# Plus

**Plus** may refer to any of the following:

1. When referring to a keyboard or symbol, the **plus** ( + ) is found on the same key as the equal sign. As pictured here, it is depicted as a horizontal and vertical line that cross exactly at the center.

## Where is the plus key on the keyboard?

Below is an overview of a computer keyboard with the plus key highlighted in blue on the main keyboard and numeric keypad.

## How to create the + symbol

### Creating the + symbol on a U.S. keyboard

To create a plus using a U.S. keyboard, hold down the Shift key and press the plus key. It is located on the same key as the equals sign ( = ), next to the backspace key.

The plus is easier to use on the numeric keypad with math formulas.

### Creating the + symbol on a smartphone or tablet

To create a plus on a smartphone or tablet, open the OSK (on-screen keyboard). Tap the numbers (123) button, then (#+=) or symbols (sym) key. Then tap the + symbol.

## What is a plus used for on a computer?

The plus key is most often used in programming and mathematics to add two or more numbers or as a programming operator.

### Plus in a math formula

In a math formula a plus is used to represent an addition. For example, in the below formula you can see that 2 <plus> 1 is equal to 3.

2 + 1 = 3

### A plus in a URL

In a URL the + is a common method used to represent a space, because spaces are not allowed in URLs.

### Plus in a shortcut key

When describing a shortcut key, the plus symbol is used to indicate two or more keys pressed at the same time. For example, *Ctrl+A* indicates pressing the Ctrl key and the "a" key at the same time to select all text. The plus may also be used as a shortcut. For example, in your browser, you can press the Ctrl key and the plus key at the same time to zoom in on text or an image.

### A plus in a regular expression

With a regular expression, a plus is used to match one or more times. For example, in the below regular expression, all occurrences of the letter "z" in the $example variable would be replaced with a single letter "a." In other words, "z" would become "a," "zz" would become "a," "zzz" would become "a," etc.

$example =~ /z+/a/g;

### Increment a variable in programming

Two pluses next to each other in programming is a shorthand method of incrementing a variables value. For example, if you had a variable called $count that was equal to "10" and you wrote $count++; in many different programming languages it would increment by one and become "11."

2. **Plus** is also an abbreviated version of **Google+**.