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visits member for 1 year, 10 months
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1d
awarded  Explainer
Sep
28
reviewed Approve suggested edit on Solve the following limits without L'Hospital's Rule
Sep
19
comment Condition for derivative sequence to converge?
Possible duplicate: math.stackexchange.com/questions/265930/…
Sep
19
reviewed Leave Open Condition for derivative sequence to converge?
Sep
19
reviewed Leave Open How to determine the orbits of points under the tripling map $f(x)=3x\bmod 1$?
Sep
19
reviewed Close Divergence and Convergence — Infinite Series
Sep
19
reviewed Leave Open Coupon Collector's problem with possibility of failure
Sep
17
answered What's the difference between stochastic and random?
Sep
8
reviewed Leave Open applicability of Poisson distribution
Sep
8
reviewed Leave Open Number of bases of $V= \mathbb{F}_p^2$
Sep
7
answered Proving a trigonometric inequality $(1-\sin a)x^2 -2x\cos a + 1+ \sin a \ge 0$
Sep
4
reviewed Close Darth Vader Rule: what is the reason for its name, and a formal proof?
Sep
2
comment A basic measure theory question
@user148951: most of the time, mathematicians are just lazy and don't bother about minimal hypotheses.
Sep
2
comment Definition of Measure of an Interval
Hint. Can you list all elements of $(a,b) \cap \frac{1}{N}\Bbb Z$?
Sep
2
reviewed Approve suggested edit on Prove that $\displaystyle \sum_1^3 x_i^4+\sum_1^3 x_i^6\le?$ when $\displaystyle\sum_1^3 x_i^2=3$
Sep
2
reviewed Close Calculate an integral with $\sin$?
Sep
2
comment Expectation of Square of Stopping Time
@20824: There must be some sign mistake because you find a negative value for $\Bbb E[T^2]$.
Sep
2
awarded  sequences-and-series
Sep
1
reviewed Approve suggested edit on integral over product of two bessel functions at discontinuity
Sep
1
reviewed Reject suggested edit on Generalization of small set/large set