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  • (cur | prev) 01:10, 5 January 2017Tom (talk | contribs). . (878 bytes) (+878). . (<pre>#!/usr/bin/python import numpy as np import matplotlib.pyplot as plt from mpmath import * from pylab import rcParams rcParams['figure.figsize'] = 2.4,2.4 x1=np.arange(-20,20,0.01) f=np.vectorize(lambda x: besselj(1,x)/x) y1=f(x1) xvert=np.arange...)