# How to remove all decimals from a number using Python?

• Difficulty Level : Medium
• Last Updated : 25 Feb, 2021

In python programming, sometimes it is necessary to remove all decimals from a number to get the required output. These decimals are also called Floating point numbers in Python. Basically, there are 3 numerical data types in python. They are integers(int()), floating-point numbers(float()) and complex(complex()) data types. Type conversion in python helps to convert a decimal value number(floating number) to an integer. Thus converting float->int removes all decimals from a number.

There are three methods for removing all decimals from a number using python

Methods:

1. Using int( ) function
2. Using trunc( )function
3. Using split( ) function

Method 1: Using int( ) [Type conversion] :

int( ) is a built-in function used to convert any value into an integer number.

## Python3

 `Number1 ``=` `44.560``Number2 ``=` `856.9785623``Number3 ``=` `9999.99`` ` `# Type conversion float to int``New_Number1 ``=` `int``(Number1)``New_Number2 ``=` `int``(Number2)``New_Number3 ``=` `int``(Number3)`` ` `print``(``"Number1 = "``, New_Number1)``print``(``"Number2 = "``, New_Number2)``print``(``"Number3 = "``, New_Number3)`` ` `# type() function returns the data type``print``(``type``(Number1))``print``(``type``(New_Number1))`

Output :

```Number1 =  44
Number2 =  856
Number3 =  9999
<class 'float'>
<class 'int'>```

Method 2: Using truncate function(trunc( )) :

The math( ) module is a standard built-in module in python. There are numerous mathematical functions defined in math( ) module. To use the truncate function, first, the math module must be imported, using trunc( ) function without defining the math( ) module gives an error. By using math.trunc( ) function a number can be truncated in python.

## Python3

 `# import math function to use trunc( ) function``import` `math`` ` `num1 ``=` `math.trunc(``450.63``)``print``(num1)``print``(math.trunc(``999998.99999``))``print``(math.trunc(``-``89.99``))``print``(math.trunc(``0.99``))`

Output :

```450
999998
-89
0```

Method 3 : Using split( ) function

The split( ) function only works on strings. Hence, the decimal values are converted to a string using str( ) function and then split at the decimal point. The values remain in the string data type after performing split( ) function. Therefore, the values are again converted to the integer data type.

## Python3

 `value1 ``=` `[``998.99``, ``56.8``, ``25.6``, ``-``52.0``]`` ` `# values are split at decimal point``lst ``=` `[]``for` `each ``in` `value1:``    ``lst.append(``str``(each).split(``'.'``)[``0``])`` ` `# all values converting to integer data type``final_list ``=` `[``int``(i) ``for` `i ``in` `lst]``print``(final_list)`

Output:

`[998, 56, 25, -52]`

Note: Using of int() function for removing all the decimal values is easy and saves time with just a single line of code.

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