If you are interested in numeric evaluation, sympy also includes
mpmath which does include sinc.
>>> sympy.mpmath.sinc(0)
mpf('1.0')
This shouldn't be necessary once sympy gets sinc itself since it will
use mpmath transparently for numeric calculations.
Ted
On 2010-06-02, at 15:37, Scott 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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