The sinc function in mpmath meets most of my needs.  I inspected the
source code for sympy.sin but the algorithm for determining the
approximations of sin(X) escaped my attention.

I am still having trouble find examples of moving between polynomials
and their coefficient arrays.

Cheers

Scott

On Jun 2, 4:37 pm, Scott <[email protected]> wrote:
> I submitted the  issue for the cot(0)=0
>
> In [41]: (x/sin(x)).series(x, 0, 8)
> Out[41]: 1 + x**2/6 + 7*x**4/360 + 31*x**6/15120 + O(x**7)
>
> How do I take the output from series extract the coefficient and use
> it via poly1d ala taylor in mpmath?
>
> Knowing that sin( x)/x= sinc(c) was a great tip.
>
> Thanks
>
> Scott

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