How to python round in Go

The round() function in Python is used to round off a given number to a specified number of digits. It takes two arguments, the first being the number to be rounded and the second being the number of digits to round to. If the second argument is not provided, the function rounds the number to the nearest integer. The function uses the standard rounding rules, where numbers ending in 5 are rounded up if the preceding digit is odd and rounded down if the preceding digit is even. The function returns a float if the second argument is provided, otherwise it returns an integer. Keep reading below to learn how to python round in Go.

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Python ’round’ in Go With Example Code

Python’s built-in `round()` function is a convenient way to round numbers to a specified number of decimal places. But what if you’re working in Go and need to perform the same operation? Fortunately, Go provides a similar function in its `math` package.

To round a number in Go, you can use the `Round()` function from the `math` package. This function takes a float64 value and rounds it to the nearest integer. If the value is exactly halfway between two integers, `Round()` rounds to the nearest even integer.

If you need to round to a specific number of decimal places, you can use the `RoundToEven()` function from the same package. This function takes two arguments: the value to be rounded and the number of decimal places to round to.

Here’s an example of how to use `Round()` and `RoundToEven()` in Go:

package main


import (

    "fmt"

    "math"

)
func main() {

    // Round to the nearest integer

    fmt.Println(math.Round(3.5)) // Output: 4

    fmt.Println(math.Round(4.5)) // Output: 4

// Round to two decimal places fmt.Println(math.RoundToEven(3.14159, 2)) // Output: 3.14 fmt.Println(math.RoundToEven(3.14559, 2)) // Output: 3.15 }

As you can see, rounding in Go is quite straightforward thanks to the `math` package. Whether you need to round to the nearest integer or a specific number of decimal places, Go has you covered.

Equivalent of Python round in Go

In conclusion, the equivalent function to Python’s round() in Go is the math.Round() function. This function takes a float64 value as input and returns the nearest integer value. It follows the standard rounding rules, where values ending in .5 are rounded up to the nearest even integer. While the syntax and usage of the round() function in Python and math.Round() function in Go may differ, they both serve the same purpose of rounding off floating-point numbers to the nearest integer. As a developer, it is important to be familiar with the equivalent functions in different programming languages to ensure efficient and accurate coding.