| 一类n项和数的表达式 |
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| 引用本文： | 王白银.一类n项和数的表达式[J].河北师范大学学报(自然科学版),1999,23(1):5-7,15. |
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| 作者姓名： | 王白银 |
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| 作者单位： | 张家口通信学院数学教研室 |
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| 摘 要： | 用Ｃｈｅｂｙｓｈｅ多项式的零点为节点的Ｌａｇｒａｎｇｅ多项式逼近高阶多项式时，误差公式中出现一类ｎ面和数。现给出此类和表达式，并用归纳法证明之。
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| 关 键 词： | n项和数 插值多项式 表达式 函数逼近 误差 |
On the Expression of a Type of n term Sum |
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| WANG Bai,yin.On the Expression of a Type of n term Sum[J].Journal of Hebei Normal University,1999,23(1):5-7,15. |
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| Authors: | WANG Bai yin |
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| Abstract: | When Lagrange polynomial,with its node being the null of Chebyshev polynomial,approximates the higher order polynomial,there will be a type of n term sum in the error formula.Give an expression to this type of sum and provide proof for it by means of induction. |
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| Keywords: | n term sum interpolation polynomial expression |
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