Re: PARI stable release 2.3.5 (for real now)

[Bill Allombert <Bill.Allombert@math.u-bordeaux1.fr>]

On Wed, Feb 03, 2010 at 12:14:57AM -0800, Ilya Zakharevich wrote:
>   *) intnum() is still borken (same as in 3.0):
> 
>     ? intnum(Z=[0,-1/2],[[1],-3/2],1/sqrt(Z)*(1+Z)^(-3/2))
>     %1 = 7.150393303262919781690330041 + 1018.215229301285883563073358 I
> 
>      (I presume this is integral from 0 to infinity...)

You need to split the integral:

? intnum(Z=[0,-1/2],1,1/sqrt(Z)*(1+Z)^(-3/2))+intnum(Z=1,[[1],-3/2],1/sqrt(Z)*(1+Z)^(-3/2))
%36 = 2.000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000

This belongs to a class of problem inherent to the method. 

Bill.