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…

# Going moment-picking

Yesterday, while trying to build a counter-example for a research problem, I started playing with the idea of designing a…

# “Why isn’t it possible to finish a PhD in less than three years?”

The following is from an answer I wrote on Quora. The easiest answer is: “You just can’t cram the research.”…

# Gamma vs Normal KL divergence? Got you covered.

Have you ever searched for a calculation on the Internet and then was disappointed when you couldn’t find it? Yeah,…

# A new semester at UMass Amherst starts tomorrow!

# I’m back!

Hi all, it’s been a while. So, after a long, but not-so-productive break, during which I tried my best to…