    % Using tables of data
    % note the number of col after the array
    % t1 represet an array and an integer
    % needed in this order in the plot functions
    /t1 { [
        1   0  -1   2   1
        2   2   0   5   0
        3   4   2   3   1
        4   3   3   2   2
    ] 5 } def

    % same number of lines as t1
    % NOTE 1/3 and 2/3 accurate values in col 3
    % coded 1 3 div ! YES it works !
    /t2 { [
     2   1 3 div
     5   2 3 div
     3   0.6
     2   2.4
    ] 2 } def

    [ -2 6 -2 6 ] Axe2 % grad after Axe2
    [(0)(2)(4)(6)] GradX
    [(-2)(0)(2)(4)(6)] GradY

    Filled % symbols
    Blue
    t1 1 5 Cols Circles
    Violet
    t1 1 3 Cols WithLines Diamonds

    % plot x y vectors of the same size taken from different tables
    Orange 2 Dash
    t1 1 Col t2 2 Col Squares