numpy - plotting multiple plots but whith offset ranges python -


i plot function of e , nu e eccentricity , nu true anomaly. looking @ elliptical orbits 0<e<1. however, when try plot them against each other, have shape error.

valueerror: operands not broadcast shapes (10) (5000)

i know because want 10 spaces eccentricity there way around this?

import numpy np  e = np.arange(0, 1, 0.1)  vvals = [[] in range(len(e))] nu = np.linspace(0, 2 * np.pi, 5000)   in e:     j in nu:         = float(i)         j = float(j)         v = np.sqrt(e ** 2 + 2 * e * np.cos(nu) + 1)         = int(i)         vvals[i].append(v)   in e:     pylab.plot(nu, vvals[i])   pylab.show()

i think trying do:

import numpy np  e = np.arange(0, 1, 0.1) vvals = [] nu = np.linspace(0, 2 * np.pi, 5000) in e:     v = np.sqrt(i ** 2 + 2 * * np.cos(nu) + 1)     vvals.append(v)  v in vvals:     pylab.plot(nu, v)  pylab.show()

numpy broadcasting friend ;)

if want fancy:

import numpy np  e = np.arange(0, 1, 0.1).reshape(-1, 1) nu = np.linspace(0, 2 * np.pi, 5000).reshape(1, -1) vvals = np.sqrt((e ** 2) * np.ones(nu.shape) + 2 * e * np.cos(nu) + 1)  v, _e in zip(vvals, e.ravel()):     pylab.plot(nu.ravel(), v, label=str(_e))  pylab.legend()      pylab.show()

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