Hello. Trying to execute the following minimal example throws SymPy
into an infinite loop. (Obviously this is an extract from my actual
program.) I tried debugging using eric5 but beyond that the problem
occurs within the Ra() function, I couldn't find out anything. Can
please anyone tell me what I am doing wrong?
from sympy import symbols,summation,binomial,Function
i,n,j=symbols('i n j', integer=True)
t=symbols('t',real=True)
ival=Function('ival')
def Ra(i) : return
summation((-1)**(i+j)*binomial(i,j)*binomial(n,i)*ival(j),(j,0,i))
print(summation(t**i*Ra(i),(i,0,5)))
Thanks!
--
Shriramana Sharma
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