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visits member for 3 years, 8 months
seen Aug 25 at 21:44

Nov
27
accepted Geometric interpretation for complex eigenvectors of a 2x2 rotation matrix
Nov
20
asked Geometric interpretation for complex eigenvectors of a 2x2 rotation matrix
Sep
12
comment How to calculate $\lim \limits_{n \to \infty}(1 +\frac{a}{n})^n$?
What definition do you know for $e$? Do you know the value of $\lim (1+\frac{1}{n})^n$?
Jul
9
awarded  Nice Question
Jul
8
asked Best books in the genre “______ for Mathematicians”
Jun
8
awarded  Constituent
Jun
8
awarded  Caucus
May
17
awarded  Popular Question
Feb
22
comment If $A,B\in M(2,\mathbb{F})$ and $AB=I$, then $BA=I$
The downvote was from me. Though what you have written is mathematically correct, it does not answer the OP's question as stated.
Feb
20
awarded  Nice Question
Feb
2
answered Is there a “canonical” representation of integers using numbers other than primes?
Jan
28
comment Find members of this field.
To find -1 in $\mathbb{Z}_5$, recall that the symbol "-1" stands for the (unique) element which, when added to 1, yields zero. You only have five possibilities to check. (The problem of finding 1/3 in $\mathbb{Z}_7$ is similar.)
Jan
16
comment truth table equivalency
I believe that ~ is the "not" operator.
Dec
14
awarded  Yearling
Dec
13
awarded  Civic Duty
Dec
3
awarded  Enlightened
Dec
3
awarded  Nice Answer
Nov
29
comment functional equation uniqueness $f(x^{2})= f(x)^{2} $ in $\mathbb{C}$ and $f(x)+f''(x) = 0 $ in $\mathbb{C}$
@ccc: the problem statement requires that $f$ be holomorphic.
Nov
14
comment Was it an even deal for me?
Completely changing the question after posting it (without leaving any hint that the question has changed) is considered bad form.
Sep
28
accepted Why are the centers of $R$ and $\text{End}_{\text{Ab}}(R)$ isomorphic?