Ilya Zakharevich on Sun, 07 Feb 2010 03:32:17 +0100 |
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Re: PARI stable release 2.3.5 (for real now) |
On Fri, Feb 05, 2010 at 11:50:05AM +0100, Bill Allombert wrote: > 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: I know that this works around the bug. > ? 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. Then it should split automatically. Yours, Ilya