 ChemEng Economics Calculator. Calculate Your Profits. — ChemEng Economics Calculator is a tool used for doing the basic method of estimating the Net Present Value of a process plant. ChemEng Economics Calculator has a variety of quite useful features. It goes through a series of calculations to find the estimate. First of all, with ChemEng Economics Calculator you can choose from…
 Judy's TenKey: New Life to Good Old Calculator — The «great» news about having a free calculator builtin our Windows system doesn’t make us excited. No wonder — what it can do, the majority of us can calculate in our head. And making any reallife calculations is totally beyond its capacities; for making those calculations, we need to buy more sophisticated…
