Syntax

   f = fun2orth(x, func, varargin)

Description

   f = fun2orth(x, RHS, varargin) converts a polynomial from power basis
   to choosen orthogonal basis using formulation pow2orth, or converts a
   function to the choosen basis using orthogonal interpolation.

Inputs (required)

   x    = independent tau variable (itau object).
   func = function to aproximate (string). Must be non vectorized.

Inputs (optional)

   n    = dimension to aproximate (integer).

Output

   f    = approximated coefficients (double vector).