# What Data Type Is Single?

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Scott Campbell

## What Data Type Is Single?

In programming, data types define the type and range of values that can be stored in a variable. One commonly used data type is the “Single” data type. The Single data type represents a floating-point number with single precision, often used to store decimal numbers with a smaller range and less precision compared to the Double data type.

### Definition and Usage

The Single data type is represented by the keyword “Single” in many programming languages, including C#, Visual Basic, and Java.

It is sometimes called “float” or “float32” in other programming languages.

The Single data type occupies 4 bytes of memory and can store values ranging from approximately -3.4 x 10^38 to +3.4 x 10^38. It provides a compromise between storage size and precision, making it suitable for scenarios where high precision is not required or memory efficiency is important.

### Usage Examples

Declaration:

``Single temperature;``

In this example, we declare a variable named “temperature” of type Single.

Assignment:

``temperature = 25.5;``

We assign the value of 25.5 to the “temperature” variable.

The Single data type can also be used for mathematical calculations:

``````Single radius = 5.0;

In this example, we calculate the area of a circle using the Single data type.