MODEL- TI30XA VENDOR- TEXAS INSTRUMENTS FEATURES- Scientific Calcualtor This model is a solid solution for general math, algebra, trigonometry, and statistics. Ten-digit display Fraction features: Adds, subtracts, multiplies, and divides fractions entered in traditional numerator/denominator format. One-variable statistics Conversions: Fractions/Decimals Degrees/Radians/Grads DMS/Decimal/Degrees Polar/rectangular conversion Basic scientific and trigonometric functions * Battery powered * Adds, subtracts, multiplies, and divides fractions entered in traditional numerator/denominator format * Performs trigonometric functions, logarithms, roots, powers, reciprocals, and factorials * Polar/rectangular conversions * One-variable statistics include results for mean and standard deviation * Slide case and quick reference card included * Displays 10 digits and 12 calculating digits * 3 Memories * Batteries included: 2 B/C (A76) * Automatic Power Down * Fixed decimal option * Scientific Notation (10+2) * 15 levels of parentheses * 4 pending operations * LOG, 10 to the x, ln, e to the x, * x squared, sq. root of x, y to the x power, 1/x, x!, x root of y, % * Fractions * Trigonometry * Sin, Cos, Tan, and Inverses * Hyperbolic Functions * Degrees/Radians/Grads (DRG) * DRG Conversions * Science: DMS <> DD, P <>R * 0.8 x 3.1 x 6.0 in * Weighs 0.3 lbs.