TI-84 Calculator Online - Free Graphing Calculator Simulator (TI-84 Plus CE)
The free TI-84 calculator online is a full-featured Texas Instruments TI-84 Plus CE graphing calculator simulator that runs entirely in your browser with no download, no account, and no cost. Use it as a ti 84 online graphing tool to plot functions, as a Texas Instruments fraction calculator for rational arithmetic, as a matrix solver for 4×4 operations, or as a complete ti 84 free online statistics engine computing 13 measures in one click. Works on any device iPhone, Android, Chromebook, tablet, laptop, or desktop.
TI-84 Quick Reference
Graph Functions
Click Graph mode. Type an expression in Y1= using x — for example sin(x), x^2-4, or 2*x+1. The graph renders automatically. Adjust the window. Plot up to 3 functions simultaneously.
Matrix Operations
Click Matrix mode, set dimensions, enter values, then choose ×, +, −, Tr (transpose), or det (determinant) and press Compute. Supports matrices up to 4×4.
1-Variable Statistics
Click Stat mode, enter comma-separated data, then press Calculate 1-Var Stats. Instantly get 13 measures: mean, median, σ, s, Q1, Q3, IQR, range, min, max, mode, n, and sum.
Fraction Arithmetic
Use the ÷ button for fraction calculations. Enter the numerator, press ÷, then the denominator, then ENTER. Chain multiple fractions: (1÷3)+(1÷6) returns 0.5.
2nd Functions
Press 2nd to unlock secondary functions: SIN becomes sin⁻¹, COS becomes cos⁻¹, TAN becomes tan⁻¹, LN becomes e^x, LOG becomes 10^x, √ becomes ∛. The yellow 2nd badge confirms it is active.
Angle Mode — RAD vs DEG
sin(90°) = 1 · sin(π/2 rad) = 1 · sin(90 rad) ≈ 0.894
Supported Functions
Trigonometry
Logarithms
Powers & Roots
Fractions & Algebra
Hyperbolic
Graphing
Matrix
Statistics
Trusted by 50,000+ students
Used by high school and college students for algebra, pre-calculus, AP Statistics, and SAT/ACT prep worldwide.
Browse All Calculators →What Is the TI-84 Calculator Online?
The TI-84 calculator online is a free, browser-based simulator of the Texas Instruments TI-84 Plus CE graphing calculator the most widely used graphing calculator in American K-12 education. Texas Instruments sells the physical device for $100 to $150. This free TI-84 online delivers all core mathematical functionality at zero cost, running entirely in your browser with no download, no install, and no account. The simulator uses IEEE 754 double-precision floating-point arithmetic, the same 64-bit standard used in professional engineering software, producing results that match the physical TI-84 Plus CE to 10 significant figures.
What Does "TI-84 Plus CE" Mean?
The TI-84 Plus CE is produced by Texas Instruments. "CE" stands for Color Edition the physical device features a full-color 320×240 pixel display, a rechargeable lithium-ion battery, a thinner chassis at 150 g, and optional Python programming via the TI-Python app. Our TI-84 Plus CE simulator replicates the complete mathematical layer: graphing, scientific operations, fraction arithmetic, matrix computations, statistics, and value tables. The hardware differences (color display, battery type) are physical and do not affect any mathematical result.
Features of This Free TI-84 Calculator Online
Native Canvas Graphing Engine
Real HTML5 Canvas rendering not an iframe embed of a third-party tool. Plot 3 functions simultaneously (Y1, Y2, Y3) with live Xmin/Xmax/Ymin/Ymax window adjustment. The canvas samples at 3× display resolution for smooth curves on retina screens.
Full Matrix Calculator (up to 4×4)
Multiply, add, subtract, transpose, and compute the determinant of matrices up to 4×4. Input values directly into grid cells. Resizable dimensions. Includes dimension-mismatch error messages exactly matching the physical TI-84.
