hyperinterpolation

English

Etymology

hyper- +‎ interpolation

Noun

hyperinterpolation (usually uncountable, plural hyperinterpolations)

1. (mathematics) interpolation on a surface of more than two dimensions
   • 2015, Heping Wang, Ian H. Sloan, “On filtered polynomial approximation on the sphere”, in arXiv‎^[1]:

     The resulting "filtered polynomial approximation" (a spherical polynomial of degree $2L-1$) is then made fully discrete by approximating the inner product integrals by an $N$-point cubature rule of suitably high polynomial degree of precision, giving an approximation called "filtered hyperinterpolation".