How to find the vaule of a 2-D plot at certain point
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I have drawn a 2-D plot using the attached data points in matlab.
I would like to find the exact value of the function at exact x coordinates such as 1.2, 1.3 and etc.
The exact value of the function at these points are not knwon.
Which function should I use to find the values?
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Alan Stevens
2020 年 8 月 24 日
Use interp1 to interpolate between known values. Of course you can't guarantee exact values unless you know the exact form of the function!
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