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TI-84 Quick Reference

The ultimate cheat sheet for your TI-84 calculator. Essential functions, shortcuts, and commands organized for quick lookup. Perfect for exams, homework, and everyday use.

⚑ Instant Reference
πŸ”₯ Essential Shortcuts
πŸ“± Quick Access

Quick Access Guide

⚑ Essential Keyboard Shortcuts

Master these essential keyboard shortcuts to use your TI-84 calculator efficiently. These key combinations will save you time and make navigation much faster.

Navigation Shortcuts

Action Shortcut Description Use Case
Home Screen 2ND + MODE Return to main screen Exit any menu or app
Clear Screen CLEAR Clear current entry Start fresh calculation
Delete Character DEL Delete character before cursor Fix typing mistakes
Insert Mode 2ND + DEL Toggle insert/overwrite Edit existing expressions
Previous Entry 2ND + ENTER Recall last calculation Repeat or modify calculations
Answer Variable 2ND + (-) Insert last answer (Ans) Use previous result

Math Function Shortcuts

Function Shortcut Symbol/Result Example
Square Root 2ND + x² √( √(16) = 4
Squared xΒ² Β² 5Β² = 25
Power ^ ^ 2^3 = 8
Pi 2ND + ^ Ο€ Ο€ β‰ˆ 3.14159
Natural Log LN ln( ln(e) = 1
Log Base 10 LOG log( log(100) = 2
e^x 2ND + LN e^( e^1 β‰ˆ 2.718
10^x 2ND + LOG 10^( 10^2 = 100

Trigonometry Shortcuts

Function Key Inverse (2ND + Key) Notes
Sine SIN sin⁻¹( or arcsin( Angle mode matters
Cosine COS cos⁻¹( or arccos( Angle mode matters
Tangent TAN tan⁻¹( or arctan( Angle mode matters

Angle Mode Tip

Remember to check your angle mode! Press MODE to switch between Degree and Radian modes. Most high school problems use degrees, while calculus typically uses radians.

Advanced Shortcuts

Action Shortcut Function When to Use
Absolute Value MATH β†’ NUM β†’ 1 abs( Distance, magnitude
Factorial MATH β†’ PRB β†’ 4 ! Combinations, permutations
Random Integer MATH β†’ PRB β†’ 5 randInt( Simulations, games
nPr (Permutations) MATH β†’ PRB β†’ 2 nPr Ordered arrangements
nCr (Combinations) MATH β†’ PRB β†’ 3 nCr Unordered selections
Summation 2ND + STAT β†’ MATH β†’ 5 sum( Add list elements

🧭 Menu Navigation Guide

Understanding the TI-84's menu system is crucial for efficient operation. Here's your complete guide to accessing every important function quickly.

Main Menu Keys

Menu Key Purpose Most Used Functions
MATH MATH Mathematical functions abs, factorial, nPr, nCr, GCD
ALPHA ALPHA Letters and text Variable names, program text
VARS VARS Variable access X/Y variables, functions, statistics
PROGRAM PRGM Programming functions Create, edit, run programs
STATISTICS STAT Data analysis Lists, regression, tests
MATRIX 2ND + x⁻¹ Matrix operations Create, edit, calculate matrices

MATH Menu Breakdown

Submenu Key Path Important Functions Common Uses
NUM MATH β†’ NUM abs, round, int, fPart, iPart Number manipulation
CPX MATH β†’ CPX conj, real, imag, angle Complex numbers
PRB MATH β†’ PRB rand, nPr, nCr, !, randInt Probability, statistics
FRAC MATH β†’ FRAC β–ΊFrac, β–ΊDec Fraction conversions

STAT Menu Features

Function Path Purpose Example Use
Edit Lists STAT β†’ EDIT β†’ 1 Enter data Input survey data
Sort Lists STAT β†’ EDIT β†’ 2/3 Order data Find median, quartiles
1-Var Stats STAT β†’ CALC β†’ 1 Descriptive statistics Mean, std dev, quartiles
Linear Regression STAT β†’ CALC β†’ 4 Line of best fit Predict trends
Quadratic Regression STAT β†’ CALC β†’ 5 Parabolic fit Projectile motion

Graph Menu Functions

Function Key Purpose Pro Tip
Y= Editor Y= Enter functions to graph Use different colors for clarity
Window Settings WINDOW Set graph viewing area Try ZStandard first
Zoom Menu ZOOM Quick window adjustments ZDecimal for nice coordinates
Trace TRACE Explore points on graph Use arrow keys to move
Calculate 2ND + TRACE Find special points Zeros, max, min, intersect

Menu Navigation Tips

β€’ Use arrow keys to navigate menus quickly
β€’ Numbers 1-9 select menu items directly
β€’ CLEAR exits most menus
β€’ Some functions have multiple pages - scroll down!

