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Posets :: realRegions

realRegions -- computes the number of regions a hyperplane arrangement divides the space into



This method computes the number of regions cut out by the hyperplane arrangement.

i1 : R = RR[x,y];
i2 : A = {x+y,x,x-y,y+1};
i3 : realRegions(A, R)
-- warning: experimental computation over inexact field begun
--          results not reliable (one warning given per session)

o3 = 10

See also

Ways to use realRegions :

For the programmer

The object realRegions is a method function.