math.Jn() Function in Golang With Examples

math.Y0() Function in Golang With Examples

Last Updated : 13 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 can find the order-zero Bessel function of the second kind with the help of Y0() 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 Y0() function.

Syntax:

func Y0(a float64) float64

If you pass +Inf in this function like Y0(+Inf), then this function will return 0.
If you pass 0 in this function like Y0(0), then this function will return -Inf.
If the value of a<0, then this function will return NaN.
If you pass NaN in this function like Y0(NaN), then this function will return NaN.

Example 1:

// Golang program to illustrate 
// the use of math.Y0() function 
  
package main 
  
import ( 
    "fmt"
    "math"
) 
  
// Main function 
func main() { 
  
    // Finding the order-zero Bessel 
    // function of the second kind 
    // Using Y0() function 
    res_1 := math.Y0(-3) 
    res_2 := math.Y0(6) 
    res_3 := math.Y0(math.Inf(1)) 
    res_4 := math.Y0(math.NaN()) 
    res_5 := math.Y0(4.6) 
    res_6 := math.Y0(0) 
  
    // Displaying the result 
    fmt.Println("Result 1: ", res_1) 
    fmt.Println("Result 2: ", res_2) 
    fmt.Println("Result 3: ", res_3) 
    fmt.Println("Result 4: ", res_4) 
    fmt.Println("Result 5: ", res_5) 
    fmt.Println("Result 6: ", res_6) 
  
} 

Output:

Result 1:  NaN
Result 2:  -0.28819468398157916
Result 3:  0
Result 4:  NaN
Result 5:  -0.22345995255364678
Result 6:  -Inf

Example 2:

// Golang program to illustrate 
// the use of math.Y0() function 
  
package main 
  
import ( 
    "fmt"
    "math"
) 
  
// Main function 
func main() { 
  
    // Finding the order-zero Bessel 
    // function of the second kind 
    // Using Y0() function 
    nvalue_1 := math.Y0(5.89) 
    nvalue_2 := math.Y0(5) 
  
    // Sum of the given numbers 
    res := nvalue_1 + nvalue_2 
    fmt.Printf("%.3f + %.3f = %.3f", 
            nvalue_1, nvalue_2, res) 
  
} 

Output:

-0.306 + -0.309 = -0.614

math.Jn() Function in Golang With Examples

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