Welcome to this tutorial, where you’ll learn how to **round to the nearest tenth** in Python. Rounding numbers to specific decimal places is a commonly-used operation in various programming tasks. In Python, this operation can be easily achieved using its built-in `round()`

function.

### Step 1: Understand the round() function

First, let’s get to know the built-in ** round() function** in Python. This convenient function can take one or two arguments:

`round(number, ndigits)`

– Rounds a given number to the nearest`ndigits`

decimal place. By default,`ndigits`

is 0, which means that the result would be a rounded integer.

Here’s an example of using the `round()`

function:

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rounded_number = round(3.14159265, 2) print(rounded_number) |

This code will output:

3.14

As you can see, the number `3.14159265`

was rounded to 2 decimal places, which resulted in `3.14`

.

### Step 2: Round to the nearest tenth

In this step, we will focus on rounding to the **nearest tenth**, which means that the number will be rounded to 1 decimal place. To achieve this, we simply need to use the `round()`

function with `ndigits`

set to 1:

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number = 5.6789 rounded_to_tenth = round(number, 1) print(rounded_to_tenth) |

The output of this code is:

5.7

The number `5.6789`

was rounded to the nearest tenth, resulting in `5.7`

.

### Step 3: Rounding a list of numbers

In some scenarios, you may need to round a list of numbers to the nearest tenth. This can be done using a **for loop** or a **list comprehension** in Python. Below are examples of both methods.

Using a for loop:

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numbers = [5.6789, 3.1415, 2.7183] rounded_numbers = [] for num in numbers: rounded_numbers.append(round(num, 1)) print(rounded_numbers) |

Using list comprehension:

1 2 3 |
numbers = [5.6789, 3.1415, 2.7183] rounded_numbers = [round(num, 1) for num in numbers] print(rounded_numbers) |

Both of these code snippets will output:

[5.7, 3.1, 2.7]

## Full code

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number = 5.6789 rounded_to_tenth = round(number, 1) print(rounded_to_tenth) numbers = [5.6789, 3.1415, 2.7183] rounded_numbers = [] for num in numbers: rounded_numbers.append(round(num, 1)) print(rounded_numbers) rounded_numbers_lc = [round(num, 1) for num in numbers] print(rounded_numbers_lc) |

## Conclusion

In this tutorial, we discovered how to **round to the nearest tenth** in Python using the built-in `round()`

function. We also demonstrated how to round a list of numbers to the nearest tenth using either a for loop or list comprehension. The `round()`

function makes it easy and intuitive to round numbers to any desired decimal places.