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Aug
7
reviewed Approve suggested edit on Proof of trigonometric identity $\cot \theta \sec\theta= 1/ \sin\theta$
Aug
7
comment Who are some blind or otherwise disabled mathematicians who have made important contributions to mathematics?
Euler became blind later in life and his Wikipedia article suggests he may have sped up his productivity after that with the help of scribes.
Jul
2
awarded  Curious
Jun
7
reviewed Approve suggested edit on What properties does a graph G which does not have a triangle free euler circuit have?
May
22
answered Notation in Actuarial text
Apr
25
awarded  Notable Question
Apr
19
reviewed Approve suggested edit on How do I find the polynomial degree of f?
Apr
5
awarded  Good Answer
Mar
24
awarded  Yearling
Mar
23
reviewed Approve suggested edit on How to find perpendicular vector to another vector?
Mar
18
awarded  Popular Question
Jan
22
awarded  Nice Answer
Jan
12
comment Existence of an orthogonal matrix that converts $AB$ to $BA$
I don't see any question at all.
Jan
4
comment How should I denote “undefined” in a functions definition
This is a standard theorem in every calculus book. If you are taking the limit as $x \to a$ of two functions that are exactly the same except at one point $b$ (which could be $a$ or not $a$), and if the limit of one of the two functions exists and is $L$, then you automatically know that the limit of the other function exists and is also $L$.
Jan
4
answered How should I denote “undefined” in a functions definition
Dec
26
reviewed Reject suggested edit on Road and candidiate problem
Nov
11
answered Poisson Process Basic Question
Oct
25
comment Calculate area between two curve
Yea, do you think we can guess the function just from your graph? You're going to need to give more information.
Oct
14
answered Joint Cumulative Distribution Function for $X\sim \exp( \lambda)$ and $Y=X^3$
Oct
13
awarded  Popular Question