Calculation of exact bounds for the solution set of linear interval systems

A new idea for exact solving of the complex interval linear systems

In this paper‎, ‎the aim is to find a complex interval vector [Z] such that satisfies the complex interval linear system C[Z]=[W]‎. ‎For this‎, ‎we present a new method by restricting the general solution set via applying some parameters‎. ‎The numerical examples are given to show ability and reliability of the proposed method.

Enclosures for the solution set of parametric interval linear systems

We investigate parametric interval linear systems of equations. The main result is a generalization of the Bauer–Skeel and the Hansen–Bliek–Rohn bounds for this case, comparing and refinement of both. We show that the latter bounds are not provable better, and that they are also sometimes too pessimistic. The presented form of both methods is suitable for combining them into one to get a more e...

study of cohesive devices in the textbook of english for the students of apsychology by rastegarpour

this study investigates the cohesive devices used in the textbook of english for the students of psychology. the research questions and hypotheses in the present study are based on what frequency and distribution of grammatical and lexical cohesive devices are. then, to answer the questions all grammatical and lexical cohesive devices in reading comprehension passages from 6 units of 21units th...

Stability results for set solution of fuzzy integro-differential systems

The Shape of the Solution Set for Systems of Interval Linear Equations with Dependent Coeecients

A standard system of interval linear equations is deened as Ax = b, where A is an m n coeecient matrix with (compact) intervals as entries, and b is an m?dimensional vector whose components are compact intervals. It is known that for systems of interval linear equations the solution set, i.e., the set of all vectors x for which Ax = b for some A 2 A and b 2 b, is a polyhedron. In some cases, it...