What is Xi? Why create it? I chose Xi after the 14th letter of the greek alphabet, it is a personal favorite letter of mine and doesn't seem to get much recognition or love from the math community, so ...

I'm planning my next semester and am wanting to take Linear Algebra and Differential equations and need to know if there is anything I need to brush up on for either class. A lot of my friends are ...

Abstract: The freedom in the definition of a time-varying transfer function is formalized by introducing the generalized Weyl correspondence, which includes Zadeh's (1950) function and the Weyl symbol ...