Finding all solutions of nonlinear systems of equations using linear programming with guaranteed accuracy

Yusuke Nakaya, Shin'ichi Oishi

Research output: Contribution to journalArticle

9 Citations (Scopus)


A linear programming-based method is presented for finding all solutions of nonlinear systems of equations with guaranteed accuracy. In this method, a new effective linear programming-based method is used to delete regions in which solutions do not exist. On the other hand, Krawczyk's method is used to find regions in which solutions exist. As an illustrative example, all solutions of the nonlinear system of equations describing equilibrium conditions of the "high polymer liquid system", which is a well-known ill-conditioned system of equations, are identified by the method.

Original languageEnglish
Pages (from-to)171-177
Number of pages7
JournalJournal of Universal Computer Science
Issue number2
Publication statusPublished - 1998 Dec 1



  • All Solutions
  • Guaranteed Accuracy
  • Krawczyk's Method
  • Linear Programming
  • Nonlinear Equations

ASJC Scopus subject areas

  • Theoretical Computer Science
  • Computer Science(all)

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