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 如何Find X from Y(对于非线性拟合)?

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T O P I C    R E V I E W
dylee Posted - 12/11/2018 : 7:44:24 PM
Origin Ver.pro8.6 and Service Release (Select Help-->About Origin):
Operating System:win8
Origin大侠们好,
我用多项式拟合(polynomial fit)得到拟合方程,并用Find X from Y求解。发现Y值只有在介于拟合时最大和最小Y值这区间的才有效,不在该范围的Y值无法求X,需要手动求解,而线性拟合不存在这个问题。不知有没有办法解决或如何用ORIGIN解方程。谢谢。
2   L A T E S T    R E P L I E S    (Newest First)
dylee Posted - 12/17/2018 : 7:27:03 PM
Yuki,thanks.
需要update到最新的版本比较麻烦啊。暂时忍一忍。不过很高兴新版本会有这个功能。
anyway, thanks.
yuki_wu Posted - 12/12/2018 : 9:46:48 PM
Hi,

1# 请试用我们最新版的 Origin 2019。
http://www.originlab.com/index.aspx?s=12&lm=62

2# 解方程可用以下的App:
https://www.originlab.com/fileExchange/details.aspx?fid=393

Regards,
Yuki

OriginLab

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