echo (Matlab function) Echo lines during execution

## Matlab/Scilab equivalent

Matlab | Scilab
    echo
    mode

## Particular cases

Scilab mode and Matlab echo are not exactly equivalents but they both change the information displayed during execution. Scilab mode has to be called inside a script or a function but Matlab echo can be called from prompt. However, some uses are equivalents such as:

echo

  is equivalent to Scilab mode(abs(mode()-1)) for scripts and non-compiled functions

echo on

  is equivalent to Scilab mode(1) for scripts and non-compiled functions

echo off

  is equivalent to Scilab mode(0)