| #### D.14.1.43 arrBoundedChambers Procedure from library `arr.lib` (see arr_lib). Usage: arrBoundedChambers(A); arr A Return: [int] The number of bounded chambers of an arrangement, which is equal to the evaluation of the Poincare polynomial at -1. Example:
    LIB "arr.lib";
    ring R = 0,(x,y),dp;
    arr A = ideal(x,y,x+y-1);
    arrBoundedChambers(A);
    ==> 1
See also: arrBoundedChambers; arrChambers; arrPoincare.

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