Financial calculator etc includes complex financial calculations. Financial calculator A financial calculator or business calculator is an electronic calculator that performs financial functions commonly needed in business and commerce communities (simple interest, compound interest, cash flow, amortization, conversion, cost/sell/margin, etc). It has standalone keys for many financial calculations and functions, making such calculations more direct than on standard calculators. It may be user programmable, allowing the user to add functions that the manufacturer has not provided by default. Examples of financial calculators are the HP 12C, HP-10B and the TI BA II. Wide number of graphics calculators like Casio fx-9860GII, Texas Instruments
QAMA Calculator QAMA Calculator The QAMA Calculator is a calculator that requires users to provide a reasonable estimate of the answer before the precise answer is delivered. QAMA stands for Quick Approximate Mental Arithmetic. Invented by Ilan Samson, it aims to get users to think first by estimating before they get the correct answer. Estimation is seen by many as an essential part of mathematics, and some believe that the presence and popularity of calculators could inhibit the use of estimation skills. A physical version of the calculator was released for sale in 2014, with apps for smartphones and tablets developed in