Complete 1-Variable Statistics (13 Metrics)
Paste any dataset and instantly receive all 13 measures the physical TI-84 provides: n, Σx, mean (x̄), median, mode, min, max, range, Q1, Q3, IQR, σ (population standard deviation), and s (sample standard deviation).
Texas Instruments Fraction Calculator
Use the ÷ operator to compute fractions and rational arithmetic exactly how the physical Texas Instruments fraction calculator works. Compute 3÷4 = 0.75, chain fractions like (1÷3)+(1÷6) = 0.5, or mix fractions with other operations in a single expression.
Value Table Generator (2nd+GRAPH Style)
Replicates the TI-84's 2nd+GRAPH table feature exactly. Set TblStart (starting x), ΔTbl (step size), and the expression in Y1=. Generates a precise 20-row x/Y1 table instantly — ideal for locating roots by scanning for sign changes.
Authentic TI-84 Keyboard Layout
The five graphing buttons (Y=, WINDOW, ZOOM, TRACE, GRAPH) sit at the top exactly where they appear on the physical TI-84 Plus CE. The 2nd and ALPHA modifiers, the SIN/COS/TAN row, and memory buttons all occupy their expected positions — preserving muscle memory.
30-Entry Calculation History
Every calculation saves automatically to a scrollable history panel. Click any entry to reload that result into the display. Use it to recover intermediate values in multi-step problems or review a full session at a glance.
Full Keyboard Support
Type 0-9 digits, +, -, *, /, ^ directly from your keyboard. Press Enter or = for equals, Escape for clear, and Backspace to delete. This is significantly faster than clicking for long calculation chains.
Using This TI-84 Online as a Texas Instruments Fraction Calculator
The physical Texas Instruments TI-84 handles fractions using the division operator and the MATH menu. This free TI-84 online replicates that behavior through the ÷ button. Here are the most common fraction calculations students run on the TI-84 and how to perform them on this simulator:
| Fraction task | What to press | Result |
|---|---|---|
| Simple fraction 3/4 | 3 ÷ 4 ENTER | 0.75 |
| Mixed number 1½ | 1 + 1 ÷ 2 ENTER | 1.5 |
| Add fractions 1/3 + 1/6 | (1÷3) + (1÷6) ENTER | 0.5 |
| Multiply fractions 2/3 × 3/4 | (2÷3) × (3÷4) ENTER | 0.5 |
| Divide fractions (3/4) ÷ (1/2) | (3÷4) ÷ (1÷2) ENTER | 1.5 |
| Fraction to percentage 5/8 | 5 ÷ 8 × 100 ENTER | 62.5 |
| Simplify 12/16 | 12 ÷ 16 ENTER | 0.75 (= 3/4) |
| Reciprocal of 4/5 | Use 1/x after computing 4÷5 | 1.25 (= 5/4) |
How to Use the TI-84 Online Calculator? Step by Step
Step 1: Graph a function
Click Graph mode. Type your expression in Y1= using x as the variable for example sin(x), x^2-3x+2, or ln(x). The graph renders on an HTML5 canvas automatically. Adjust Xmin, Xmax, Ymin, Ymax to change the viewing window. Add up to 3 simultaneous functions in Y1, Y2, and Y3 in different colors.
Step 2: Compute fractions (Texas Instruments fraction mode)
Stay in Calculator mode. Enter the numerator, press ÷, enter the denominator, then press ENTER. For compound fractions or mixed numbers, use parentheses: (3÷4)+(1÷8) returns 0.875. This matches how the physical Texas Instruments calculator handles fraction arithmetic.
Step 3: Run a scientific calculation
Enter your number first, then press the function button. For sin(30°), switch to DEG mode first using the RAD/DEG toggle, enter 30, then press SIN. Press 2nd before SIN, COS, or TAN to access the inverse functions sin⁻¹, cos⁻¹, and tan⁻¹.
Step 4: Perform matrix operations
Click Matrix mode. Set the row and column count for [A] and [B] (up to 4×4 each). Fill in the values by clicking each cell. Choose your operation: multiply, add, subtract, transpose (Tr), or determinant (det). Press Compute. The simulator validates dimensions before computing and shows an error if they are incompatible.
