New, unused condition. Although I've taken it out of the package, all the accessories shown in the photos are included. ○ Item TEXAS INSTRUMENTS TI-84 Plus C Silver Edition Scientific Calculator, Graphing Calculator, Calculator 〇 Main Features This is a high-end model of the TI-84 series, featuring a color display. Designed for high school and university students, it is widely used for learning mathematics and science. 1. Color Display • Resolution: 320 x 240 pixels • Backlit for improved visibility • Allows for color-coding of graphs, making it easier to distinguish multiple functions 2. Graphing Functions • 2D graphs (functions, parametric, polar, statistical plots) • Zoom function, graph analysis functions (intersection, differentiation, integration, etc.) 3. Numerical Calculation Functions • Basic arithmetic operations (four arithmetic operations, exponents, logarithms, trigonometric functions, etc.) • Statistical calculations (regression analysis, standard deviation, histograms, etc.) • Matrix calculations (matrix addition, subtraction, multiplication, division, determinant, inverse matrix, etc.) 4. Programming • TI-BASIC programming available (custom functions and script creation) • App support (official and unofficial additional functions can be installed) 5. Hardware • Processor: Zilog Z80 (15MHz) • Memory: 3MB (Flash ROM), 21KB (RAM) • Battery: Rechargeable lithium-ion battery (USB charging supported) 6. Connectivity • USB port (data transfer with PC, software updates possible) • Data sharing with TI-84 Plus series possible