compute_t1

sknano.core.structures.compute_t1(*Ch)

Compute \(t_1 = \frac{2m + n}{d_R}\)

where \(d_R = \gcd{(2n + m, 2m + n)}\).

The component of the translation vector \(\mathbf{T}\) along \(\mathbf{a}_1\):

\[\mathbf{T} = t_1\mathbf{a}_{1} + t_2\mathbf{a}_2\]

Parameters:*Ch –

Either a 2-tuple of ints or 2 integers giving the chiral indices of the nanotube chiral vector \(\mathbf{C}_h = n\mathbf{a}_1 + m\mathbf{a}_2 = (n, m)\).

Returns:\(t_1\) Return type:int