/sci/ - Science & Math

Could anybody please share some linear algebra learning materials?

If a dictator had control of an entire economy of about 1.5 trillion to 2 trillion GDP, and could use a large portion of the profits of the entire industry as well as of the taxes to develop life extension technologies and to extend his life in other ways, how much could he extend his life?

What's the most interesting and addicting scientific hobby?

oooo me too, OP! I want to be /sci/'s test subject too!

I need to explain evolution to my religious friend, but I don't know how to do it properly because I suck at explaining. Could you please summarize evolution in one post, in a sufficient enough detail, including natural selection, mutation, etc etc?

Thanks.

Why do different cultures often have completely different morals? What determines our morality and/or ethics?

Yes, its homework..

If F is defined by
integral of f(x) dx = F(x) + c
show that integral of f(ax+b)dx = 1/a F(ax + b) + c

anyone care to help?