期刊
NUMERICAL ALGORITHMS
卷 75, 期 3, 页码 655-674出版社
SPRINGER
DOI: 10.1007/s11075-016-0215-7
关键词
Interpolation; Bernstein-Vandermonde matrix; Totally positive matrix; Generalized Kronecker product; Padua points
资金
- Spanish Research Grant from Spanish Ministerio de Economia y Competitividad [MTM2015-65433-P]
The problem of polynomial interpolation with the Lagrange-type data when using the Bernstein basis instead of the monomial basis is addressed. The extension to the bivariate case, which leads to the use of a generalized Kronecker product, is also developed. In addition to the matricial description of the solution and the proof of unisolvence, algorithms for the computation of the coefficients of the interpolating polynomial are presented. Numerical experiments illustrating the advantage of computing with Bernstein-Vandermonde matrices instead of with Vandermonde matrices are included.
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