# Mike

less info
reputation
532
bio website location age 21 member for 2 years, 5 months seen Dec 16 at 19:46 profile views 299

 Aug20 answered Popular math books with depth Aug20 comment Popular math books with depth @Iyengar If you loved Fearless Symmetry, then you should read Symmetry and the Monster by Mark Ronan amazon.com/Symmetry-Monster-Greatest-Quests-Mathematics/dp/… Aug19 accepted Finding $F(x)$ so that $F'(x) = e^{-x^2}$ Aug19 comment Finding $F(x)$ so that $F'(x) = e^{-x^2}$ Good point @Micah Aug19 revised Finding $F(x)$ so that $F'(x) = e^{-x^2}$ added 158 characters in body Aug19 comment Finding $F(x)$ so that $F'(x) = e^{-x^2}$ I see. Examining the graph of $\exp(-x^2)$ I see that $f'(0)$ is indeed $0$ but did you surmise this a different way? Aug19 comment Finding $F(x)$ so that $F'(x) = e^{-x^2}$ Yes you are right. Thank you Aug19 asked Finding $F(x)$ so that $F'(x) = e^{-x^2}$ Aug19 revised If $\exp(itH) A \exp(-itH) = A$ for all $t$, do $A$ and $H$ commute? Finicky. Just put the title into LaTeX and put "for all t" into "for all $t$" Aug19 suggested approved edit on If $\exp(itH) A \exp(-itH) = A$ for all $t$, do $A$ and $H$ commute? Aug19 awarded Critic Aug19 accepted $|P(x)|$ differentiable at a root $x_0$ Aug19 accepted Proving a Riemann integral theorem Aug19 accepted Proving an Integral Theorem Aug19 asked $|P(x)|$ differentiable at a root $x_0$ Aug18 comment “So That” vs. “Such That” Sorry about that, I left my computer and hadn't come back to accept it yet because when I posted that it said I had to wait 45 minutes Aug18 accepted “So That” vs. “Such That” Aug18 awarded Self-Learner Aug18 comment Proving an Integral Theorem I see now. So the middle quantity is bounded by $m, M$ and $f$ must take the value of some $c$ so that $f(c) \in [m,M]$, and so this necessarily means that $c\in [a,b]$? Aug18 revised Proving an Integral Theorem deleted 2 characters in body