3 ms·
I am a little confused. When it says that each square corresponds to n sequential numbers, does it mean that the first square is the first n, and the second s
by drdeca 8y ago
I am a little confused.
When it says that each square corresponds to n sequential numbers, does it mean that the first square is the first n, and the second square (which is on the second row) is the first n after those, and the third square (also in the second row) has the first n after those, and so on,
Or, do the regions overlap?
I tried to look at the first 4 rows for n=5, but did not see the pattern depicted (each interval had a prime in it).
Am I interpreting what is meant by the blocks incorrectly, or does the pattern not work for small enough n?
- chickenstrips 8y agoFor fixed n, a block (x,y) contains the numbers n/2y^2-n/2y + yz + x for all 0 <= z < n.
- SomeMathComment 8y ago(n/2)y^2-(n/2)y + yz + x
- drdeca 8y agoMaking sure I am parsing that correctly: Is that ((n/2) * y^2) - ((n/2) * y) + (y * z) + x ? (For z ranging from 0 to n) If so, alright, that makes more sense to me, thanks. So, n * (y * (y-1)/2) + x + y * z ? Edit: does HN have an escape character to deal with the asterisks?
- dEnigma 8y agoHaving whitespace after the asterisk or indenting the line by two or more spaces seem to be the only possibilities according to the "Formatting Options"[1] [1]https://news.ycombinator.com/formatdoc https://news.ycombinator.com/formatdoc