Python Numbers

Python Numbers

Python Numbers

There are three numeric types in Python:

  • int
  • float
  • complex

Variables of numeric types are created when you assign a value to them:

Example


 

To verify the type of any object in Python, use the type() function:

Example

Try it Yourself »


Int

Int, or integer, is a whole number, positive or negative, without decimals, of unlimited length.

Example

Integers:

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Float

Float, or “floating point number” is a number, positive or negative, containing one or more decimals.

Example

Floats:

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Float can also be scientific numbers with an “e” to indicate the power of 10.

Example

Floats:

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Complex

Complex numbers are written with a “j” as the imaginary part:

Example

Complex:

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Type Conversion

You can convert from one type to another with the int()float(), and complex() methods:

Example

Convert from one type to another:

Try it Yourself »

Note: You cannot convert complex numbers into another number type.


Random Number

Python does not have a random() function to make a random number, but Python has a built-in module called random that can be used to make random numbers:

Example

Import the random module, and display a random number between 1 and 9:

Try it Yourself »

In our Random Module Reference you will learn more about the Random module.


Test Yourself With Exercises

Exercise:

Insert the correct syntax to convert x into a floating point number.

Start the Exercise


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