Practice These Functions - Free TI-84 Calculator

Try out these shortcuts and functions with our full-featured TI-84 emulator

sin(45)
.7071067812
2ND + ANS
AnsΒ²
ENTER
.5
πŸš€ Start Practicing Now

πŸ“Š Mathematical Functions

Comprehensive reference of all mathematical functions available on your TI-84 calculator. Organized by category for quick lookup during problem-solving.

Basic Operations

Operation Symbol Example Notes
Addition + 5 + 3 = 8 Standard arithmetic
Subtraction - 10 - 4 = 6 Use (-) for negative numbers
Multiplication Γ— or * 6 Γ— 7 = 42 Implied multiplication: 2(3+4)
Division Γ· or / 15 Γ· 3 = 5 Returns decimal unless in FRAC mode
Exponentiation ^ 2^3 = 8 Order of operations applies
Parentheses ( ) (2+3)Γ—4 = 20 Override order of operations

Advanced Math Functions

Function Symbol/Access Purpose Example
Square Root √( or 2ND + x² Principal square root √16 = 4
Cube Root MATH β†’ 4 Cube root function βˆ›27 = 3
nth Root MATH β†’ 5 Any root ⁴√16 = 2
Absolute Value MATH β†’ NUM β†’ 1 Distance from zero abs(-5) = 5
Greatest Integer MATH β†’ NUM β†’ 5 Floor function int(3.7) = 3
Fractional Part MATH β†’ NUM β†’ 4 Decimal portion fPart(3.7) = 0.7
Round MATH β†’ NUM β†’ 2 Round to places round(3.14159,2) = 3.14

Exponential and Logarithmic Functions

Function Key/Access Description Common Use
e^x 2ND + LN Natural exponential Growth/decay problems
10^x 2ND + LOG Base 10 exponential Scientific notation
Natural Log LN Log base e Continuous growth
Common Log LOG Log base 10 pH, decibels
Log Base B MATH β†’ A Any base logarithm Computer science

Trigonometric Functions

Function Key Inverse (2ND + Key) Domain/Range Notes
Sine SIN sin⁻¹ (arcsin) Output: [-1, 1]
Cosine COS cos⁻¹ (arccos) Output: [-1, 1]
Tangent TAN tan⁻¹ (arctan) Undefined at 90°, 270°, etc.
Secant 1/cos(x) No direct key Reciprocal of cosine
Cosecant 1/sin(x) No direct key Reciprocal of sine
Cotangent 1/tan(x) No direct key Reciprocal of tangent

Function Input Tips

β€’ Always close parentheses: sin(30), not sin30
β€’ Use implied multiplication: 2sin(x), not 2*sin(x)
β€’ Check angle mode (DEG/RAD) before trig calculations
β€’ Use parentheses for complex expressions: sin(2x+1)

Statistical Functions

Function Access Path Purpose Requirements
Mean 2ND + STAT β†’ MATH β†’ 3 Average of list Data in list (L1, L2, etc.)
Median 2ND + STAT β†’ MATH β†’ 4 Middle value Sorted data in list
Standard Deviation 2ND + STAT β†’ MATH β†’ 7 Measure of spread Data in list
Sum 2ND + STAT β†’ MATH β†’ 5 Total of list elements Numeric list
Maximum 2ND + STAT β†’ MATH β†’ 2 Largest value Numeric list
Minimum 2ND + STAT β†’ MATH β†’ 1 Smallest value Numeric list

πŸ’Ύ Memory & Variables

Efficient memory management and variable usage are essential for advanced calculator work. Learn how to store, access, and manage data on your TI-84 calculator.

Variable Types and Storage

Variable Type Examples Capacity Access Method
Real Numbers A, B, C, ..., Z 26 variables Direct typing or VARS menu
Complex Numbers A+Bi format Same as real Use i (2ND + .)
Lists L1, L2, L3, L4, L5, L6 999 elements each 2ND + number or STAT β†’ EDIT
Matrices [A], [B], [C], ..., [J] 99Γ—99 maximum 2ND + x⁻¹ (MATRIX menu)
Strings Str0, Str1, ..., Str9 255 characters each VARS β†’ Y-VARS β†’ String
Functions Y1, Y2, ..., Y0 10 function slots Y= key or VARS β†’ Y-VARS
Pictures Pic1, Pic2, ..., Pic0 95Γ—63 pixels 2ND + PRGM β†’ DRAW β†’ STO

Storage and Recall Commands

Operation Symbol/Key Example Use Case
Store to Variable → (STO→) 25 → A Save calculation result
Recall Variable Variable name A + 5 Use stored value
Store to List Element β†’ L1(index) 100 β†’ L1(1) Fill specific list position
Recall List Element L1(index) L1(1) + L1(2) Use specific list value
Store Entire List {values} β†’ L1 {1,2,3,4,5} β†’ L1 Create list quickly
Clear Variable DelVar command DelVar A Free up memory

