Texas Instruments TI-89 Graphing Calculator CAS Black Advanced Math NO COVER

Texas Instruments TI-89 Graphing Calculator features a powerful Computer Algebra System (CAS) for advanced mathematics, engineering, and science. WORKS Brand: Texas Instruments Model: TI-89 Type: Graphing Calculator Power Source: 4 AAA Batteries Display: Monochrome LCD Resolution: 100 x 160 pixels Memory: 188 KB RAM, 384 KB Flash ROM Features: CAS (Computer Algebra System) Functionality: 3D Graphing, Symbolic Manipulation Keypad: Alphanumeric Connectivity: I/O Port Color: Black/Dark Gray Year: 1998 Dimensions: Approx 7.5" x 3.5" Keywords: STEM, engineering student, calculus, physics, SAT prep, AP exams, college math, vintage electronics, retro tech, math tool, handheld computer, programmable, symbolic algebra, 90s tech Keywords: STEM, engineering, calculus, physics, SAT, AP, college, vintage, retro, math, handheld, programmable, symbolic, algebra, 90s, electronics, TI89, graphing, CAS, student, university, high school, scientific, technical, computation