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在本中,我们利用Pldé-type逼近厦正变多项式的知识给出了一种计算分段有理插值的算法,它具有快速、简便及精度高的特点。 相似文献
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关于有理插值函数存在性的确定 总被引:1,自引:0,他引:1
在本中,我们利用Newton插值多项式,改进了[1]中的方法,使其能更简便,快速,严谨地判别有理插值函数的存在性,并在其存在时给出相应的插值有理函数的具体表达式。 相似文献
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In [1], C. Brezinski raised three unsolved questions in studing multivariable Pade-iype approximation, and the convergence of multivariable Pade-iype approximants under the general conditions is one of them. We have only seen in [2] that the convergence of the mullivariable Fade-type approximants is discussed for a kind of functions defined by Stieltjes integrations under some special conditions. However, the general convergence theorem has not been seen so far. In this paper, some error formulae of bivariate Fade-type approximants in in-legral form are given. By virtue of them, a number of convergence theorems of bivariate Pade-iype approximants are proved under general conditions. 相似文献