print — prints variables in a file
print('file-name',x1,[x2,...xn]) prints xi on file 'file-name'
with the current format, i.e. the format used by scilab to display
the variables. All types of variables may be "print"'ed
Note : xi must be a named variable, with expressions variable
name part of the display is unpredictable.
print(%io(2),...) prints on Scilab's window. this syntax may be
used to display variables within a macro.