User Portlet

I have been a secondary Maths teacher for 30 years. I am retired and I am preparing to restudy in 2 years time. I am going to do a double Maths/ Physics degree that will take 8 years parttime ..I want to learn Mathematica. I have no choice but to also learn MathLab and Python . II have copy of Stephen's cellular automata book from 20 years ago. I was fascinated the language and Stephens resounding creativity.