radtools.Cell.reciprocal#
- radtools.Cell.reciprocal(cell)[source]#
Computes reciprocal cell.
Added in version 0.7.
- Parameters:
- cell(3, 3) array-like
Cell matrix, rows are interpreted as vectors.
- Returns:
- reciprocal_cell(3, 3) numpy.ndarray
Reciprocal cell matrix, rows are interpreted as vectors. \(cell = (\vec{v}_1, \vec{v}_2, \vec{v}_3)\), where
\[\begin{split}\begin{matrix} \vec{b}_1 = \dfrac{2\pi}{V}\vec{a}_2\times\vec{a}_3 \\ \vec{b}_2 = \dfrac{2\pi}{V}\vec{a}_3\times\vec{a}_1 \\ \vec{b}_3 = \dfrac{2\pi}{V}\vec{a}_1\times\vec{a}_2 \\ \end{matrix}\end{split}\]