get_chiral_indices_from_str¶

sknano.core.structures.get_chiral_indices_from_str(Ch)[source] [edit on github][source]¶

Return the chiral indicies n and m.

Parameters:	Ch (str) – string of the form ‘NNMM’ or “(n, m)”. Extra spaces are acceptable.
Returns:	2-tuple of chiral indices `n` and `m`
Return type:	sequence