📟 TI-84 Plus CE Calculator

online emulator · 2nd · ALPHA · trig · logs · history · themes · theater mode

TI-84 Plus CE

NORMALFLOATAUTOREAL DEGREEMP 2nd A

Texas Instruments

Tips · 2nd unlocks the small blue label above each key — try 2nd then sin for sin⁻¹. ALPHA + a letter key stores into variables (STO→ writes the current value). 2nd + (-) inserts the last answer Ans. 2nd + ENTER recalls the last entry. Press MODE to flip between DEGREE and RADIAN. Your physical keyboard works too — digits, operators, Enter, Backspace.
Graphing · Press Y= to enter functions (use X,T,θ,n for X), then GRAPH to plot, TRACE to walk the curve with ← →, and ZOOM for presets (6: ZStandard, 7: ZTrig). WINDOW sets Xmin/Xmax/etc. 2nd+MODE quits any screen back to home.

What is this?

An online emulator of the TI-84 Plus CE graphing calculator — the same keypad layout that AP/SAT students use, modelled in the browser. The display, modifier keys, and angle modes behave like the real device.

Why does it matter?

The TI-84 is the standard calculator for U.S. high-school math, AP Calculus, AP Statistics, and the SAT/ACT. Practicing with the same key layout you'll use on exam day builds the muscle memory that saves precious seconds.

Key terms

2nd — modifier; the next key uses its blue label above the key (e.g. 2nd + ^ inserts π) ALPHA — modifier; the next key types its green letter for variable names A–Z DEG / RAD — angle mode; sin(30) means 30 degrees in DEG, but 30 radians in RAD. Toggle with MODE. Ans — the last answer; inserted with 2nd + (-) ENTRY — recall the last entry to re-edit it; 2nd + ENTER STO→ — store the current answer into a letter variable: STO→ ALPHA A

🎯 Try this challenge

Compute sin(30°) in DEGREE mode (should be 0.5). Then press MODE → switch to RADIAN, and try sin(π/6) using 2nd+^ to insert π. Same answer, different path. Now press 2nd+ENTER to recall and edit your previous entry.

Continue Learning

Graphing Calculator