Before diving into the mixed practice itself, let's solidify the fundamentals. A variable is a symbol, usually a letter, that represents an unknown value. An expression is a combination of variables, ...

Abstract: The goal of the sparse approximation problem is to approximate a target signal using a linear combination of a few elementary signals drawn from a fixed collection. This paper surveys the ...

An apparently easy-looking math problem has left internet users scratching their heads. The elementary-grade problem looks simple enough to solve in seconds, but has tripped up the masses. The basic ...

Abstract: The boundary element method (BEM) is a commonly used numerical approach to solve biomedical electromagnetic volume conductor models such as ECG and EEG problems, in which only the interfaces ...