Reputation
Next tag badge:
98/100 score
37/20 answers
Badges
2 59 167
Newest
 Revival
Impact
~1.4m people reached

Aug
28
revised Let $A$ be an open set of $\mathbb{R}$ and $B$ any set, under what coniditions of $B$, $AB$ is open?
added 59 characters in body
Aug
28
answered Let $A$ be an open set of $\mathbb{R}$ and $B$ any set, under what coniditions of $B$, $AB$ is open?
Aug
28
answered Geometric interpretation of inverse complex function?
Aug
28
comment What is the probability that no two consecutive boxes have blue balls.?
The rules are not completely clear. In your counting all boxes had exactly one ball, but in answering a comment you admitted more than one ball in the same box. How many balls are "filled" into the five boxes in all?
Aug
28
revised define two functions whose compositions are equal to identity
added 317 characters in body
Aug
27
answered Definition of Random Variable on Measure Theory!
Aug
27
answered The complex structure of a complex torus
Aug
27
answered define two functions whose compositions are equal to identity
Aug
27
revised Is $\sin( | z^{2}| )$ ,where z is complex, analytic?
added 95 characters in body
Aug
27
answered Is $\sin( | z^{2}| )$ ,where z is complex, analytic?
Aug
27
answered How do I represent a Mobius Band Triangle Parametrically
Aug
26
comment Line integral and checking its path independence in three dimensions
@PeterKowalski: See my edit.
Aug
26
revised Line integral and checking its path independence in three dimensions
added 285 characters in body
Aug
26
comment Motivation for the Definition of Compact Space
This question has come up many times before. See, e.g., here: math.stackexchange.com/questions/371928/… . It is an "existential" question indeed.
Aug
25
revised Line integral and checking its path independence in three dimensions
added 43 characters in body
Aug
25
revised Line integral and checking its path independence in three dimensions
added 43 characters in body
Aug
25
answered Line integral and checking its path independence in three dimensions
Aug
24
comment Find projection of a point to a ball and box?
"Projection" can be many things. You have to define clearly the geometrical manoeuvres taking place here.
Aug
24
comment Conceptual differences between the notations $\int_{a}^{b}f$ and $\int_{[a,b]}f$
@Chou: This is not "my point of view", but see here: people.math.ethz.ch/~blatter/Analysis_9.pdf (in German). It was amusing for me to learn that Tao in his notes had come almost verbatim to the same explanations.
Aug
24
answered Conceptual differences between the notations $\int_{a}^{b}f$ and $\int_{[a,b]}f$