Symbolic Sum of Gamma Function with Negative Integer Values
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I'm trying to define a number of functions with multiple indices, one of which is used to sum factorial terms that may contain negative values. So I replaced the factorial with the gamma function, but now cannot evaluate the resulting sum due to the singularity. These terms should be zero in my functions, here is a simplified example:
syms q k
fun(q) = gamma(-2*q)
fun2(k) = symsum(k/fun(q),q,0,2)
I need this to produce a function so I can then numerically integrate it. Thanks in advance for your help.
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Walter Roberson
el 7 de En. de 2013
To check: when you have a factorial of a negative value, you wish the result to be 0? If so that would not be standard for factorial.
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