Going to share this again.
In Black Panther 19 (2005-2008) he is on honeymoon with Storm and relaxing on the beach reading a book.
Turns out it's a Matlab manual. This is the code he's reading:
http://www.ece.northwestern.edu/local-apps/matlabhelp/techdoc/math_anal/diffeq8.html#648608
Even superheroes need to brush up their data science