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Newton

于 2011-03-16 发布 文件大小:1KB
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说明:  用牛顿下山法求解方程:下山因子在计算过程中可以变动,一般选择下山因子时从1开始,逐次将减半进行试算,直到能使下降条件成立为止。若当计算到某步时取不到满足要求的值(或值小到无法容忍),这时称“下山失败”,需要另取初值重新算起。(Descent method with Newton' s equation: down factor in the calculation process can change, usually selected from the 1 start down factor, will be halved for successive spreadsheet until the can down the conditions established. If when calculating the time to take a step not meet the requirements of the value (or values ??too small to tolerate), then the " down failed" , you need an alternative initial re-counting.)

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