I've been using openstax[1] to learn math prerequisites for a CS program. They have peer-reviewed, openly licensed textbooks[2] on many college courses. [1] ht

I've been using openstax[1] to learn math prerequisites for a CS program. They have peer-reviewed, openly licensed textbooks[2] on many college courses. [1] https://openstax.org/ https://openstax.org/ [2] https://en.wikipedia.org/wiki/OpenStax https://en.wikipedia.org/wiki/OpenStax