Reputation
2,519
Top tag
Next privilege 3,000 Rep.
Cast close and reopen votes
Badges
2 16 49
Impact
~150k people reached

Mar
10
awarded  Popular Question
Mar
9
revised How can I find the coefficient of a term in this generating function by using the “old” method?
added 108 characters in body
Mar
9
asked How can I find the coefficient of a term in this generating function by using the “old” method?
Mar
4
accepted How do I design a generating function to count subsets of distinct objects?
Mar
3
comment How do I design a generating function to count subsets of distinct objects?
$(1+x)^{250}$ looks like it does not take into account the limitations of at most 3 per state. Given your other advice, however, I came up with $g(x)=(1+5x+10x^{2}+10x^{3})^{50}$
Mar
3
asked How do I design a generating function to count subsets of distinct objects?
Feb
26
awarded  Notable Question
Feb
20
awarded  Notable Question
Feb
12
awarded  Popular Question
Feb
10
awarded  Notable Question
Feb
2
accepted How to tell if I am double counting in a combinatorics problem?
Feb
2
asked How to tell if I am double counting in a combinatorics problem?
Jan
30
revised Help with the algebra in for this number theory proof?
Formatted with tex
Jan
29
awarded  Popular Question
Jan
26
awarded  Notable Question
Jan
24
awarded  Popular Question
Dec
18
comment How does the triangle inequality work for $|x-y|$?
Yes, that's what I ended up finding. Never occured to me
Dec
17
accepted How does the triangle inequality work for $|x-y|$?
Dec
17
comment How does the triangle inequality work for $|x-y|$?
Nevermind - I found a proof that shows the inequality using $|x+y|$
Dec
17
comment How does the triangle inequality work for $|x-y|$?
But my question, though, is how $||x|-|y||\leq|x+y|$? My textbook says (without proving) that $||x|-|y||\leq|x+y|\leq |x|+|y|$.