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Jan
5
comment Optimization-like question
"while differing from their previous values as little as possible". There are more than one way to minimize three values.. You need to decide which norm you want L1 minimizes the sum of the three differences, L2 minimizes the sum of their squares, and Linfinity minimizes the maximum difference. Suppose that their values could be changed like any of the follow to meet N: (0,0,+2),(+0.5,+0.5,+1.1),(+1,+1,+1). Out of those, the first would be the best according to L1 (sum=2), but the second is the best L2 (sum of squares = 1.71), and the third is the best Linfinity (maximum difference is 1).
Sep
24
revised What are the methods of dividing numbers to get weird values like $16\over 17$ without a calculator?
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Sep
24
answered What are the methods of dividing numbers to get weird values like $16\over 17$ without a calculator?
Jul
17
comment Do the matrices with maximum determinant always have integral values
+1, but I would clarify the wording of we can always set that element to either 0 or 1 without decreasing the determinant. To me that sounds like we can set it to 0 or 1 will never decrease the determinant, when in reality usually only one of those values will not decrease the determinant.
Jul
8
comment Why does one third belong to the Cantor set?
@Brian Another way would be 7.
Jun
15
revised How can we simplify the expression $P+\sqrt{ (P^2+\sqrt{ (P^4+\sqrt{ (P^8+…)}}}$?
Fixed stuff
Jun
15
suggested approved edit on How can we simplify the expression $P+\sqrt{ (P^2+\sqrt{ (P^4+\sqrt{ (P^8+…)}}}$?
Dec
16
comment Getting percentage difference between two numbers?
x = 100*5000/80000 = 500000/80000 = 50/8 = 6.25
Dec
16
comment Getting percentage difference between two numbers?
That is a raise of $5000 per $80000. Percent means per hundred, so to convert that to a percent, we just solve x/100 = 5000/80000 for x.
Dec
15
awarded  Caucus
Sep
24
awarded  Autobiographer
Apr
25
comment Does 17% have to be equal to 0.17?
17% miles 83% kilometres
Feb
14
accepted Is x^x an exponential function?
Feb
14
comment Is x^x an exponential function?
I am trying to classify Cayley's formula $n^{n-2}$.
Feb
14
awarded  Commentator
Feb
14
comment Is x^x an exponential function?
Is there a good way to describe its growth?
Feb
14
asked Is x^x an exponential function?
Aug
15
awarded  Yearling
Aug
15
revised Should I put number combinations like 1111111 onto my lottery ticket?
added 6 characters in body
Aug
14
answered Should I put number combinations like 1111111 onto my lottery ticket?