# Convex functions

1. Mar 26, 2012

### russel.arnold

let f(X) : Rn --> R be a function defined on convex set S s.t S is a subset of
Rn (real space n-dim). Let f is positive throughout. Then define g(x) = (f(x))^2. Prove that if f(x) is convex then g(x) is also convex.

2. Mar 26, 2012

### SW VandeCarr

This needs to be posted in the Calculus and Beyond Homework forum with your attempt at a solution.