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Finding Sine Value of Specified Number in Golang
  • Last Updated : 01 Apr, 2020

Go language provides inbuilt support for basic constants and mathematical functions to perform operations on the numbers with the help of the math package. You are allowed to find the sine of the specified radian argument with the help of Sin() function provided by the math package. So, you need to add a math package in your program with the help of the import keyword to access the Sin() function.

Syntax:

func Sin(y float64) float64
  • If you pass +Inf or -Inf in this function, then this function will return NaN(not-a-number).
  • If you pass NaN in this function, then this function will return NaN.
  • If you pass 0 in this function, then this function will return 0.

Example 1:

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// Golang program to illustrate how to find
// the sine of the given radian argument
  
package main
  
import (
    "fmt"
    "math"
)
  
// Main function
func main() {
  
    // Finding the sine
    // of the given value
    // Using Sin() function
    res_1 := math.Sin(math.Pi / 4)
    res_2 := math.Sin(math.Inf(-3))
    res_3 := math.Sin(0)
    res_4 := math.Sin(math.NaN())
    res_5 := math.Sin(math.Pi)
  
    // Displaying the result
    fmt.Printf("Result 1: %.1f", res_1)
    fmt.Printf("\nResult 2: %.1f", res_2)
    fmt.Printf("\nResult 3: %.1f", res_3)
    fmt.Printf("\nResult 4: %.1f", res_4)
    fmt.Printf("\nResult 5: %.1f", res_5)
}

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Output:

Result 1: 0.7
Result 2: NaN
Result 3: 0.0
Result 4: NaN
Result 5: 0.0

Example 2:

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// Golang program to illustrate how to find
// the sine of the given radian argument
  
package main
  
import (
    "fmt"
    "math"
)
  
// Main function
func main() {
  
    // Finding sine of the given number
    nvalue_1 := math.Sin(math.Pi / 3)
    nvalue_2 := math.Sin(math.Pi / 2)
  
    // Sum of the given values
    res := nvalue_1 + nvalue_2
  
    // Displaying results
    fmt.Printf("%.1f + %.1f = %.1f"
           nvalue_1, nvalue_2, res)
  
}

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Output:

0.9 + 1.0 = 1.9



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