Advanced algebra is a required course of undergraduate mathematics, which plays fundamental role in completing the study other professional courses for students. Matrix theory an important branch it not only basic subject, but also themost practical value. Widely used mathematical theory, matrix concept major algebra, Positive definite kind matrix, occupies position higher its has rich content,...

a mathematical modelling for more-winding single-phase transformer is presented. the incidence matrix-which gives the informations about the connection of the ends of the windings between the nodes-is multiplied leftside and rightside with the inverse of the inductance matrix of the more winding transformer. the result is a matrix which gives the relationship between nodes potentials and nodes ...

In this paper, a new method based on parametric form for approximate solu-tion of fuzzy linear matrix equations (FLMEs) of the form AX = B; where Ais a crisp matrix, B is a fuzzy number matrix and the unknown matrix X one,is presented. Then a numerical example is presented to illustrate the proposedmodel.