If you're looking for books, have a look at Schaum's Outline of Precalculus [0]. Khan Academy [1] is also good and there's this MOOC on coursera called Data Sci

If you're looking for books, have a look at Schaum's Outline of Precalculus [0]. Khan Academy [1] is also good and there's this MOOC on coursera called Data Science Math Skills [2]. [0] https://www.amazon.com/Schaums-Outline-Precalculus-3rd-Problems/dp/0071795596 https://www.amazon.com/Schaums-Outline-Precalculus-3rd-Probl... [1] https://www.khanacademy.org/math https://www.khanacademy.org/math [2] https://www.coursera.org/learn/datasciencemathskills https://www.coursera.org/learn/datasciencemathskills