I second this. I've always struggled with maths at this (relatively simple) level. However seeing the code and then the related equation is teaching me mathema

I second this. I've always struggled with maths at this (relatively simple) level. However seeing the code and then the related equation is teaching me mathematics that I couldn't grok in school 20 years ago. This is (for me) a much better way to explain it! Thank you for sharing.