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ArrFlats    --    list of flats of an arrangement of hyperplanes


Syntax 
ArrFlats(A: LIST): LIST

Description
This function returns the list of flats from the list A of hyperplanes in the arrangement.

Example 
/**/ use QQ[x,y];	
/**/ A := [x, x-y, y];
/**/ ArrFlats(A);
[[ideal(0)],  [ideal(x),  ideal(x -y),  ideal(y)],  [ideal(x,  y)]]

See Also