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visits member for 2 years, 8 months
seen Apr 8 at 23:55

Aug
21
awarded  Yearling
Apr
9
awarded  Enlightened
Apr
9
awarded  Nice Answer
Aug
21
awarded  Yearling
Aug
19
revised If $x, \log_{10}(x), \log_{10}\log_{10}(x)$ are in arithmetic progression, find the range of $x$.
proof of existence
Aug
19
answered If $x, \log_{10}(x), \log_{10}\log_{10}(x)$ are in arithmetic progression, find the range of $x$.
Aug
18
comment $f(x) = x^r$ equaling to $r \cdot x$ when $f$ is cyclic group $G \rightarrow G$
No, the $\cdot$ in $r\cdot x$ is plain old multiplication of integers. This multiplication is not the same as the group operation, which in this case happens to be integer addition.
Aug
18
comment $f(x) = x^r$ equaling to $r \cdot x$ when $f$ is cyclic group $G \rightarrow G$
The added quote clarifies everything :) When the group operation is addition, $f(x) = rx$ by definition. As Marc notes, the notation is somewhat distasteful.
Aug
18
answered Find a side of a triangle given other two sides and an angle
Aug
18
comment $f(x) = x^r$ equaling to $r \cdot x$ when $f$ is cyclic group $G \rightarrow G$
I must be missing something. What do you mean by $r \cdot x$? Is $r$ an element of $G$?
Jun
25
answered Closest point of line segment without endpoints
May
12
answered Sum from 0 to n of $ n \choose i $?
May
12
answered Working out two lengths when only one length and an angle is known on a right-angled triangle
Apr
27
revised Best self study math books?
edited tags
Apr
26
revised Showing that $\cos\left(\frac{\pi}{5}\right)=\frac{1}{2}\phi?$
added image comment
Apr
26
answered Showing that $\cos\left(\frac{\pi}{5}\right)=\frac{1}{2}\phi?$
Apr
26
comment $ \lim\limits_{n \to{+}\infty}{\sqrt[n]{n!}}$ is infinite
The answer with the least machinery. +1
Apr
25
answered Finding all graphs with a certain vertex degree sequence
Apr
7
answered number of vectors in the decomposition of vector
Apr
6
answered Is equality the same as identity?