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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