Euler....IS_ALIVE

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May 6	comment	A question about an expoential function But you can truncate this and bound the error.
May 5	answered	A question about an expoential function
Apr 22	comment	Does $g$ behave like $t^k$ near the origin? @vadim123 I don't think it's just as easy as that...
Apr 17	comment	Old Qualifying Exam Problem topology Homeomorphic spaces with the conditions as above have isomorphic compactifications.
Apr 15	accepted	Difference of powers inequality
Apr 12	answered	Your favourite application of the Baire category theorem
Apr 12	comment	Euler's formula and subgroups of $\mathbb Z_n$ Isn't this exactly the decomposition formula?
Apr 11	comment	Uniform convergence in the Poisson equation… This is an excellent answer and should have more upvotes
Apr 10	comment	general topology exercise 777 Did you solve the first 776 exercises?
Apr 10	revised	How do we solve $ (e^{x^2/4} f'(x))' = e^{x^2/4} f(x)$? — SOLVED edited body
Apr 10	comment	How do we solve $ (e^{x^2/4} f'(x))' = e^{x^2/4} f(x)$? — SOLVED Oops ya, should be a minus sign, but the question has been edited anyways, so this answer seems to no longer be valid?
Apr 10	answered	How do we solve $ (e^{x^2/4} f'(x))' = e^{x^2/4} f(x)$? — SOLVED
Apr 10	comment	Why the integral of $e^{-x}\;$ is $\;-e^{-x}$, and not $e^{-x}$? Answer: Chain rule.
Apr 10	answered	*Orthogonal Latin Square 66**
Apr 10	answered	Im have trouble with this question.
Apr 10	comment	Canonical Decomposition of Functions What have you tried so far?
Apr 10	answered	Give an example of positive interegers p,a and b where p divides ab ,but p doesnt divide a, and p doesnt divide b.
Apr 10	comment	What are some general approaches to proving smoothness? Continuous and monotone is certainly not enough to prove smoothness. I think you have to give some more information about your functions.
Apr 9	awarded	Nice Question
Apr 9	comment	How $\frac{dx}{dy}=f(x)g(y) \Leftrightarrow \int \frac{dx}{f(x)} = \int g(y)dy$? Hmm. Well, such a quantity has meaning in differential geometry. For the intro class, it's just a technique to solve. By uniqueness (sometimes), it doesn't matter $\textit{how}$ you got the solution.