We ask users to provide proof(s), reference(s) to proof(s), or further clarification on the proof(s) in this space.
-ultraspherical/Rogers polynomial : http://dlmf.nist.gov/18.28#E13
: the base of the natural logarithm : http://dlmf.nist.gov/4.2.E11
: imaginary unit : http://dlmf.nist.gov/1.9.i
: cosine function : http://dlmf.nist.gov/4.14#E2
We ask users to provide relevant URL links in this space.