I know I have had the experience of trying to ask this on mathstackexchange and getting a bunch of answers telling me to learn homological algebra and Ext, which is more effort than a poor undergraduate wants to spend to get at a concrete problem. However, I think there is a natural dir...
Not just when he gets the answers right but when he can teach the concept back to you, especially if he can do so with a word problem. Math-U-See will show you how. So, if you want to give your child a rock-solid mathematical foundation, if your child is shaky on the basics, ...
ATime dependent problem with a delta function Hello, I try to solve a time dependent problem described by a Hamiltonian of the type $$ \mathcal{H}(t) = H_0 + V \delta(t) .$$ I started by trying to solve the Schrödinger equation with ##H_0 = p^2 / 2m##, but I'm gettin...
(keeping a moving object in one place while recognizing different number sequences in another place on the screen). Each question is timed, but the only time a question timed out on me was a "word" math problem that I was just about to answer when it moved on to the next question. ...
并且同样采用单步优化方式, 使用\delta=\delta-\xi_{\delta}\nabla_{\delta}\mathcal{L}_{train}(\delta,\alpha)\更新\delta\(此时\alpha\不可训练, 训练方式为梯度下降), 再使用\alpha=\alpha-\xi_{\alpha}\Big(\nabla_{\alpha}\mathcal{L}_{val}\Big(\delta^{'},\alpha\Big)-\xi_{\delta...
Let me know any questions you have in the comments below and I’ll try to work the answers into the next article.