krastanov

158 ms·

1531.
by krastanov 13y ago
Yeah, but if they (the HFT) are not there the only thing that seems to change (in my naive understanding) is that there is no "tax" on liquidity, but the liquidity is still there.
1532.
by krastanov 13y ago
Isn't the entire point, that the anti-HFT folks are trying to make, that if HFT is abolished then we will still have liquidity? As in "Liquidity is not created by HFT. HFT are just an intermediary between the actual providers of l
1533.
by krastanov 13y ago
I think that the scoring system can be improved. This AI wins with a lot less moves than me, hence it gets lower score for a solution "smarter" than mine.
1534.
by krastanov 13y ago
I am certain that the sympy mailing list would be extremely happy to hear more about your use of live.sympy.org. Especially if you have any suggestions or requests.
1535.
by krastanov 13y ago
I will give an example, not the general definition. Consider the function f: x -> sin(x)/x. At x=0 you indeed have a division by 0, and if you stick to blindly using your notation it does not work. The function is not defined at x=0
1536.
by krastanov 13y ago
Sympy for interactive use is usually meant to be used with ipython, where it gets a nicely rendered latex output.
1537.
by krastanov 13y ago
This is because of a rigorously defined procedure called "extending by continuity". The function is continuous, your issue is just an artifact of notation.
1538.
by krastanov 13y ago
You are using live.sympy.org. It has its own issues. The library itself works well when ran from normal python prompt.
1539.
by krastanov 13y ago
It does fail on live.sympy.org
1540.
by krastanov 13y ago
I made an account specifically to address this fallacy. It is absolute nonsense to pretend that "Global Cooling" was ever an accepted scientific prediction. Wikipedia is sufficient for a quick overview: https://en.wik