Memory Management

Task Menu Path Purpose When to Use
Check Memory 2ND + + (MEM) β†’ 2 View available RAM Before large operations
Clear All Lists 2ND + + β†’ 4 β†’ 1 Delete all list data Start fresh with data
Archive Variable 2ND + + β†’ 5 β†’ Archive Protect from RAM clear Save important programs
Unarchive Variable 2ND + + β†’ 6 β†’ UnArchive Move back to RAM for editing Edit archived items
Delete Variable 2ND + + β†’ 2 β†’ Delete Permanently remove data Free up space
Reset Calculator 2ND + + β†’ 7 β†’ Reset Factory reset options Fix major problems

Quick Variable Access

Variable Quick Access Alternative Notes
X variable X,T,ΞΈ,n key ALPHA + X Most common variable
Y variable ALPHA + Y VARS β†’ Y-VARS For coordinate pairs
List L1 2ND + 1 STAT β†’ EDIT Primary data list
List L2 2ND + 2 STAT β†’ EDIT Secondary data list
Answer (Ans) 2ND + (-) Last calculation result Automatic storage
Ο€ (Pi) 2ND + ^ VARS β†’ 5:Ο€ Mathematical constant

Memory Best Practices

β€’ Archive programs and data you want to keep permanently
β€’ Clear unused lists before entering new data
β€’ Use descriptive variable names in programs
β€’ Regularly check memory usage with MEM menu
β€’ Store important calculations in variables for reuse
β€’ Use Ans for quick calculations without variables

Advanced Memory Techniques

Technique Method Benefit Example
Chain Calculations Use Ans automatically No variable needed 5+3 [ENTER] β†’ AnsΓ—2
Multiple Assignments Store to multiple vars Save related values 25β†’A:AΒ²β†’B
List Operations Operate on entire lists Batch processing L1+5β†’L2 (adds 5 to all)
String Storage Store text in strings Program messages "Hello World"β†’Str1
Picture Storage Save graph screenshots Compare graphs StorePic 1 (saves to Pic1)

Memory Warnings

β€’ RAM clears when batteries die - archive important data!
β€’ Archive memory survives battery removal
β€’ Don't archive data you need to edit frequently
β€’ Large lists and matrices consume lots of memory
β€’ Some operations require variables to be in RAM

πŸ“‹ Quick Reference Cards

Printable quick reference cards for the most commonly used functions. Perfect for keeping next to your calculator during exams or homework.

Essential Keys Card

TI-84 ESSENTIAL KEYS

NAVIGATION:
2ND + MODE = Home
CLEAR = Clear entry
DEL = Delete character
2ND + ENTER = Last entry

MATH:
xΒ² = Square
2ND + xΒ² = Square root
^ = Power
2ND + ^ = Ο€ (pi)
2ND + (-) = Ans
FUNCTIONS:
SIN, COS, TAN
2ND + SIN = sin⁻¹
LN = Natural log
LOG = Common log
2ND + LN = e^x

STORAGE:
STO→ = Store to variable
ALPHA + letter = Variable
2ND + number = List

Menu Quick Access Card

MENU SHORTCUTS

MATH MENU:
NUM β†’ abs, round, int
PRB β†’ !, nPr, nCr, rand
FRAC β†’ β–ΊFrac, β–ΊDec

STAT MENU:
EDIT β†’ Edit lists
CALC β†’ 1-Var Stats
CALC β†’ LinReg(ax+b)
TESTS β†’ Hypothesis tests
VARS MENU:
Y-VARS β†’ Function variables
Window β†’ Graph settings
Zoom β†’ Graph variables

GRAPH MENUS:
Y= β†’ Enter functions
WINDOW β†’ Set viewing area
ZOOM β†’ Quick zoom options
TRACE β†’ Explore graphs

Common Calculations Card

COMMON CALCULATIONS

ALGEBRA:
Quadratic Formula:
(-B±√(B²-4AC))/(2A)

GEOMETRY:
Circle Area: Ο€rΒ²
Sphere Volume: (4/3)Ο€rΒ³
Distance: √((xβ‚‚-x₁)Β²+(yβ‚‚-y₁)Β²)
TRIGONOMETRY:
Check MODE: Degree/Radian
Pythagorean: aΒ²+bΒ²=cΒ²
Law of Cosines: cΒ²=aΒ²+bΒ²-2ab cos(C)

STATISTICS:
Mean: sum(L1)/length(L1)
Standard Dev: StdDev(L1)
Correlation: LinReg(ax+b) L1,L2

Error Messages & Solutions

Error Message Common Cause Solution Prevention
ERR:SYNTAX Mistyped expression Check parentheses, operators Double-check before ENTER
ERR:DOMAIN Invalid input for function Check function domain Verify input ranges
ERR:DIVIDE BY 0 Division by zero Check denominator Test edge cases
ERR:MEMORY Insufficient RAM Clear variables, archive data Regular memory management
ERR:INVALID DIM List/matrix size mismatch Check dimensions Verify data structure sizes
ERR:WINDOW RANGE Invalid graph window Reset window settings Use ZOOM β†’ ZStandard

Master Your TI-84 Calculator

Put these quick reference shortcuts to use with our free TI-84 calculator emulator. Practice essential functions and build your calculator skills with confidence.

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