math.J0() Function in Golang With Examples

math.Yn() 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 the order-n Bessel function of the second kind the help of Yn() 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 Yn() function. Syntax:

func Yn(a int, b float64) float64

If you pass +Inf in this function like Yn(a, +Inf), then this function will return 0.
If the value of a≥0 like Yn(a≥0, 0), then this function will return -Inf.
If the value of b<0 like Yn(a, b<0), then this function will return NaN.
If the value of a<0 like Yn(a<0, 0), then this function will return +Tnf(if a is odd) or -Inf(if a is even).
If you pass NaN in this function like Yn(a, NaN), then this function will return NaN.

Example 1:

C

// Golang program to illustrate
// the use of math.Yn() function

package main

import (
    "fmt"
    "math"
)

// Main function
func main() {

    // Finding the order-n Bessel 
    // function of the second kind
    // Using Yn() function
    res_1 := math.Yn(-3, -2)
    res_2 := math.Yn(6, 3)
    res_3 := math.Yn(1, 1.1)
    res_4 := math.Yn(1, math.NaN())
    res_5 := math.Yn(-1, 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)

}

Output:

Result 1:  NaN
Result 2:  -5.436470340703773
Result 3:  -0.698119560067667
Result 4:  NaN
Result 5:  +Inf

Example 2:

C

// Golang program to illustrate
// the use of math.Yn() function

package main

import (
    "fmt"
    "math"
)

// Main function
func main() {

    // Finding the order-n Bessel
    // function of the second kind
    // Using Yn() function
    nvalue_1 := math.Yn(3, 4)
    nvalue_2 := math.Yn(5, 6)

    // Sum of the given numbers
    res := nvalue_1 + nvalue_2
    fmt.Printf("%.3f + %.3f = %.3f", 
            nvalue_1, nvalue_2, res)

}

Output:

-0.182 + -0.197 = -0.379

math.J0() Function in Golang With Examples

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Kirti_Mangal

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