rcdd: rcdd (Computational Geometry). R interface to (some of) cddlib (http://www.ifor.math.ethz.ch/ fukuda/cdd_home/cdd.html). Converts back and forth between two representations of a convex polytope: as solution of a set of linear equalities and inequalities and as convex hull of set of points and rays. Also does linear programming and redundant generator elimination (for example, convex hull in n dimensions). All functions can use exact infinite-precision rational arithmetic.

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