-/.f6495.6%
Applied egg-rr95.6%
Taylor expanded in N around inf
*-lowering-*.f64N/A
associate--l+N/A
+-lowering-+.f64N/A
unpow2N/A
associate-/r*N/A
metadata-evalN/A
associate-*r/N/A
associate-*r/N/A
metadata-evalN/A
div-subN/A
/-lowering-/.f64N/A
sub-negN/A
+-lowering-+.f64N/A
associate-*r/N/A
metadata-evalN/A
distribute-neg-fracN/A
/-lowering-/.f64N/A
metadata-eval94.6%
Simplified94.6%
(FPCore (N) :precision binary64 (/ (+ 1.0 (/ (+ -0.5 (/ 0.3333333333333333 N)) N)) N))
double code(double N) {
return (1.0 + ((-0.5 + (0.3333333333333333 / N)) / N)) / N;
}
real(8) function code(n)
real(8), intent (in) :: n
code = (1.0d0 + (((-0.5d0) + (0.3333333333333333d0 / n)) / n)) / n
end function
public static double code(double N) {
return (1.0 + ((-0.5 + (0.3333333333333333 / N)) / N)) / N;
}
def code(N): return (1.0 + ((-0.5 + (0.3333333333333333 / N)) / N)) / N
function code(N) return Float64(Float64(1.0 + Float64(Float64(-0.5 + Float64(0.3333333333333333 / N)) / N)) / N) end
function tmp = code(N) tmp = (1.0 + ((-0.5 + (0.3333333333333333 / N)) / N)) / N; end
code[N_] := N[(N[(1.0 + N[(N[(-0.5 + N[(0.3333333333333333 / N), $MachinePrecision]), $MachinePrecision] / N), $MachinePrecision]), $MachinePrecision] / N), $MachinePrecision]
\begin{array}{l}
\\
\frac{1 + \frac{-0.5 + \frac{0.3333333333333333}{N}}{N}}{N}
\end{array}
Initial program 25.8%
--lowering--.f64N/A
+-commutativeN/A
accelerator-lowering-log1p.f64N/A
log-lowering-log.f6425.8%
Simplified25.8%
Taylor expanded in N around inf
/-lowering-/.f64N/A
Simplified93.9%
(FPCore (N) :precision binary64 (/ 1.0 (+ N 0.5)))
double code(double N) {
return 1.0 / (N + 0.5);
}
real(8) function code(n)
real(8), intent (in) :: n
code = 1.0d0 / (n + 0.5d0)
end function
public static double code(double N) {
return 1.0 / (N + 0.5);
}
def code(N): return 1.0 / (N + 0.5)
function code(N) return Float64(1.0 / Float64(N + 0.5)) end
function tmp = code(N) tmp = 1.0 / (N + 0.5); end
code[N_] := N[(1.0 / N[(N + 0.5), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\frac{1}{N + 0.5}
\end{array}
Initial program 25.8%
--lowering--.f64N/A
+-commutativeN/A
accelerator-lowering-log1p.f64N/A
log-lowering-log.f6425.8%
Simplified25.8%
Taylor expanded in N around inf
Simplified95.6%
clear-numN/A
/-lowering-/.f64N/A
/-lowering-/.f64N/A
+-lowering-+.f64N/A
/-lowering-/.f64N/A
--lowering--.f64N/A
/-lowering-/.f64N/A
+-lowering-+.f64N/A
/-lowering-/.f6495.6%
Applied egg-rr95.6%
Taylor expanded in N around inf
distribute-rgt-inN/A
*-lft-identityN/A
associate-*l*N/A
lft-mult-inverseN/A
metadata-evalN/A
+-lowering-+.f6491.8%
Simplified91.8%
(FPCore (N) :precision binary64 (/ 1.0 N))
double code(double N) {
return 1.0 / N;
}
real(8) function code(n)
real(8), intent (in) :: n
code = 1.0d0 / n
end function
public static double code(double N) {
return 1.0 / N;
}
def code(N): return 1.0 / N
function code(N) return Float64(1.0 / N) end
function tmp = code(N) tmp = 1.0 / N; end
code[N_] := N[(1.0 / N), $MachinePrecision]
\begin{array}{l}
\\
\frac{1}{N}
\end{array}
Initial program 25.8%
--lowering--.f64N/A
+-commutativeN/A
accelerator-lowering-log1p.f64N/A
log-lowering-log.f6425.8%
Simplified25.8%
Taylor expanded in N around inf
/-lowering-/.f6482.9%
Simplified82.9%
(FPCore (N) :precision binary64 2.0)
double code(double N) {
return 2.0;
}
real(8) function code(n)
real(8), intent (in) :: n
code = 2.0d0
end function
public static double code(double N) {
return 2.0;
}
def code(N): return 2.0
function code(N) return 2.0 end
function tmp = code(N) tmp = 2.0; end
code[N_] := 2.0
\begin{array}{l}
\\
2
