
Math Cocktail
IntervalComputations
General Info

Plot the solution set of a 2dimensional square interval linear system A.x = b, where each element of the matrix A and the righthand side vector b can be either a number (floatingpoint, integer, rational, exact singleton, or a numeric valued expression) or a numeric valued interval. Usually, the solution set of the interval linear system A.x = b has a complicated shape (in general not necessarily convex, connected, or bounded). It is connected and bounded if the matrix A is regular. In this case it constitutes a twodimensional polyhedron which is a sum of at most 4 convex polyhedrons obtained as intersections of the solution set with every of the four orthants of the solution space. Cases in which the solution set cannot be plotted:

