Financial calculator 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 TI-89 Titanium, Hewlett Packard HP-48GII,
Calculator "scientific" pocket-sized calculator the "B3-18" was completed by the end of 1975. In 1973, Texas Instruments (TI) introduced the SR-10, ("SR" signifying slide rule) an "algebraic entry" pocket calculator using scientific notation for $150. Shortly after the SR-11 featured an added key for entering Pi (π). It was followed the next year by the SR-50 which added log and trig functions to compete with the HP-35, and in 1977 the mass-marketed TI-30 line which is still produced. In 1978 a new company, Calculated Industries arose which focused on specialized markets. Their first calculator, the Loan Arranger (1978) was a pocket