Matlab surface fitting: why and how

Recently I come across a problem like this in my work:

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.

Screen shot of Surface Fitting Toll

Link Exchange

This blog has ~5000 page views each month. I am more than happy to exchange links with you if you are the owner of a blog/website which focuses on the engineering, science, and technology.

Leave me a comment if you are interested and I will respond in a timely manner.