round decimal numbers in Python

Question

How can I render decimal numbers in Python? For example, in the number 3.14373873 only up to and including the number 4.

I want to round the decimal numbers from a specific place:

As example:

3.14373873 -> 3.14

Asked By: Tan

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Source

Answer 1

you can use the round() function:

https://www.w3schools.com/python/ref_func_round.asp

Example:

p = round(50.12345,3)
print(p)

Output: 50,123

Example 2:

# for integers
print(round(15))

# for floating point
print(round(51.6))
print(round(51.5))
print(round(51.4))

Output:
15
52
52
51

Answered By: PrometheusKain

Answer 2

You can do this:

print(round(3.14373873, 4))

Answered By: kleinohad

Answer 3

The round function from the standard python library can be used to round floats to the desired number of digits after decimal point -:

round(decimal_num, num_of_digits_to_round_to)

To round 3.14373873 to just 3.14, you can do the following -:

round(3.14373873, 2)

Refer to official python wiki for more info -:

round(number, ndigits=None)

Return number rounded to ndigits precision
after the decimal point. If ndigits is omitted or is None, it returns
the nearest integer to its input.

Answered By: typedecker

Answer 4

you can use the round() function:-

Example :

x = round(1.54321, 2)

print(x)

You can mention the value after the how many digits you have to store on your program
Your output will be 1.54 because of the mention of 2 digits…
If you have mentioned 3 digits then the output will be 1.543 like that

Answered By: Adwell Scott

round decimal numbers in Python

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