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I do not think one can copyright the shape, which follows a math equations derived long time ago for eigenvalues of L-shaped membrane. So how close can we get in the presentation of the function and not step into copyrighted territory? When 9 years ago I created this image, I chose my own colors, rotation angles and reflectance parameters, which in the end resemble Matlab logo. I think that is withing the guideline of Commons:Fan art. If the issue is that it is not far enough, than I can change the the function or parameters to look less like it. For example Gaussian function in the image is a very different shape with similar color. I can pick other shapes which are closer. --Jarekt (talk) 05:10, 7 March 2017 (UTC)[reply]
