Flounderer

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Fun but serious mathematics books to gift advanced undergraduates.

Dec 25, 2012

Jigsaw Puzzle Help

Sep 1, 2013

Meaning of the identity $\det(A+B)+\text{tr}(AB) = \det(A)+\det(B) + \text{tr}(A)\text{tr}(B)$ (in dimension $2$)

May 5, 2015

Does "Big Data" Have a Ramsey Theory Problem?

Oct 20, 2013

What's the last step in this proof of the uniqueness of equalizers?

Jan 16, 2014

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Can I use my powers for good?

Oct 12, 2011

Action of dihedral group on polynomials on the plane

Jul 15, 2011

How does a number correspond to a sound when listening to an OEIS sequence?

Jul 17, 2015

Looking for a particular advanced high school book; forgot author and title

Mar 12, 2021

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