The matrix norm of a matrix, and the function defined here of vector x, is a number. What number is it for this x?
Hey guys, I have a question regarding a question of an assignment I have, and I'll describe my attempt at a solutionSo I figured it should be pretty easy. I only need to prove the following three conditions for ||x|| to be a vector norm1.||x||>= 0 , for x is in Rn and ||x|| = 0 iff x=02. ||ax|| = |a| * ||x|| for x is in Rn and a is in R. ||x + y||
edit: "a is in R"