Briefly, APL provides primitives to select elements of vectors or sub-dimensions of multi-dimensional arrays with bit vectors of the same size (if you've worked with numpy and pytorch, this will seem familiar) like this:
Startlingly productivity-boosting, and rather fun to use—but tools nonetheless.
，更多细节参见新收录的资料
We all know sleep is important, and we're repeatedly told that going to bed and waking up on a consistent schedule is useful. In theory, that sounds simple, but in practice, it's a big ask, especially when your smartphone is constantly begging for attention. Instead of scrolling mindlessly before bedtime, use technology to create a better wind-down routine.
В России допустили «второй Чернобыль» в Иране22:31
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