Hi, I'm Obrad from Serbia. I'm an architect and I want to learn python so I can start making tools for my work, never managed to learn programming as a standalone thing. Very interested in how this all works :)

@Victor Stepanov Hi, thanks! I'd like to learn how to 'draw' a rhombus by doing things with vectors. Forgot if it's adding or multiplication, but that's something I can use. Going through the basics first of course. I have to ask how come this is free?