compute_Ch¶
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sknano.core.structures.
compute_Ch
(*Ch, bond=None, **kwargs)[source] [edit on github][source]¶ Compute nanotube circumference |Ch| in Å.
|Ch|=a√n2+m2+nm=√3aCC√n2+m2+nmParameters: - *Ch –
Either a 2-tuple of ints or 2 integers giving the chiral indices of the nanotube chiral vector Ch=na1+ma2=(n,m).
- bond (float, optional) – Distance between nearest neighbor atoms (i.e., bond length). Must be in units of Å. Default value is the carbon-carbon bond length in graphite, approximately aCC=1.42 Å
Returns: Nanotube circumference |Ch| in Å.
Return type: - *Ch –