|  |  D.14.1.43 arrBoundedChambers Procedure from libraryarr.lib(see  arr_lib).
 
Example: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.
 See also:
 arrBoundedChambers;
 arrChambers;
 arrPoincare.|  | LIB "arr.lib";
ring R = 0,(x,y),dp;
arr A = ideal(x,y,x+y-1);
arrBoundedChambers(A);
==> 1
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