Gamma function: Difference between revisions
Content added Content deleted
(add lambdatalk code) |
Saraohohoh (talk | contribs) (→{{header|R}}: Issue found in previous R implementation step using 'seq.int' function: imaginary parts discarded in coercion; The edit resolved the issue and retain the imaginary part to make sure the precision. The edited lanczos(z) was benchmarked with gammaz(z) and complex_gamma(z) from 'pracma' and 'hypergeo' libraries to cross validate the solution accuracy) |
||
| Line 3,911: | Line 3,911: | ||
{ |
{ |
||
z <- z - 1 |
z <- z - 1 |
||
x <- p[1] |
x <- p[1] |
||
for (i in 1:8) { |
|||
x <- x+p[i+1]/(z+i) |
|||
} |
|||
tt <- z + g + 0.5 |
tt <- z + g + 0.5 |
||
sqrt(2*pi) * tt^(z+0.5) * exp(-tt) * x |
sqrt(2*pi) * tt^(z+0.5) * exp(-tt) * x |
||