Re: [GiNaC-list] simple patch for Li_evalf

Hi, On Thu, Sep 23, 2004 at 11:27:09AM +0400, Sheplyakov Alexei wrote:

gives

Li(5,exp((1/3*I)*Pi)) = Li(5,exp((1/3*I)*Pi))

instead of expected

Li(5,exp((1/3*I)*Pi)) = 0.48005914589970829926+0.89203268884598503196*I

Attached patch seems to solve the problem.

GiNaC functions do only return floating point numbers, if their arguments already contain floating point numbers. So actually in the example above everything is as expected. If you want a floating point result, you either have to call evalf() explicitly or write something like ...(1/3.0*I)*... Regards, Jens