Displaying 1 result from an estimated 1 matches for "gsl_sf_choose".
2005 May 05
2
Precision in R
Could anyone help me with the following issue.
Using the GSL library in R I define the following code:
#########
library(gsl);
S<-function(n)
{ r<-0:n;
ans<-sum(gsl_sf_choose(n,r)*(-1)^r*2^(2*r)*gamma_inc(6-2*r,2))
ans }
#########
>SS(10) yields 34.91868
>SS(40) yields 5.340422
>SS(60) yields 180.3162
Doing the same computations in maple I get
34.918679360927169740821310620770402166885975646756
5.340473872869891061658721253647686930049562214921
2.226921...