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ArrCone

cone of an arrangement of hyperplanes

Syntax
ArrCone(A: LIST, t: RINGELEM): LIST

Description
This function returns the list of hyperplanes of the cone of the listA of hyperplanes of an arrangement with respect to the variable t.

Example
/**/ use QQ[x,y,t];	
/**/ A := [x, x-1, y];
/**/ ArrCone(A, t);
[x,  x -t,  y,  t]

See Also