How to express this concave function in the CVX? Uncategorized Apr 7, 2015 Z zhangljian Apr 7, 2015 #1 Hello, everyone! Could you tell me how to express the following concave function in the CVX? f(x,t) = t \log (1 + \frac{x}{t}), where x and t are variables. Thanks! Z zhangljian Apr 7, 2015 #2 I got it. It should be -\text{rel_entr}(t,t+x)
