Recent content by ayas

Linear Programming Theory, "Optimality Criterion" Question In a (theory oriented) linear programming class, I am studying the simplex method. The basic feasible solution represented by a tableau is said to be 'optimal' when it respects the Optimality Criterion: 'If the objective row of a...

Hello, I know how to start but I don't know how to end that proof. It's supposed to be easy: Let S a subset of Rn. PROVE THAT the boundary of S is a closed set. (I'll use d for delta, so dS is my convention for "the boundary of S"). So here I go: dS is closed iff it contains all of...

Everybody, thank you for all your suggestions, I'll try to get a hand on as many as I can to be able to compare and find what seems good. If you have other suggestions, don't hesitate to post and also please stress on what is good and/or bad about your book. HallsofIvy, to answer your...

Hello, I am currently taking an advanced calculus class and the textbook is "Advanced Calulus" By Folland. This textbook is interesting because it goes deep into every subject treated, but at the same time I HATE it because it is very thin compared to the material treated: ie everything is...