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Numerical Integration of Simple but Difficult Integral
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| #learned from complex analysis class that the known way of integrating 1/(1+x^2) is by applying the resideue theorem | |
| import scipy.integrate as i | |
| import numpy as np | |
| f = lambda x: 1.0/(1+x**2) | |
| print(str(i.quad(f,0,np.inf)[0])) |
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