matrix_3x3_to_voigt

emmet.core.math.matrix_3x3_to_voigt(matrix)

Convert a 3x3 symmetric matrix to its Voigt vector representation.

Return type:

list[float]

Parameters:

matrix (tuple[tuple[float, float, float], tuple[float, float, float], tuple[float, float, float]])

Parameters

matrix : Matrix3D

Returns

list of float