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How can I add arrows at the end of sage plot axis?

Hello everybody!

I have my plot:

import matplotlib.pyplot as plt
plt.clf()
fig = plt.figure()
plot(f(x), (0, 2*pi)).matplotlib(figure = fig)
plt.savefig('')
plt.close()


I want to add arrows at the end of this graph (as on http://commons.wikimedia.org/wiki/File:Conic_x%5E2%2B2xy%2By%5E2%E2%88%928x%3D0.svg). But I can't do this. Help me please.

 2 No.2 Revision tmonteil 25893 ●30 ●186 ●481 http://wiki.sagemath.o...

How can I add arrows at the end of sage plot axis?

Hello everybody!

I have my plot:

import matplotlib.pyplot as plt
plt.clf()
fig = plt.figure()
plot(f(x), (0, 2*pi)).matplotlib(figure = fig)
plt.savefig('')
plt.close()


I want to add arrows at the end of this graph (as on http://commons.wikimedia.org/wiki/File:Conic_x%5E2%2B2xy%2By%5E2%E2%88%928x%3D0.svg). this image). But I can't do this. Help me please.