echo on all and echo off all set echoing for all function files.
(c) Copyright 1994 by The MathWorks, Inc.
echoonechooffechoechofcnnameonechofcnnameoffechofcnnameechoonallechooffall
echo controls the echoing of M-files during execution. Normally, the commands in M-files do not display on the screen during execution. Command echoing can be enabled for debugging, or for demonstrations, allowing the commands to be viewed as they execute.
echo behaves slightly differently, depending on whether a script file or a function file is being considered. For script files, the use of echo is simple; echoing can be either on or off, in which case any script used is affected:
echo on turns on the echoing of commands in all script files.echo off turns off the echoing of commands in all script files.echo, by itself, toggles the echo state.echo is more complicated. If echo is enabled on a function file, the file is interpreted, rather than compiled, so that each input line can be viewed as it is executed. Since this results in inefficient execution, use echo only for debugging.
echo fcnname on turns on echoing of the named function file.echo fcnname off turns off echoing of the named function file.echo fcnname toggles the echo state of the named function file.echo on all and echo off all set echoing for all function files.
(c) Copyright 1994 by The MathWorks, Inc.