web scraping

ENEM: The Killer Brick Problem

2021-01-08·3278 words·16 mins

Brazilian Exam Problems Python Pint ChemPy web scraping Matplotlib pandas SciPy regex

Is it possible to study for the college entrance exam and still learn Python? Of course! And that is one of the goals of the Brazilian Exam Problems category on this site. In it, we use computational tools to analyze and expand problems from the ENEM, Brazil’s national high school exam. In today’s article, we analyze a problem from the 2019 exam. And, along the way, we learn to make 3D and 4D(?!) plots with Matplotlib. All because of a killer brick.

Studying Our Atmosphere with Python

2020-12-05·3676 words·18 mins

Science Python Pint ChemPy web scraping Matplotlib pandas SciPy regex

Colorless, made of invisible constituents, and odorless (we hope!). We often forget that we are surrounded by the gases that make up our atmosphere. In this article, we will see how to easily get a list of the main constituents of air with Python and web scraping. We will also do some calculations, such as density and mean molar mass, and, of course, present everything in spectacular plots.

↑