Octave Programming Tutorial/Writing functions

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In Octave function definitions follow the following scheme:

function [return value 1, return value 2, etc] = name( arg1, arg2, etc )
    body
endfunction

As an example consider the factorial function, which takes exactly one argument and returns one integer value.

function result = factorial( n )
    if( n == 0 )
        result = 1;
        return;
    else
        result = prod( 1:n );
    endif
endfunction

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