Singular Manual: ContactMatrix

| #### D.6.10.9 ContactMatrix Procedure from library `curvepar.lib` (see curvepar_lib). Usage: ContactMatrix(I); I ideal Assume: i is the defining ideal of a (reducible) plane curve singularity. Return: intmat N of the contact matrix of the branches of the curve. Example:
    LIB "curvepar.lib";
    ring r=0,(x,y),ds;
    ideal i=x14-x4y7-y11;
    ContactMatrix(i);
    ==> 0,1,1,1,1,
    ==> 1,0,1,1,1,
    ==> 1,1,0,1,1,
    ==> 1,1,1,0,1,
    ==> 1,1,1,1,0

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