CVX xlog(1+y/x)

Dear everyone,I have a concave problem which objective function cantains the form like x*log(1+y/x)。 x and y are variables.Inputting this form directly will cause an error. How can I solve this problem?

Reformulate as

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Dear Mark where to find all these commands like, -rel_entr(x,x+y) , as mentioned here. Where is the documentation for all these special commands.


we show how to convert them to conic form. That might be useful to.

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