Description Usage Arguments Details

Calculates the angle of a vector with respect to the vector (1,0).

1 | ```
mu2theta2(mu)
``` |

`mu` |
a vector of length 2 or a N x 2 matrix of means in two dimensions |

Returns the angle needed to rotate (1,0) counterclockwise to match the input vector. atan(y/x) + 0 if x >= 0 and y >= 0 (Q1) pi if x < 0 and y > 0 (Q2) pi if x < 0 and y <= 0 (Q3) 2pi if x >= 0 and y < 0 (Q4)

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