c_norm.m

   1 function c_norm = c_norm(w, a, b, v)
   2   %
   3   % The norm on C[a,b] induced by c_inner_product.
   4   %
   5   % INPUT:
   6   %
   7   %   * ``w`` -- The weight function.
   8   %
   9   %   * ``a`` -- The left endpoint of the interval.
  10   %
  11   %   * ``b`` -- The right endpoint of the interval.
  12   %
  13   %   * ``v`` -- The vector.
  14   %
  15   % OUTPUT:
  16   %
  17   % The norm of `v`; that is, the inner product sqrt(<v, v>).
  18   %
  19   c_norm = sqrt(c_inner_product(w, a, b, v, v));
  20 end