Reputation
Top tag
Next privilege 3,000 Rep.
Cast close & reopen votes
Badges
1 9 31
Newest
 Disciplined
Impact
~52k people reached

2d
reviewed Approve Seemingly Simple Equation Question “Verify my solution please!”
Aug
30
reviewed Approve How do you symbolically represent the general principle of induction?
Aug
30
asked A Fourier cosine series of type $f(x)=\frac{a_0}{2}+\sum_{k=1}^\infty a_k \cos(2^k x)$.
Aug
29
reviewed Approve Finding eigenvalues from characteristic polynomial
Aug
28
comment Solutions to Linear Equation
Yes, @hardwork!
Aug
28
answered Solutions to Linear Equation
Aug
28
revised If limit of $ \lim_{x\to0}(\frac{sin2x}{x^3} + \frac{a}{x^2} + b) $ is zero, then find a+b?
added 13 characters in body
Aug
28
reviewed Approve How to calculate the limit of $(\frac{x}{x+1})^x$
Aug
27
reviewed Reject Can a set containing a string of length $\omega_0$ be well-ordered by substring total order?
Aug
27
reviewed Approve Prove by induction and recursion that $n!=n(n-1)(n-2)…(3)(2)(1). $
Aug
27
comment Show that the continuum of elements $e^{i\lambda t}$ forms a complete orthonormal subset of $B^2$.
Yes, the scalar product must vanishes. However, for me, this is trivial for discrete case ($e^{int}$ instead of $e^{i\lambda t}$) is not so for the continuous case.
Aug
27
reviewed Approve Show that the continuum of elements $e^{i\lambda t}$ forms a complete orthonormal subset of $B^2$.
Aug
27
reviewed Approve Doubt in raising a power to a complex number
Aug
27
asked Show that the continuum of elements $e^{i\lambda t}$ forms a complete orthonormal subset of $B^2$.
Aug
27
reviewed Approve Conditional expectation of the maximum of two independent random variables, given one of them
Aug
24
comment $\lim_{y \rightarrow b} \lim_{x \rightarrow a} f \neq \lim_{(x,y)\rightarrow (a,b)} f \neq \lim_{x \rightarrow a} \lim_{y \rightarrow b} f$
Oh, ok. Excuse me.
Aug
24
answered $\lim_{y \rightarrow b} \lim_{x \rightarrow a} f \neq \lim_{(x,y)\rightarrow (a,b)} f \neq \lim_{x \rightarrow a} \lim_{y \rightarrow b} f$
Aug
21
reviewed Reject Optimal partitioning of a planar graph
Aug
21
answered How to see that $e^{x(1+x/3)} \le (1+x)^{(1+x)}$ for very small x>0?
Aug
19
reviewed Approve Rotating a RotationTranslation Matrix?