# Some old math videos

This set of videos were created using Theano (just for the optimization of computations) for a small talk on PDEs on curved spaces.

This set of videos were created using Theano (just for the optimization of computations) for a small talk on PDEs on curved spaces.

I just want to explore a simple and meaningles question: Does BERT encode the length of a sentence in the norm of its **[CLS]** embedding?

`sympy`

is a great tool for symbolic computations developed in Python. It has a module for differential geometry that allows you to compute some of the important objects as the Christoffel symbols and curvature objects. I wanted to give it a try and I created a jupyter notebook with a simple test using the Schwarzschild metric and numerically computing some geodesics.

Que buen idioma el mío, qué buena lengua heredamos de los conquistadores torvos…