Step 5: Calculate 1-variable statistics
Click Statistics mode. Enter your data values separated by commas or spaces for example: 12, 15, 18, 22, 25. Press Calculate 1-Var Stats. You immediately receive all 13 statistical measures: count (n), sum (Σx), mean (x̄), median, mode, min, max, Q1, Q3, IQR, range, population standard deviation (σ), and sample standard deviation (s).
Step 6: Generate a value table
Click Table mode. Enter your expression in Y1= for example x^2 or 2*x+3. Set TblStart (the starting x-value) and ΔTbl (the step between rows). The calculator generates a 20-row x/Y1 table, matching the output of pressing 2nd+GRAPH on a physical TI-84 Plus CE. Values showing UNDEF indicate domain errors at those x-values.
Example Calculations: Try These Right Now
| Task | Mode | What to type / press | Result |
|---|---|---|---|
| sin(30°) | Calc — DEG mode | 30 → SIN | 0.5 |
| √144 | Calc | 144 → √ | 12 |
| 5! | Calc | 5 → n! | 120 |
| log(1000) | Calc | 1000 → LOG | 3 |
| Fraction 3/4 + 1/8 | Calc | (3÷4)+(1÷8) ENTER | 0.875 |
| Mixed number 2½ | Calc | 2+(1÷2) ENTER | 2.5 |
| Graph y = x² − 4 | Graph | x^2-4 in Y1= | Parabola crossing x at ±2 |
| Find roots of x²−4 | Table | x^2-4 in Y1=, step 0.5 | Y1 = 0 at x = 2 and x = −2 |
| Matrix A × B (2×2) | Matrix | Set dims → fill → [A]×[B] | Product matrix |
| Mean of 2,4,4,4,5,7,9 | Statistics | Enter data → 1-Var Stats | Mean = 5, σ ≈ 1.96 |
| e^2 | Calc | 2 → e^x button | 7.3890560989 |
| tan⁻¹(1) | Calc — DEG | 1 → 2nd TAN | 45° |
Who Uses the TI-84 Calculator Online?
🎓 High School Students
Algebra II, pre-calculus, AP Statistics, AP Calculus AB/BC, and AP Chemistry all require or benefit from a TI-84 Plus CE. Practice homework problems and master the button layout before exam day without carrying the physical device.
⚛️ College Students
Calculus I/II/III, linear algebra, differential equations, statistics, and engineering courses rely on graphing calculators. The native matrix calculator and function grapher cover the vast majority of university mathematics coursework.
🔧 Teachers and Tutors
Project the simulator on a classroom screen and demonstrate graphing, statistics, or matrix operations live while students follow along in their own browsers. Zero setup, zero cost, zero compatibility problems across different TI-84 firmware versions.
TI-84 Online vs Other Online Graphing Calculators
| Feature | This TI-84 Online | Desmos | GeoGebra | WolframAlpha |
|---|---|---|---|---|
| TI-84 authentic keyboard layout | ✅ Authentic | ❌ | ❌ | ❌ |
| Native canvas graphing (not iframe) | ✅ Native | ✅ Native | ✅ Native | ❌ Static |
| Matrix calculator (4×4) | ✅ Full (×,+,−,Tr,det) | ❌ | ⚠️ Limited | ✅ |
| 1-var statistics (13 metrics) | ✅ All 13 | ⚠️ Basic | ✅ | ✅ |
| Fraction arithmetic | ✅ ÷ operator | ✅ | ✅ | ✅ |
| Value table generator | ✅ 2nd+GRAPH style | ✅ | ✅ | ⚠️ |
| Calculation history (30 entries) | ✅ | ❌ | ❌ | ❌ |
| Free with no account | ✅ | ✅ | ✅ | ⚠️ Limited |
| Works offline after page load | ✅ JS only | ⚠️ Partial | ⚠️ Partial | ❌ |
| Mobile-friendly touch layout | ✅ | ✅ | ✅ | ✅ |
| 2nd function modifier (sin⁻¹ etc) | ✅ Authentic | N/A | N/A | N/A |
TI-84 Plus vs TI-84 Plus CE: What Is the Difference?
