Please note that the recommended version of Scilab is 6.0.0. This page might be outdated.
See the recommended documentation of this function
ending expression and row separator
semicolons are used to separate rows in a matrix definition (within brackets).
semicolons may also be used at the end of an instruction (in a file or in Scilab console). In this case it means that the result(s) is(are) not displayed. Conversely use comma (,) to get the display.