skxray.core.d_to_q¶

skxray.core.d_to_q(d)¶

Helper function to convert \(d\) to \(q\). The point of this function is to prevent fat-fingered typos.

By definition the relationship is:

..math

d = \frac{2 \pi}{q}

Parameters:	d : array An array of d (plane) spacing
Returns:	q : array An array of q values