mathcad拟合不收敛的问题
小弟用mathcad拟合一组数据，得到的值，通过x值求y值可以，但写了代码，通过y值来求什么时候x值等于y，就不收敛，具体的代码如图1，数据如图2，数据以及拟合后的图像如图3
小弟把代码也发上来，恳请大家给看看，再次先谢谢您了 清晰的代码 Your s(a) value ranges between 0 and 700.
No wonder it won't give you any result when you try to find a such that s(a) = 900. 3# iomega
谢谢楼上的兄弟谢谢您！
如图 m（200）也是不收敛 Try to use smaller value, rather than 0.1 in the m(p) subroutine.
4# y1949b Try to use smaller value, rather than 0.1 in the m(p) subroutine.
For instance, use 0.001 as a criteria, m(200) = 14.171.
Your code will easily trap into infinite loop if missing the value.
4# y1949b
iomega 发表于 2010-12-15 21:50 http://forum.simwe.com/images/common/back.gif
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