CCalculoryGR-840CE Graphing
HOMERADIAN

Ready. Type an expression and press Enter to evaluate.

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Tips and supported functions

Supports +, -, *, /, parentheses, ^, sqrt(), cbrt(), abs(), log() (base 10), ln(), sin(), cos(), tan() (and inverse asin/acos/atan), sinh/cosh/tanh, factorial (!), nPr() and nCr(), pi, e, percent (%), and Ans for the last result. Use the "Save to M" button below to manage memory.

Independent educational simulator. Brand-safe TI-84 Plus CE-style design.

Independent educational simulator. Not affiliated with or endorsed by Texas Instruments or any other calculator manufacturer.

TI-84 Plus CE Calculator Online

Plot up to six functions on a graph, generate x and y tables, run statistics and regressions, work with matrices, and solve equations with our free graphing calculator simulator. Familiar workflow. Instant results.

  • Graphing
  • Tables
  • Statistics
  • Regression
  • Matrices
  • Free Online Tool

Plot up to six functions

Color-coded Y= editor

Y1 through Y6 share the same window with toggleable visibility and per-graph color.

Familiar workflow

Y=, Window, Graph, Table, Stat

Mode keys mirror the layout of a TI-84 Plus CE so muscle memory transfers from class.

Fast and Mobile Friendly

Runs instantly in your browser, no install required. Fullscreen mode included for mobile.

Built for students preparing for algebra, pre-calculus, statistics, and the SAT.

No sign-up required 100% Free to use Private and secure

Quick Start

Plot a function and read a table in four steps with the quick start guide.

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Popular Modes

Y= editor, Graph, Table, Stat, Regression, Matrix, and Solver in one tool.

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Model Comparison

Compare popular graphing calculator models and pick the right physical device.

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FAQs

Answers to common questions about graphing, regressions, and matrices.

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Quick Start

Four steps to graph a function and read its table on the simulator, the same workflow you use on a TI-84 Plus CE in class.

  1. 1

    Open the Y= editor

    Press the Y= mode key at the top of the device. Type a function of x into Y1, like sin(x), x^2 - 4, or 2x + 1. The editor flags syntax errors before you graph.

  2. 2

    Set the window

    Press Window to open the Xmin, Xmax, Ymin, Ymax inputs. Most algebra problems work with the standard window from -10 to 10 on both axes (the default).

  3. 3

    Press Graph

    Press Graph to plot the visible Y functions on the same axes. Use the zoom buttons to zoom in or out, and click on a curve to drop the trace cursor.

  4. 4

    Read the table

    Press Table to print the x and y pairs at the active table start and table step. Use the Copy button to paste the full list into a spreadsheet for follow-up analysis.

Model Comparison

Common graphing calculator models and how the Calculory simulator compares. Use this table to pick the physical device that matches your exam board if you also need an approved hardware calculator.

Model styleGraphingColor screenAppsNotes
Calculory TI-84-style (this simulator)YesYesNoFree, runs in any browser, full keyboard support and fullscreen mobile mode.
TI-84 Plus CE styleYesYesYesMost common US classroom graphing calculator with rechargeable battery.
TI-84 Plus style (older)YesNoYesBlack-and-white screen, AAA batteries, lower price than the CE.
TI-Nspire CX II styleYesYesYesDocument-based interface with computer-algebra-system features on the CAS variant.
Casio fx-CG50 styleYesYesYesCasio equivalent of the TI-84 CE, popular in the UK and Europe.

Brand and model names are referenced for descriptive comparison only. Calculory is independent and not affiliated with Texas Instruments, Casio, Sharp, or any other calculator manufacturer.

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Review and Methodology

Updated May 9, 2026

This calculator runs locally in your browser. Inputs are converted into the units required by the formula, and the result is paired with supporting references so you can verify the method before using it for planning or estimates.

Worked Example

1Step 1: Open Y= mode and enter Y1 = sin(x)
2Step 2: Open Window and set Xmin = -10, Xmax = 10, Ymin = -2, Ymax = 2
3Step 3: Press Graph to plot the curve
4Step 4: Press Table to see x and y pairs at every step
Result: a sine wave between -10 and 10 with values between -1 and 1
The same workflow plots quadratics, exponentials, and logarithms by changing the function on Y1.