| Feature | TI-84 Plus | TI-84 Plus CE |
|---|---|---|
| Display | 96×64 grayscale pixels | 320×240 full-color pixels |
| Battery | 4× AAA batteries | Rechargeable lithium-ion |
| Weight | 190 g | 150 g (thinner chassis) |
| RAM | 24 KB | 154 KB |
| Python support | No | Yes (TI-Python app) |
| SAT/ACT/AP approved | Yes | Yes |
| Fraction operations | Yes | Yes |
| Matrix operations | Up to [J] (10 matrices) | Up to [J] (10 matrices) |
| 1-Var Statistics | Yes (1-Var Stats, 2-Var Stats) | Yes (1-Var Stats, 2-Var Stats) |
| Approximate retail price | ~$90 | ~$130 |
This TI-84 simulator is modeled after the TI-84 Plus CE. Both models are approved for the SAT, ACT, AP exams, and most college placement tests. See also: Scientific Calculator and Fraction Calculator.
Why Use a TI-84 Calculator Online Instead of the Physical Device?
10 TI-84 Pro Tips Every Student Should Know
Always check RAD vs DEG before any trig calculation
sin(90) in DEG mode returns 1. sin(90) in RAD mode returns approximately 0.894. This single mode error causes more wrong answers on standardized tests than any other mistake. Verify the RAD/DEG badge in the top-right corner before every trigonometric operation.
Use ZOOM to reset a blank graph window
If your graph appears blank, press the ZOOM button it resets Xmin/Xmax/Ymin/Ymax to the standard window values. This matches ZOOM → 6:ZStandard on the physical TI-84 Plus CE and solves the majority of 'my graph disappeared' problems.
Use fractions with the ÷ operator, not decimals
For exact fraction arithmetic, compute the fraction using ÷ rather than converting to decimals first. For example, (1÷3)×(3÷4) avoids decimal rounding errors that can accumulate in multi-step fraction problems.
Use memory for multi-step algebra
Compute one part of a complex expression, press STO→ to save it, then compute the next part. Press MR to recall the saved value and combine. This prevents rounding errors from manually re-entering intermediate decimal results.
Graph both sides of an equation to find intersections
To solve f(x) = g(x) graphically, enter f(x) in Y1= and g(x) in Y2=. The x-coordinate where the two curves intersect is the solution. This visual approach works for equations that are difficult or impossible to solve algebraically.
Use Table mode to hunt for roots and zeros
Enter your expression in Y1= in Table mode. Scan the Y1 column for sign changes where Y1 transitions from positive to negative or vice versa, a root lies in that interval. Reduce ΔTbl to narrow down the root with increasing precision.
Check matrix dimensions before multiplying
Matrix multiplication [A]×[B] requires the number of columns in [A] to equal the number of rows in [B]. If [A] is 2×3, then [B] must be 3×n. The simulator shows a clear error message for incompatible dimensions use it to verify before an exam.
Press 2nd twice to cancel and do not press another key
If you accidentally activate 2nd, pressing 2nd a second time cancels it without executing a secondary function. The yellow 2nd badge disappears to confirm deactivation. Pressing a function key after accidental 2nd activation executes the inverse function, which is the most common source of unexpected results.
Use keyboard shortcuts for speed
Type digits and operators directly from your physical keyboard. Press Enter or = for equals, Escape for all-clear, and Backspace to delete one digit. For long multi-step calculations, keyboard input is significantly faster than clicking individual buttons.
Load history entries to build on previous results
Click the 📋 HIST button to open calculation history. Click any previous result to reload it into the display and continue calculating from that value. This is especially useful for iterative calculations where each step builds on the last.