The automatic evalf logic in Function only calls evalf if every
argument is a float. It wasn't really designed for functions like
besselj where one argument is supposed to be an integer. It should
probably be updated to also automatically evalf if one argument is a
float and the rest are integers.
I wonder if anyone here can explain why some mathematical functions -
e.g. sin and gamma evaluate completely if given a floating point
argument, while others such as besselj(0,0.2) only evaluate completely
if .evalf() is used.
Is this behaviour intentional?
Best Wishes,
David
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On Sat, 17 Jun 2023 at 03:42, Melis Gezer wrote:
>
> Is there any function to obtain an explicit formula of coefficients for
> generating functions?
>
> It should give, for example, (1/(n+1))C(2n,n) if I gave the generating
> function of Catalan numbers.
I don't understand exactly what you are
