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Eric

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26 Mar 2013 function making input twice calculate double of a number by just passing the number in the argument of the function Author: tushar kataria

Thanks for this wonderful submission. I had no idea Matlab could perform multiplication! For years I've been saving variables to spreadsheets, multiplying them in Excel, and then importing them back to Matlab. I shudder at the countless hours I've wasted when I could have just done this work in Matlab. Thanks again.
15 Jan 2013 Trapezoidal Integration Simple and intuitive numerical integration based on trapezoidal rule. Author: Aravazhi Anbarasu

Do you claim any improvements over Matlab's built-in trapz function? If not, why bother?
25 Apr 2012 circle_fit A function to fit a circle to a set of 2D points Author: Val Schmidt

This seems equivalent to http://www.mathworks.com/matlabcentral/fileexchange/5557-circle-fit. Also, other algorithms are often more accurate when fitting data along only an arc (e.g., http://www.mathworks.com/matlabcentral/fileexchange/22643 ).

A good reference for fitting data to circles: "Least Squares Fitting of Circles" by N. Chernov and C. Lesort, Journal of Mathematical Imaging and Vision, Vol 23, 239-252 (2005). Nikolai Chernov has several good functions in the FEX for fitting to circles and ellipses.

08 Mar 2012 Assign the same values to many output variables MANY takes in the variable x and assign it to all the output variables. Author: Hairui

Of course

[x1, x2, x3, x4, x5] = deal(8);

using Matlab's built-in deal() function does the same thing.
08 Feb 2012 Get user home directory get the user's home directory platform independent Author: Sven Probst

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