nvector._core.R_EL2n_E¶

nvector._core.R_EL2n_E(R_EL)[source][source]¶

Returns n-vector from the rotation matrix R_EL.

Parameters:

R_EL: 3 x 3 array

Rotation matrix (direction cosine matrix) [no unit]

Returns:

n_E: 3 x 1 array

n-vector [no unit] decomposed in E.