\end{array}
Initial program 25.8%
--lowering--.f64N/A
+-commutativeN/A
accelerator-lowering-log1p.f64N/A
log-lowering-log.f6425.8%
Simplified25.8%
Taylor expanded in N around inf
Simplified95.6%
clear-numN/A
/-lowering-/.f64N/A
/-lowering-/.f64N/A
+-lowering-+.f64N/A
/-lowering-/.f64N/A
--lowering--.f64N/A
/-lowering-/.f64N/A
+-lowering-+.f64N/A
/-lowering-/.f6495.6%
Applied egg-rr95.6%
Taylor expanded in N around inf
distribute-rgt-inN/A
*-lft-identityN/A
associate-*l*N/A
lft-mult-inverseN/A
metadata-evalN/A
+-lowering-+.f6491.8%
Simplified91.8%
Taylor expanded in N around 0
Simplified10.0%
(FPCore (N) :precision binary64 (log1p (/ 1.0 N)))
double code(double N) {
return log1p((1.0 / N));
}
public static double code(double N) {
return Math.log1p((1.0 / N));
}
def code(N): return math.log1p((1.0 / N))
function code(N) return log1p(Float64(1.0 / N)) end
code[N_] := N[Log[1 + N[(1.0 / N), $MachinePrecision]], $MachinePrecision]
\begin{array}{l}
\\
\mathsf{log1p}\left(\frac{1}{N}\right)
\end{array}
(FPCore (N) :precision binary64 (log (+ 1.0 (/ 1.0 N))))
double code(double N) {
return log((1.0 + (1.0 / N)));
}
real(8) function code(n)
real(8), intent (in) :: n
code = log((1.0d0 + (1.0d0 / n)))
end function
public static double code(double N) {
return Math.log((1.0 + (1.0 / N)));
}
def code(N): return math.log((1.0 + (1.0 / N)))
function code(N) return log(Float64(1.0 + Float64(1.0 / N))) end
function tmp = code(N) tmp = log((1.0 + (1.0 / N))); end
code[N_] := N[Log[N[(1.0 + N[(1.0 / N), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]
\begin{array}{l}
\\
\log \left(1 + \frac{1}{N}\right)
\end{array}
(FPCore (N) :precision binary64 (+ (+ (+ (/ 1.0 N) (/ -1.0 (* 2.0 (pow N 2.0)))) (/ 1.0 (* 3.0 (pow N 3.0)))) (/ -1.0 (* 4.0 (pow N 4.0)))))
double code(double N) {
return (((1.0 / N) + (-1.0 / (2.0 * pow(N, 2.0)))) + (1.0 / (3.0 * pow(N, 3.0)))) + (-1.0 / (4.0 * pow(N, 4.0)));
}
real(8) function code(n)
real(8), intent (in) :: n
code = (((1.0d0 / n) + ((-1.0d0) / (2.0d0 * (n ** 2.0d0)))) + (1.0d0 / (3.0d0 * (n ** 3.0d0)))) + ((-1.0d0) / (4.0d0 * (n ** 4.0d0)))
end function
public static double code(double N) {
return (((1.0 / N) + (-1.0 / (2.0 * Math.pow(N, 2.0)))) + (1.0 / (3.0 * Math.pow(N, 3.0)))) + (-1.0 / (4.0 * Math.pow(N, 4.0)));
}
def code(N): return (((1.0 / N) + (-1.0 / (2.0 * math.pow(N, 2.0)))) + (1.0 / (3.0 * math.pow(N, 3.0)))) + (-1.0 / (4.0 * math.pow(N, 4.0)))
function code(N) return Float64(Float64(Float64(Float64(1.0 / N) + Float64(-1.0 / Float64(2.0 * (N ^ 2.0)))) + Float64(1.0 / Float64(3.0 * (N ^ 3.0)))) + Float64(-1.0 / Float64(4.0 * (N ^ 4.0)))) end
function tmp = code(N) tmp = (((1.0 / N) + (-1.0 / (2.0 * (N ^ 2.0)))) + (1.0 / (3.0 * (N ^ 3.0)))) + (-1.0 / (4.0 * (N ^ 4.0))); end
code[N_] := N[(N[(N[(N[(1.0 / N), $MachinePrecision] + N[(-1.0 / N[(2.0 * N[Power[N, 2.0], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[(1.0 / N[(3.0 * N[Power[N, 3.0], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[(-1.0 / N[(4.0 * N[Power[N, 4.0], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\left(\left(\frac{1}{N} + \frac{-1}{2 \cdot {N}^{2}}\right) + \frac{1}{3 \cdot {N}^{3}}\right) + \frac{-1}{4 \cdot {N}^{4}}
\end{array}
herbie shell --seed 2024191
(FPCore (N)
:name "2log (problem 3.3.6)"
:precision binary64
:pre (and (> N 1.0) (< N 1e+40))
:alt
(! :herbie-platform default (log1p (/ 1 N)))
:alt
(! :herbie-platform default (log (+ 1 (/ 1 N))))
:alt
(! :herbie-platform default (+ (/ 1 N) (/ -1 (* 2 (pow N 2))) (/ 1 (* 3 (pow N 3))) (/ -1 (* 4 (pow N 4)))))
(- (log (+ N 1.0)) (log N)))