Assigned Fri Feb 19, due Fri Feb 26 (at midnight)

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To submit by hard copy: give to Azam or me in person or leave under her door (WWH 411) (

Ground rules for homework: you can get help from any source (friends, classmates, books, the web) but you

- Ex 5.1
- Ex 5.13 (instead of proving part (b) formally, as an alternative you can check this in CVX on some examples; if you choose to do this, include a printout of your code and the result)
- Ex 5.21 (hint: to verify that f
_{1}(x,y)=x^{2}/y is convex, derive its Hessian matrix) - Ex 5.39 (except that in part (c), instead of proving your answer, you can investigate the answer using CVX, as in Ex 5.13).