Northampton, MA, 13 J anuary 2000: Microcal Software, today announced the release of the Origin Link for Mathematica, an easy-to-use interface between Origin1, a leading scienti® c graphing and data analysis software, and Mathematica, the world’s only fully integrated technical computing system. The Origin Link for Mathematica greatly simpli® es the plotting, customization and export of publica...

Let X be an F-space, and let Y be a subspace of X of dimension one, with X/Y = lp (0 p oo). Provided p ~ 1, X ~lp; however if p = 1, we construct an example to show that X need not be locally convex. More generally we show that Y is any closed subspace of X, then if Y is an r-Banach space (0 r:5 1) and XI Y is a p-Banach space with p r S 1 then X is a p-Banach space; if Y and XI Y are B-convex ...

We have constructed a CAI system incorporated with Mathematica for science and engineering students. The advantages of this system are that (1) we can use variables in mathematical formulas so that different problems can be shown to the users, (2) we can use algebraic formulas, (3) the answer is automatically made by Mathematica using the given process to the answer, (4) various expressions of ...

In a present paper a problem of classification of Af f (2, R)-orbits' dimensions is considered on example of an autonomous two-dimensional affine differential system of first order. Methods of Lie algebras are used in the work, as well as methods of group analysis. Computer algebra systems " Bergman " and " Mathematica 5.0 " are widely used.

We discuss the online teaching of Linear algebra using the Wolfram Research software product called webMathematica. The teaching is based on interactive electronic tutorials developed by the author. The tutorials provide distant students with the instruments of remote calculation and visualization of the calculation results. All this increases the chances for students to deepen the understandin...

The following time delay system ẋ = Ax(t) + r ∑ 1 bq ∗ i x(t− τi)− bφ(c ∗ x(t)) is considered, where φ : R → R may have discontinuities, in particular at the origin. The solution is defined using the “redefined nonlinearity” concept. For such systems sliding modes are discussed and a frequency domain inequality for global asymptotic stability is given.