I don't know whether this question is in order here. I do a bit of teaching and I am preparing my own notes but I thought that his should not be necessary.
In which book/pdf on the web can we find a basic but rigorous treatment of the notions
- return (log,geometric)
- expected return (arithmetic/geometric)
- volatility (annualizing, ...)
- Sharpe ratio
- maybe more (e.g. draw down)
both in the case of one asset and in the portfolio setting (where matrix algebra can be applied).
I would love to have this one paper from the net that containes this short intro. It would answer 10% of the questions posted here too.
If it is not on the web - let us write it ;)