TI-89 Titanium-style calculator

Start with the problem, not the keys

Open Solve a problem / examples. Choose a quadratic or linear equation, a pair of linear equations, summary statistics, a derivative at a point, or a definite integral. Labeled inputs and examples guide you; Solve & save answer adds the complete task to history. Comparison and exports use that same answer. Graph examples include a parabola, a sine wave in radians and exponential growth.

Graph and analyze a function

Enter a function of x on the Home line, then press GRAPH. WINDOW opens the graph bounds, TABLE builds a value table and TRACE moves along the curve. MODE switches between degrees and radians.

Numeric calculus tools

d/dx opens a labeled input for the derivative point. The integral key opens separate lower and upper bounds; these are independent of the graph window. These are numerical approximations; tighten the window around the interval you want to study and confirm important work independently.

Based on the familiar TI-89 Titanium workflow

The compact key order follows the supplied TI-89 Titanium button reference and this TI-89 Titanium tutorial video. Texas Instruments describes its original calculator’s graphing, table, equation-analysis and CAS features on the official TI-89 Titanium product page.

This independent web calculator provides numeric graphing and calculus tools; it is not a TI ROM emulator and does not reproduce the handheld’s full symbolic CAS, 3D graphing, apps, programming, matrices or exam behavior. TI-89 Titanium and Texas Instruments are trademarks of their respective owner; no affiliation or endorsement is claimed.