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clathratus

17,161
reputation
  • San Francisco, CA, USA
  • Member since August 10 2018
  • 2999 profile views
  • Last seen Apr 06 '24 at 14:21

My name is Liz (she/her). I'm a math major at UC San Diego. I love integrals, infinite series, and number theory. Here's a list of my favorite posts.

Questions:

  • Freaky dots in the complex plane
  • A Crazy Infinite Product
  • One of the worst integrals ever
  • A magnificent series for $\pi-333/106$

Answers:

  • How to integrate $\int_{0}^{2\pi} \frac{1}{\sin^4x + \cos^4 x} dx$
  • Show that $\int_{0}^{\pi/4}\int_{0}^{\pi/4}\left(\sec(x+y)+\sec(x-y)\right)\mathrm{d}x\mathrm{d}y=2G$
  • List of integrals or series for Gieseking's constant $\rm{Cl}_2\big(\tfrac{\pi}3\big)$?
  • Generalizing $\sum\limits_{m\geq1}\sum\limits_{n\geq1}\frac{(-1)^n}{n^3}\sin(n/m^{2k})=\frac1{12}\zeta(6k)-\frac{\pi^2}{12}\zeta(2k)$
  • Evaluating $\int_{0}^{2 \pi} \frac{\sin(\phi)}{(\sin(\theta)-\sin(\phi))^2+2a(1-\cos(\theta -\phi))} d\phi$
  • Unexpected appearances of $\pi^2 /~6$.