dreamcalc professional is a virtual scientific, graphing and financial calculator. you get the intuitive feel of using a real hand-held calculator on your pc or laptop! with dreamcalc, you'll be able to graph functions and plot list data more simply than ever before. in fact, it is a match for many dedicated graphing packages, but far easier to use. select from reverse polish notation or two styles of algebraic input, and with the optional ability to run in your windows system tray--dreamcalc will always be there whenever you need to reach for a calculator. dreamcalc also offers you a full range of scientific functions, statistics, complex numbers, base-n logic, unit conversions, built-in constants and a powerful polynomial solver. because it is software, it allows you to exchange your results, graphs and lists with your other applications . financial features: loan amortization, discounted cashflow calculations (inc. npv, mirr, irr & roi), bond price & ytm, tvm compound interest registers, depreciation (sl, db & soyd), cashflow charts, date calculations (inc. act/act, 30/360, 30e/360, week nos. etc.), us, european & canadian annual rates.