On Saturday, December 24, 2016 at 9:57:30 PM UTC+1, saad khalid wrote: > > First, most of the functions in the other.py and special.py folder include > code for their derivatives. However, I honestly have no idea about the > derivative of the qgamma function, and I could not find any literature > about it. > I found http://dx.doi.org/10.1016/j.aml.2010.06.010 with Google.
Is it possible to have the function without defining its derivative? > For example, floor (in other.py) has no such member function and does: sage: diff(floor(x),x) diff(floor(x), x) Also, what exactly is the difference between eval and evalf? Is eval for > symbolic computation while evalf is for numeric or something? > Yes. > Or is eval simply tried before evalf is? > evalf is called if you say ex.n() for some expression ex. -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-devel@googlegroups.com. Visit this group at https://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/d/optout.
