I have a degree in computer science and I wanted to do another degree in economics.
However, my maths have been weak since high school always scoring slightly above passing rate. During my course of study in computer science I have score 60 marks for my maths module (which covers probability, differential equations, mainly on discrete maths topic).
I would like to revisit my high-school and undergrad maths module to prepare myself.
I have found some free online learning materials at: http://rutherglen.science.mq.edu.au/wchen/ln.html
What are the modules should I revisit to improve on my foundations?