Singular Manual: netmatrix

| #### D.14.5.17 netmatrix Procedure from library `nets.lib` (see nets_lib). Usage: netmatrix(V); M matrix Assume: M is a matrix Return: visual presentation of M Theory: A Singular object is converted into a character array (a Net) for on screen printing. Example:
    LIB "nets.lib";
    ring r1=101,(x,y,z),lp;
    poly a=2x3y4+300xy-234z23;
    poly b=2x3y4z;
    poly c=x3y4z5;
    poly d=5x6y7z10;
    poly e=2x3y;
    poly f=4y5z8;
    matrix M[2][3]=a,b,c,d,e,f;
    print(M);
    ==> 2x3y4-3xy-32z23,2x3y4z,x3y4z5,
    ==> 5x6y7z10,       2x3y,  4y5z8
    netmatrix(M);
    ==> | 2x3y4-3xy-32z23 2x3y4z x3y4z5 |
    ==> | 5x6y7z10        2x3y   4y5z8  |
    ==>

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