EC-449 (650-0925) Features Faxback Doc. # 6463 The EC-449 Scientific Calculator uses the latest in scientific technology making it one of the most complete and compact calculators available. It can help you solve problems in anything from the basic functions of addition, subtraction, multiplication, and division to the more complex functions of trigonometry, hyperbolics, logarithms, or statistics. You can enter mathematic operations using up to 18 parentheses at six levels. Then using algebraic logic, the calculator automatically determines which mathematic operation to perform first. Its specially designed 8-digit liquid-crystal display is easy to read in changing or poor lighting conditions. The handy size lets you carry it wherever you go. Its features include: Algebraic Operation - Lets you enter calculations exactly as they are written. Full-Feature Display - Displays an eight-digit mantissa with sign and a two-digit exponent with sign. Extra Wide Range of Calculation - Allows calculations within the range of 10 to the power of 99 to 10 to the power of -99. Conversion Functions - Helps you convert fractions to decimals; degrees/hours, minutes, and seconds to decimal format and back; and polar-to-rectangular and rectangular- to-polar coordinates. Trigonometric and Hyperbolic Functions - Performs trigonometric and hyperbolic functions using degree, radian, or gradient as the basic unit. Logarithmic Functions - Provides quick access to log base- 10 and natural logarithm (base-e). Statistical Functions - Lets you calculate arithmetic mean, sample and population standard deviations, and sum of values. Independent Accumulating Memory - Lets you temporarily store, add to, and subtract from your calculations. Rugged Plastic Case - Helps protect the calculator from rough handling. (BR/all-06/06/94)