Created
November 15, 2014 13:02
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easy way to get a unit vector
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| def unit(v): | |
| mag = sqrt(v[0]*v[0]+v[1]*v[1]) | |
| return (v[0]/mag, v[1]/mag) | |
| VF = plot_vector_field(unit([-y,-x]),[x,-2,2],[y,-2,2]) |
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