2,415 reputation
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location Canada
age 32
visits member for 1 year, 11 months
seen 1 hour ago

I hold a diploma in Network Administration (along with many industry certifications) and am currently studying Computer Science and Pure Math in University.


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 $||x|-|y||\leq|x+y|\leq |x|+|y|$.
Dec
17
comment How does the triangle inequality work for $|x-y|$?
I have here that $||x|-|y||\leq|x+y|\leq |x|+|y|$... I was able to find several proofs of the "reverse triangle inequality", but they all start off with $|x-y|$ instead of $|x+y|$ like in the upper and lower bounds given. How does this proof translate from $|x|-|y|\leq |x-y|$ to $||x|-|y||\leq |x+y|$?
Dec
17
asked How does the triangle inequality work for $|x-y|$?
Nov
25
awarded  Popular Question
Nov
6
asked How to conclusively determine the interior of a set