Omnomnomnom

United States

http://drexel.edu/math/contact/ta-ra/BenjaminGrossmann/

I am pursuing a PhD in mathematics at Drexel university in Philadelphia, PA. I started my Teaching assistantship in fall 2013. My area of research is matrix analysis.

I'm here because I enjoy being a part of the MSE community, and because whether you're asking or answering, you can never get enough practice with math problems.

• A graph-theory approach to the Erdos-Szekeres theorem
• Explaining the transcendental numbers
• Numerical-methods to determine the propagation of lightning
• A quick linear algebra chestnut
• On the importance of counterexamples
• A trick I keep reusing
• A crazy determinant computation
• Matrix norms

• $\int_{-1}^1\frac1x\sqrt{\frac{1+x}{1-x}}\ln\left(\frac{2\,x^2+2\,x+1}{2\,x^2-2\,x+1}\right)\ \mathrm dx$; a feat of mathematical wizardry
• A classic result from different approaches
• Apparent patterns that eventually fail
• Bad math that gets away with it; great for a few good laughs
• Some great math puzzles

• MathJax tutorial and quick-reference
• How to ask a good question
• Sandbox
Top Questions

How was the first log table put together?

asked Sep 5 '13 at 17:07

Prove that if $A$ is normal, then eigenvectors corresponding to distinct eigenvalues are necessarily orthogonal (alternative proof)

asked May 2 '14 at 22:13

Prove that if positive-definite $f$ is continuous at $0$, it is continuous on $\mathbb{R}$

asked Nov 17 '13 at 6:23