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File: [local] / OpenXM_contrib / PHC / Ada / Main / mainvali.ads (download)
Revision 1.1.1.1 (vendor branch), Sun Oct 29 17:45:23 2000 UTC (23 years, 8 months ago) by maekawa
Import the second public release of PHCpack. OKed by Jan Verschelde. |
procedure mainvali ( infilename,outfilename : in string ); -- DESCRIPTION : -- This is the routine for validating the solutions of a polynomial system, -- as called by the central dispatcher. -- The arguments are the names of the input and output file respectively. -- FUNCTIONALITY : -- There are three types of functionality offered: -- 1. Weeding out the solution sets: -- check residuals to separate solutions from path failures; -- compute local condition numbers, which solution are regular/singular; -- see whether solutions are clustered, eventually multiple solutions; -- compute generators of the solution set in case of symmetry. -- 2. Computation of winding numbers: -- this requires a homotopy with solution paths at t < 1. -- 3. Validation of polyhedral end game: -- computation of frequency table of the path directions; -- this requires an output file of poco where the path directions -- have been computed.