how to use pyplot.arrow or patches.Arrow in matplotlib?

Question

If I wanted to draw arrows instead of axis lines using one of the arrow/Arrow functions, how do I get the line/arrowhead to show up? Example below:

import matplo         


        

Answer 1

plt.arrow(0,0,0,1, shape='full', lw=3, length_includes_head=True, head_width=.01)