The TI-83 Plus is an easy-to-use graphing calculator for math and science. Ideal for algebra through pre-calculus, plus powerful statistics and finance features. Offers flash technology to upgrade. Financial functions include TVM, cash flows, amortization, and complex numbers. Enhanced data analysis includes logistic and sine regressions. Graphs 10 rectangular functions, six parametric expressions, six polar expressions, and three recursively defined sequences. I/O port with unit-to-unit link cable (included). Offers large 64 x 96 pixel, 8 x 16 display; 24KB of RAM; and 160KB Flash ROM memory for data archive and storage of Apps. Applications can be computer stored for later use or linked unit-to-unit. Calculator is powered by included four AAA batteries with a lithium battery backup to protect RAM memory during main battery change.General Information Manufacturer: Texas Instruments, Inc Manufacturer Part Number: TI-83PLUS Brand Name: Texas Instruments Product Model: TI-83 Plus Product Name: TI83 Plus Graphing Calculator Packaged Quantity: 1 Each Product Type: Graphing Calculator Technical Information Operations/Functionality: Time & ValueCash flowAmortizationInterest Rate ConversionBusiness EquationRectangular EquationPolar EquationParametric EquationBinaryHyperbolicTrigonometryLogarithmMatrixSimultaneous EquationBoolean Logic Calculator Features: Battery Backup Memory Memory Capacity: 24 KB, 160 KB Memory Type: RAM, ROM Display & Graphics Number of Display Lines: 8 Number of Display Digits: 16 Display Screen Type: LCD Display Resolution: 64 x 96 Battery Information Power Source: Battery Number of Batteries: 4 Battery Size Supported: AAA Physical Characteristics Color Family: Black Product Color: Black Height: 7.3" Width: 3.5" Depth: 1" Miscellaneous Package Contents: TI-83PLUS Programmable Graphing CalculatorUnit-to-Unit Link Cable4 x AAA Batteries Recycled: No Assembly Required: No Country of Origin: Philippines