Tow inputs, or say variables, determine the value of one output. z=f(x,y), but I am not sure what the function look like explicitly. So I did a lot of measurements and by the end I got three sets of data: 7 x values, 21 y values, and 147 corresponding z values. The surface fitting is the method that can help me find the explicit form of function z=f(x,y). And I used the Surface Fitting Tool in MATLAB to do this.
This tool has a very user-friendly interface, so not much explanation is needed here.
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| Screen shot of Surface Fitting Toll |
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