关于修正的二元三角插值多项式

On the bivariate trigonometric interpolating polynomials of smendment

将二元Lagrange三角插值多项式的基函数作组合平均 ,构造出一个组合型二元三角插值多项式Cnm( f ;x ,y) ,得到了算子Cnm( f ;x ,y)

In this paper a bivariate trigonomertric interpolation polynomials operator C nm (f;x,y) is constructed throughing average of the fundamental function and its convergence order is achieved.