Finance, Energy, Sciences

Data
The 'data' page shows current financial and economic data.
Documents
Here you can find some documents on finance and statistics, such as an introduction to the term structure of interest rates, a paper on a class of term structure models, a few pages on the Kelly criterion and fixed fraction betting for bounded continuous bets, and a writeup of the key results for hidden Markov models (HMM).
Photovoltaics
Calculate return on investment (ROI) of photovoltaic or other alternative energy projects. You can freely specify nominal power, annual yield, financing terms, and other variables. The results are presented in table form and also graphically.