How to Put Degree Symbol in Graphing Calculator

The degree symbol (°) is essential for entering angles in trigonometric functions on graphing calculators. This guide explains how to properly insert this symbol across different calculator brands and models.

How to Insert the Degree Symbol

The degree symbol can be entered in different ways depending on your calculator model. Here are the most common methods:

Note: The degree symbol is not the same as the apostrophe (') or double quote (") symbol. Make sure you're using the correct symbol for your calculation.

Using the Degree Key

Most scientific and graphing calculators have a dedicated degree key. Look for a key labeled with a small circle and a line (like °) or the word "deg".

Using the Alpha or Shift Key

On some calculators, you may need to use the Alpha or Shift key in combination with another key to access the degree symbol. For example:

Press Alpha then the key labeled with °
Press Shift then the key labeled with °

Using the Character Menu

Some calculators have a character menu where you can select special symbols. Look for a key labeled "Chars" or "Sym" and navigate to the degree symbol.

Using the Keyboard Input

If your calculator has a keyboard input mode, you can type the degree symbol directly using the appropriate key combination. Common combinations include:

Alt + 0176 on Windows
Option + Shift + 8 on Mac

Common Calculators and Methods

Here's how to enter the degree symbol on popular graphing calculators:

TI-84 Plus CE

Press 2nd then CATALOG. Scroll to find the degree symbol (°) and press ENTER.

Casio fx-CG50

Press SHIFT then ° key.

HP Prime

Press ALPHA then ° key.

Texas Instruments TI-Nspire

Press MENU then Symbols. Select the degree symbol from the list.

Practical Examples

Here are some practical examples of how to use the degree symbol in calculations:

Example 1: Sine of 30 Degrees

To calculate sin(30°):

Enter the number 30
Press the degree symbol key
Press the sin key
The result should be 0.5

Example 2: Angle Conversion

To convert 90° to radians:

Enter the number 90
Press the degree symbol key
Press the conversion key (if available)
The result should be approximately 1.5708 radians

Tip: Always double-check that you've entered the degree symbol correctly, as using radians instead can lead to incorrect results in trigonometric calculations.

FAQ

What happens if I forget to enter the degree symbol?

If you forget the degree symbol, your calculator will assume the angle is in radians, which can lead to incorrect results. For example, sin(30°) is 0.5, but sin(30) is approximately -0.9880.

Can I use the degree symbol with all trigonometric functions?

Yes, the degree symbol can be used with all trigonometric functions (sin, cos, tan, etc.) on most graphing calculators.

Is the degree symbol the same as the apostrophe symbol?

No, the degree symbol (°) is different from the apostrophe (') symbol. Make sure you're using the correct symbol for your calculation.