How can i interpolate a circle with a few coordinates?

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Answer 1

[Image Analyst]

See the FAQ: http://matlab.wikia.com/wiki/FAQ#How_can_I_fit_a_circle_to_a_set_of_XY_data.3F

Answer 2

[Ercan]

Sorry but I have to say that is too much code for me at the moment. I am not so familar with all the Matlab codes. I have for instance three vectors like u=[1 0],v=[0 1] and w=[-1 0] and I want to plot a circle. How can I do this.

[Image Analyst]

If 7 lines of code exceeds the limit of how much MATLAB code you are able to comprehend, then I'm afraid I can't help you. You can try rectangle() to plot a circle in a single line of code . See the example in the help.