# How To Type Infinity On Ti 84

When it comes to mathematical calculations and graphing, the TI-84 calculator is a popular choice among students and professionals alike. One common symbol used in mathematics is the infinity (∞) symbol, representing an endless or unlimited value. Though it may not be immediately obvious how to type the infinity symbol on your TI-84 calculator, there are actually a few simple methods to do so. In this article, we will guide you through the process of typing the infinity symbol on your TI-84 calculator.

## Method 1: The Symbol Catalog

The TI-84 calculator comes equipped with a Symbol Catalog containing various symbols and characters. To access this catalog:

- Turn on your TI-84 calculator
- Press the “2nd” key, located in the top left corner of the calculator
- Press the “0” key

Once you have accessed the Symbol Catalog:

- Use the arrow keys to navigate through the symbols
- Locate and select the infinity symbol (∞)
- Press the “Enter” key to input the symbol onto your calculator screen

## Method 2: The Character Map

Another way to type the infinity symbol on your TI-84 calculator is by using the Character Map feature. Here’s how:

- Turn on your TI-84 calculator
- Press the “2nd” key, located in the top left corner of the calculator
- Press the “ALPHA” key, located just below the screen
- Press the “ALPHA” key again to access the Character Map menu

Once you have accessed the Character Map:

- Use the arrow keys to navigate through the characters
- Locate and select the infinity symbol (∞)
- Press the “Enter” key to input the symbol onto your calculator screen

## Method 3: Copy and Paste

If you have access to a computer, you can also type the infinity symbol using a text editor or word processing software, and then copy and paste it onto your TI-84 calculator. Here’s how:

- Open a text editor or word processing software on your computer
- Type the infinity symbol (∞)
- Select the symbol using your mouse or keyboard
- Right-click on the selected symbol and choose “Copy”
- Connect your TI-84 calculator to your computer using a USB cable
- On your calculator, press the “PRGM” key, located just below the screen
- Select “NEW” to create a new program
- Press the “PASTE” key to paste the copied symbol onto your calculator
- Save the program and exit the program editor
- Go back to the calculator’s main screen and run the program to display the infinity symbol

## Conclusion

By following the methods outlined in this article, you can easily type the infinity symbol (∞) on your TI-84 calculator. Whether you prefer using the Symbol Catalog, the Character Map, or copying and pasting from a computer, each method serves as a quick and convenient way to access the infinity symbol. Having the ability to use the infinity symbol on your calculator can greatly enhance your mathematical calculations and graphing, helping you to better express infinite values in your work.