This compact BA II Plus Professional by Texas Instruments is your help for financial questions. Quickly calculate cash flows, money transfers, mortgages, NPVs, and IRRs. You can also easily perform various statistical and mathematical calculations, such as involutions, natural logarithms, and goniometric calculations. The main difference with the TI BA II plus are the extra calculations that the Professional can do, such as Net Future Value and Internal Rate of Return. The Texas Instruments BA II Plus saves you time, so you can focus on other matters that require your financial knowledge.