Graphing Calculator

USA - 1990

"First graphics calculator developed for math education that adds a new visual dimension to mathematics instruction; makes it easier to explore functions and understand concepts. Large display has pull-down menus; TI-81 can define, save and graph four functions or three parametric expressions; enter, edit and manipulate three 6 x 6 matrices. Seven built-in zoom features; 4,632 bytes of memory (2,400 bytes reserved for programs. A single keystroke plots selected functions in the viewing rectangle. Performs graphic and numeric analyses of one and two-variable data. SRP $110.00."
Content and photo provided by Texas Instruments,
and published with the permission of Texas Instruments Incorporated.

TI Calculator History