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| Hi Tianyi, Honestly don't try to understand it, it seems to be a mistake. It took me a while to understand what was going on. I'm a mathematician in discrete mathematics, so I have limited knowledge of complex analysis. When I wrote that lesson, I... |
| Hi Roberto, This is Marc, the instructor of the course for Discrete Math. The study group just finished today, the course framework will be available in a few days. Happy learning! Marc |
| Hello Peter, Indeed, as Dave pointed out, you're basically abusing of the [properties of expectation][1]. Notice f(E(x)) is equal to E(f(x)) if f(x) is a linear function. For non-linear functions, f(E(x)) is not equal to E(f(x)). Norm is not a... |
| ![enter image description here][1] &[Wolfram Notebook][2] [1]: https://community.wolfram.com//c/portal/getImageAttachment?filename=hypercube.png&userId=2311323 [2]: https://www.wolframcloud.com/obj/b1da235c-bd34-4f65-b3d4-a78825040c82 |