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    %% Open a File
% Open the file |num2str.m| in the Editor. MATLAB opens the file
% |_matlabroot_\toolbox\matlab\strfun\num2str.m|. If a file called
% |num2str.m| exists in a folder that is before |toolbox\matlab\strfun|
% on the MATLAB path, MATLAB opens that file instead.

open num2str.m