This week, we bring you sample questions based on previous year questions of JEE Main for the chapter 'Matrices And Determinants' from Mathematics. The chapter includes: Matrices, algebra of matrices, ...

A well-known problem in numerical ecology is how to recombine presence-absence matrices without altering row and column totals. A few solutions have been proposed, but all of them present some issues ...

We meet a solutions architect who tells us that his defining characteristic is curiosity, and that for him success is in solving problems with technology, for people. In a recent episode of the First ...