hello, I have this graph shown below, I want to use it in my code for find (Y) value by giving (X) value, there is no equation can fit this curve, can you tell me the way for using this graph in my code please?

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mohamed mohmood
mohamed mohmood 2016 年 4 月 14 日
回答済み: Steven Lord 2016 年 4 月 14 日

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Kuifeng
Kuifeng 2016 年 4 月 14 日
vq = interp1(x,v,xq,method) %help interp1
Steven Lord
Steven Lord 2016 年 4 月 14 日
Export the fit to the workspace then evaluate it. See the "Generate Code and Export Fits to the Workspace" and "Evaluate a Curve Fit" items in the Examples and How To section of this documentation page.

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