Sarah Hong

CS + math @ Columbia

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Why are vectors vertical?

1 minute read

My math professors in college would often intimidate us into writing vectors as vertical, transposing them when convenient, without explaining why. This alwa...

A comprehensive look into the YIN algorithm

23 minute read

For my Numerical Methods course last semester, we had to create a final project on a computational project of some interest to us. We were given the entire l...

A rough introduction to groups

2 minute read

I’m currently taking an abstract algebra course, taught by the amazing but quirky Michael Thaddeus. On the first day of class, he told us that this would be ...

Visualizing the string edit algorithm

4 minute read

For my research with Professor Dennis Shasha from NYU, we’re using the string edit algorithm to compare two ‘strings’, user-notes and midi-notes, to return a...