subject:"\[sage\-support\] psi function."

Re: [sage-support] psi function.

2011-07-12 Thread Michael Orlitzky

On 07/12/2011 06:11 PM, robin hankin wrote: > Hi. > > > The psi function is defined over the entire complex plane. > > But sage doesn't seem to know anything about its properties. > > For example, I happen to know that psi(1-z) == pi/tan(pi*z) + psi(z) > > So I would expect the following sage

[sage-support] psi function.

2011-07-12 Thread robin hankin

Hi. The psi function is defined over the entire complex plane. But sage doesn't seem to know anything about its properties. For example, I happen to know that psi(1-z) == pi/tan(pi*z) + psi(z) So I would expect the following sage command: sage: (psi(1-z)- psi(z)-pi/tan(pi*z)).full_simplify()