How to retain integers in python

Python Several Rounding Methods

Data processing is inevitable in programming. In many cases, it is necessary to process the obtained data according to requirements. Rounding is the most effective method. Basic data processing. Rounding methods include rounding down, rounding up, rounding up, etc.

1. Round down (recommended learning: Python video tutorial)

To round down, just use the built-in int() function:

>>> a = 3.75
>>> int(a)

2. Rounding

To round numbers, use the round() function:

>>> round(3.25); round(4.85)
3.0
5.0

3. Rounding up

Rounding up requires using the ceil() method in the math module:

>>> import math
>>> math.ceil(3.25)
4.0
>>> math.ceil(3.75)
4.0
>>> math.ceil(4.85)
5.0

4.Respectively Get the integer part and the decimal part

Sometimes we may need to get the integer part and the decimal part respectively. In this case, we can use the modf() method in the math module. This method returns a decimal part and an integer. Partial tuple:

>>> import math
>>> math.modf(3.25)
(0.25, 3.0)
>>> math.modf(3.75)
(0.75, 3.0)
>>> math.modf(4.2)
(0.20000000000000018, 4.0)

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