A friend asked the following question: Describe the contrast between the abstract and the concrete [in mathematics], citing examples. Some…

# “You and your research”

I recommend this great lecture! So many good points about research in there.

# Academia, Love Me Back

Originally posted on TIFFANY MARTÍNEZ:

My name is Tiffany Martínez. As a McNair Fellow and student scholar, I’ve presented at national…

# At what point does mathematics get hard?

https://www.quora.com/At-what-point-does-mathematics-get-hard There is a point where math gets hard for anybody and everybody. For some it’s high school, for others…

# Rank of centered data

Consider a matrix . In general, this matrix has rank Now, suppose we wish to column-center the data. We can…

# Why am I good at mind calculations but bad at problem solving?

From: https://www.quora.com/Why-am-I-good-at-mind-calculations-but-bad-at-problem-solving I have this friend who is great at cutting vegetables. You give her whatever you want, she can…

# But moment picking is tricky too.

This is the second part of the story that I started with the previous post. Wanting to build a quick…