Reputation
6,053
Next privilege 10,000 Rep.
Access moderator tools
Badges
3 22 29
Newest
 Good Answer
Impact
~124k people reached

May
18
revised solving $a = \sqrt{b + x} + \sqrt{c + x}$ for $x$
better title; another tag
May
15
revised solving $ x = \frac{a}{a+b} $ for a
better title
May
15
revised Expected number of throws of 6 dice until all 6 faces appear
better title; removed non-relevant tags
May
15
comment Expected number of throws of 6 dice until all 6 faces appear
What have you tried? What do you know? Are you familiar with the concept of expectation?
May
11
comment What is known about multi-perfect numbers?
The references here look like a good place to start: oeis.org/A007691
May
4
comment Markov Chains and Music Composition
What makes you interested in this question if you do not know what Markov chains are? Do you know anything about music composition, or probability?
Apr
25
revised Proving $T(n) = 1 + \sum_{j=0}^{n-1} T(j)$, $T(0)=1$ implies $T(n)=2^n$
better title
Apr
24
revised proof that $\frac{e^{-t}}{2}(t^2+2t+2)\le1$ for $t\ge0$
better title
Apr
20
revised Value of the 3 prime numbers
retagged
Apr
17
comment Multiples of some set has density
An early mention: Erdos, On the Density of Some Sequences of Integers, Bull. Amer. Math. Soc. Volume 54, Number 8 (1948), 685-692: "It is very easy to see that if $\sum \frac{1}{a_i}$ converges, then the sequence of $b$'s [the elements of the set of multiples of the set of $a$'s] has possesses a density." He does not prove this, but instead proves that a certain weaker condition is sufficient.
Apr
17
comment Multiples of some set has density
You mean $M(S)$ (or some other similar notation) rather than $S$ in your limit expression, right? What you have it the density of $S$, not the set of multiples of $S$. Unless I'm confused.
Apr
17
answered Why does the graph of $y=\gcd \left(\frac{x}{y},xy\right)$ seem to have 4 “straight” lines?
Apr
15
comment Sums of triangles
What is "the triangle of a number"?
Apr
13
revised Probability of circle inside square
title spelling
Apr
3
revised Handshake problem when no. of handshakes are given
no reason to put SOLVED in the title
Apr
3
revised Proving $2^{2^n}+3^{2^n}+5^{2^n}$ is divisible by $19$ for all $n\geq 1$ by induction
removed extraneous period
Apr
1
revised Calculate new least common denominator
removed unrelated tags
Apr
1
reviewed Approve Numerical Approximation for 2D Curvature
Mar
30
revised solutions to $x^2 \equiv a \mod p^\lambda$ with $a = p^\alpha k$, $\lambda>\alpha$
more informative title
Mar
18
revised Probability of at most two aces
better typesetting, wording, corrected typos