About this TI-84 Plus CE-style graphing calculator simulator

This simulator brings the most-used parts of a graphing calculator to the browser. The Y= editor stores up to six functions that share one graph window. The Graph mode draws each visible function with its own color, axes, grid, and a trace cursor that reads off coordinates. Table mode prints x and y pairs at any starting point and step. Stat mode handles 1-variable and 2-variable summaries on lists, Regression fits linear and quadratic models with correlation, Matrix supports 2 by 2 and 3 by 3 matrix arithmetic with determinants and inverses, and Solver handles quadratic, cubic, and simultaneous-equation problems.

  • Y= editor for up to six functions with color, visibility toggle, and live syntax validation
  • Canvas graph with axes, grid, zoom in, zoom out, reset, and a trace cursor that snaps to each plotted curve
  • Table mode with table start, table step, and one-click copy of the full x and y list
  • Stat mode with editable L1 and L2 lists plus 1-variable and 2-variable summary statistics
  • Linear and quadratic regression with correlation r, coefficient of determination r squared, and a scatter plot
  • Matrix mode supporting 2 by 2 and 3 by 3 addition, subtraction, multiplication, determinant, inverse, and transpose
  • Solver for quadratic, cubic, 2 by 2 and 3 by 3 simultaneous equations with real and complex roots
  • Mobile fullscreen mode and full keyboard support on desktop, including arrow keys and Enter

It is an independent educational tool. It is not affiliated with, endorsed by, or sponsored by Texas Instruments. Use it for revision, homework, and exam practice, then sit your exam with the physical calculator your exam board approves.

You can also calculate changes using our Casio-Style Scientific Calculator, Scientific Calculator, Algebra Graphing Calculator or 3D Graphing Calculator.

Frequently Asked Questions

Is this an official Texas Instruments calculator?

No. This is an independent educational simulator built by Calculory. It is not affiliated with, endorsed by, or sponsored by Texas Instruments. The simulator recreates a familiar graphing-calculator workflow for practice and revision, not the official TI-84 Plus CE operating system.

What graphing calculator features are included?

You get a Y= editor for up to six functions, a graph with axes, grid, zoom controls, and a trace cursor, a Table generator with start and step, 1-variable and 2-variable statistics, linear and quadratic regression with a scatter plot, 2 by 2 and 3 by 3 matrix arithmetic, and a solver for quadratic, cubic, and simultaneous equations.

How do I graph an equation on this simulator?

Open Y= mode, type a function of x like sin(x), x^2, or 2x + 1 into Y1, then switch to Graph mode. Use the zoom buttons or the Window panel to set Xmin, Xmax, Ymin, and Ymax. Toggle the visibility checkbox to hide a function without deleting it.

How do I use the table mode?

Pick a function from the Y= editor, switch to Table mode, set the table start (the first x value) and the table step (the x increment), and the simulator prints the full x and y list. Use the Copy button to paste the table into a spreadsheet.

Can I run regressions and a scatter plot?

Yes. Enter your data in L1 and L2 in Stat mode, then open Regression mode. Pick linear or quadratic, and the simulator returns the model coefficients, correlation r, and r squared, and renders a scatter plot with the fit line drawn over it.

Does the simulator support matrices?

Yes. Matrix mode handles 2 by 2 and 3 by 3 matrices, with addition, subtraction, multiplication in either direction, determinant, inverse, and transpose. Switch between matrix A and matrix B with the sub-tabs at the top of the panel.

How is the equation solver different from regression?

Regression fits a model to noisy data. The solver finds exact roots: quadratic by formula, cubic by Cardano or trigonometric method, and 2 by 2 or 3 by 3 simultaneous systems by Cramer rule. Use regression when you have data points; use the solver when you have an equation.

Can I drive the simulator with my keyboard?

Yes. After you click once on the simulator, the keyboard digits, operators, parentheses, Enter, Backspace, Escape, and arrow keys all work. Function keys map to the calculator mode keys at the top of the device.

Is the simulator free?

Yes. Calculory simulators are free, run in your browser, and do not require sign up. There are no usage limits and no ads on the calculator screen itself.

Is it possible to embed the TI-84 Plus CE Calculator Online on another website?

Yes, embedding the TI-84 Plus CE Calculator Online is free. Hit the "Embed" button on this page, adjust the width, height, and theme, then grab the iframe code. It works on WordPress, Wix, Squarespace, Shopify, and plain HTML pages. No registration needed. Full instructions at calculory.com/services/embed-calculators.

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