Recent submissions

Comment · 19 days ago
Unless the existence of the reason is also proved.
Comment · 19 days ago
Maybe the open problems are just by nature non-elegant and we human beings are bad at non-elegant mathmatics and found them either hard or not interesting before.
Comment · 1 month ago
It is interesting how "hyper-text" is considered plain nowadays
Comment · 1 month ago
Comment · 1 month ago
I was hoping that it was "404 not found"
Comment · 1 month ago
I thought a flag is 1 bit
Comment · 2 months ago
As a Chinese, I would say most public toilet I came across are cleaner then the toliet in my home... Before 2015, I was young, a bit shy and hated dirty toilets so I rarely go to toilet outside. (Also at that time I lived with my father and he kept our toilet really clean. <3) When I was like 8 years old (at 2000s) or younger, I once pee in my pants at school because I really didn't want to go to the toilet in the school... I think that is the last time I pee-ed myself.

So I would say it did work.

But TBO I moved to Shanghai after university which is generally richer than my hometown so I'm not sure about the condition in my hometown nowadays.

Comment · 2 months ago
> Red means Rear, and white means front

And yellow means sides then? Make sense to me.

Comment · 2 months ago
Never see this in China and didn't know it exists before.
Comment · 2 months ago
*Practice talking like Claude so that I can eventually let Claude reply my messages and no one feel strange
Comment · 2 months ago
Chinese native speaker here. On Zhihu (known as Chinese Quora), I feel like every piece of answers are AI-generated nowadays. Although before LLM time, maybe 90% of content there are also meaningless. There must be some false positives, but I'm just becoming uncomfortable with those AI-like tones like "not.. but.." or something. I'm getting persecutory delusion on it.
Comment · 2 months ago
To me it doesn't seem wrong to call covectors "row vectors", but one shouldn't simply convert them to each other with no good reason.
Comment · 2 months ago
I found it really insightful (and always overlooked) to distinguish between vector and co-vector spaces. It doesn't necessarily produce new knowledge, but makes things more clear.
Comment · 3 months ago
You don't place the bombs, but still find the bombs. And you still explore by finding x.
Comment · 3 months ago
I'm super confused. In your example, ++i is equivalent to (i+1) and the loop updates i itself. But with the syntax in the blogpost, i is only initialized, and it is the ++i that updates the value?

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