en Other Other پژوهشی Original <p align="center"> <strong>Abstract  </strong></p><p align="justify"> <font face="georgia,times new roman,times,serif"> This paper gives a survey of the theory and practice of nonlinear ABS methods including various types of generalizations and computer testing. We also show three applications to special problems, two of which are new.</font></p> Linear ABS methods, Huang method, Brent-Brown type methods,Petrov-Galerkin method, Newton method, quasi-Newton methods, bordered nonlinear systems, constrained optimization, primal dual interior point method 50 73 http://iors.ir/journal/browse.php?a_code=A-10-6-3&slc_lang=en&sid=1 Óbudai Galantai galantai.aurel@nik.uni-obuda.hu 000319475328460033 000319475328460033 Yes Spedicato 000319475328460034 000319475328460034 No