A LITTLE SPACE TO FIGURE THINGS OUT
Your calculator workspace.
Click or tap the keys. Keyboard shortcuts & help
GET COMFORTABLE WITH THE KEYS
A good place to start.
A parabola with a lowest point at (0, −4) and x-intercepts at −2 and 2.
Back to calculator- 01
Give it a function.
Open y=, select Y₁ and press clear. Enter X,T,θ,n x² – 4. Clear other Y= entries for this example.
- 02
Set the scene.
Press zoom, then 6 for ZStandard. This sets the viewing window from −10 to 10 on both axes and draws the graph.
- 03
Follow the curve.
Use trace and the arrow keys to explore. The curve opens upward and crosses the x-axis on either side of the origin.
AT YOUR FINGERTIPS
Keys & useful shortcuts.
Use the on-screen keys for the calculator layout. On a computer, F1–F5 open the top menus. You may need to hold Fn on a laptop.
The small letters above keys show the existing emulator’s keyboard mapping; they do not match ordinary number typing.
- F1 — F5
- Y=, Window, Zoom, Trace, Graph
- ↑ ← ↓ →
- Move through menus and graph traces
- Enter
- Confirm a selection or calculate
- Backspace
- Use the calculator’s Clear key
My graph is missing or looks unexpected.
Check your Y= entry and try Zoom → 6:ZStandard. Turn off other functions or stat plots if they interfere. For trigonometric functions, check Degree or Radian in Mode.
My program does not run after importing.
Importing loads a file; it does not run it. For a program, open PRGM, choose its name and confirm with ENTER, then press ENTER to execute. Some files require libraries or another calculator model. Check the source instructions.
I cannot find my saved session.
Return using the same browser, browser profile and device. Saves are local, not cloud backups, and private browsing or clearing site data can remove them. Save session must finish successfully before you leave.
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