摘要
The aim of this paper is to give upper bounds of the norm of the operator and associated error for a Lagrange interpolation problem by C^1 quadratic splines. The domain is rectangular and the type-2 triangulation is non--uniform. Moreover the location of data points allows a very simple compation of the interpolant.
The aim of this paper is to give upper bounds of the norm of the operator and associated error for a Lagrange interpolation problem by C^1 quadratic splines. The domain is rectangular and the type-2 triangulation is non--uniform. Moreover the location of data points allows a very simple compation of the interpolant.