Help on Sympy HyperGeometric functions

[D.V.S Phanindra]

Hi,
 I am using the hyp2f1() function in the mpmath library. I tried to plot the example (No:3) given in the link: http://reference.wolfram.com/language/ref/Hypergeometric2F1.html. But the values generated by sympy's hyp2f1() function are different than the ones given in the example. I tried using the hyper() function which is generalized hypergeometric function with p=2 and q=1 but the result is the same. I need to use hypergeometric functions (with p=3 and q=2) in one of the codes that I am writing but this basic example is not working for me. Can anybody point out the mistake that I made. Thank you.

from sympy.mpmath import hyp2f1
from matplotlib import pyplot as plt

a=mp.linspace(-1,1,100)
y=[]
for i in a:
    y.append(hyp2f1(1.0/3.0,1.0/3.0,2.0/3.0,i))
plt.plot(a,y)
plt.grid()

[Kalevi Suominen]

> But the values generated by sympy's hyp2f1() function are different than the ones given in the example.

Can you explain in more detail in which way the values are different?