IntersectionList -- intersect lists, ideals, or modules |
Syntax |
IntersectionList(L: LIST of LIST): LIST IntersectionList(L: LIST of IDEAL): IDEAL IntersectionList(L: LIST of MODULE): MODULE |
Description |
Example |
/**/ use R ::= QQ[x,y,z]; /**/ Points := [[0,0],[1,0],[0,1],[1,1]]; -- a list of points in the plane /**/ IntersectionList([ ideal(x-P[1]*z, y-P[2]*z) | P in Points]); ideal(y^2 - y*z, x^2 - x*z) /**/ IntersectionList([ 1..7, 3..10, 0..5 ]); [3, 4, 5] |
See Also |