The **`Sin` function** in the Go programming language is used to find the sine value of a number. 

To use this function, you must import the `math` package in your file and access the `Sin` function within it using the `.` notation (`math.Sin`). Here, `Sin` is the actual function, while `math` is the Go package that stores the definition of this function.

# Function definition

The definition of the `Sin` function inside the `math` package is:


# Parameters
The `Sin` function takes a single argument of type float64. This argument represents the angle whose sine value you want to find.




# Return value

The `Sin` function returns a single value of type float64. This value represents the sine value of the argument. The possible range of all return values is between -1 and 1 (both inclusive).

> An exception to the above statements is when you pass something as an argument that is infinity or `NAN`. In these cases, the `Sin` function returns a `NAN.`


# Example



The following is a simple example in which we find out the sine value of 25:

package main

import ("fmt"
		"math")

func main() {
	x := 25.0
	y := math.Sin(x)
	fmt.Print(y)
}

What is the Sin function in Golang?

The Sin function in Go calculates the sine of a float64 angle, returning a float64 value between -1 and 1.