TI-84 Calculator Guides & Tutorials

Welcome to the ti84calculato.com guide library. Whether you are using our free online TI-84 calculator or a physical device, these step-by-step tutorials will help you master every feature — from basic graphing to advanced statistics and calculus. Each guide includes clear steps, screenshots, and examples based on real math problems.

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How to Graph on TI-84
Learn how to enter functions, adjust the window, trace intersections, and analyze graphs on the TI-84 calculator.
Beginner
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How to Reset TI-84 Calculator
Step-by-step guide to RAM reset, memory clear, and factory reset on TI-84 Plus and TI-84 Plus CE.
Beginner
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How to Find Z-Score on TI-84
Calculate z-scores, find probabilities, and use normalcdf and invNorm functions on the TI-84 calculator.
Intermediate
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Standard Deviation on TI-84
Enter data lists and compute standard deviation (σx and Sx) using the 1-Var Stats function step by step.
Beginner
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Linear Regression on TI-84
Run LinReg(ax+b) on your TI-84 to find the line of best fit, correlation coefficient (r), and r-squared value.
Intermediate
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Derivatives & Integrals on TI-84
Use nDeriv() and fnInt() to compute numerical derivatives and definite integrals on the TI-84 calculator.
Advanced
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Matrix Operations on TI-84
Enter matrices, perform multiplication, find determinants and inverse matrices using the MATRIX menu.
Intermediate
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TI-84 vs TI-83: Full Comparison
A detailed comparison of the TI-84 Plus CE and TI-83 Plus — specs, features, exam compatibility, and price.
Info
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TI-84 Plus CE Complete Review
Everything you need to know about the TI-84 Plus CE — features, pros, cons, and who should buy it in 2025.
Info
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How to Download Games on TI-84
Install Tetris, Mario, and other games on your TI-84 calculator using TI Connect CE. Full step-by-step guide.
Intermediate
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How to Use Our TI-84 Guides

Each guide on this page is written specifically for students using the TI-84 Plus or TI-84 Plus CE — whether you have a physical device or you're using our free online simulator. The instructions are identical because the operating system is the same. Start with the Beginner guides if you're new to graphing calculators, then move to Intermediate for stats and regression, and Advanced for calculus.

Every guide is built around a real example problem, so you can follow along step-by-step. Pair the tutorials with our online TI-84 calculator open in another tab — that way you can practice each keystroke as you read.

Most Popular TI-84 Calculator Functions

Based on student traffic, the five most-searched TI-84 functions are: 1-Var Stats (for finding mean and standard deviation), LinReg (for linear regression), nDeriv (for numerical derivatives), normalcdf (for normal distribution probabilities), and solver (for finding equation roots). If you only learn five TI-84 commands, learn these — they cover the majority of homework problems in algebra, statistics, and calculus.