Floating point error when calculating angle?

[Jaime R.]

Code:

import numpy as np
import vg
vec1 = np.array((1, 3, 3))
vec2 = np.array((1, 3, 3))
print(vg.angle(vec1, vec2))

Expected result: 0, right?

[Paul Melnikow]

Hi, thanks for the question.

>>> import numpy as np
>>> import vg
>>> vec1 = np.array((1, 3, 3))
>>> vec2 = np.array((1, 3, 3))
>>> print(vg.angle(vec1, vec2))
1.2074182697257333e-06

That's 0.0000012 degrees which in floating-point land is pretty close to zero. What are you expecting?

[Jaime R.]

I expected to get a 0, but nevermind, I will round the result.