Singular Manual: zero

| #### D.4.17.2 zero Procedure from library `modules.lib` (see modules_lib). Usage: zero(n); n and m integer Return: returns the n x m zero matrix, with nongraded free modules for source and target Example:
    LIB "modules.lib";
    ring r;
    int n=4;
    int m=3;
    zero(n,m);
    ==>     {0} {0} {0}
    ==> {0}   0   0   0
    ==> {0}   0   0   0
    ==> {0}   0   0   0
    ==> {0}   0   0   0
    ==>

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