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math.Jn() Function in Golang With Examples

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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-n Bessel function of the first kind with the help of Jn() 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 Jn() function.

Syntax:

func Jn(a int, b float64) float64

Example 1:




// Golang program to illustrate
// the math.Jn() function
package main
  
import (
    "fmt"
    "math"
)
  
// Main function
func main() {
  
    // Finding order-n Bessel 
    // function of the first kind
    // Using Jn() function
    res_1 := math.Jn(1, math.Inf(-1))
    res_2 := math.Jn(3, math.Inf(1))
    res_3 := math.Jn(4, 5)
    res_4 := math.Jn(1, math.NaN())
  
    // Displaying the result
    fmt.Printf("\nResult 1: %.2f", res_1)
    fmt.Printf("\nResult 2: %.2f", res_2)
    fmt.Printf("\nResult 3: %.2f", res_3)
    fmt.Printf("\nResult 4: %.2f", res_4)
  
}


Output:

Result 1: 0.00
Result 2: 0.00
Result 3: 0.39
Result 4: NaN

Example 2:




// Golang program to illustrate
// the math.Jn() function
package main
  
import (
    "fmt"
    "math"
)
  
// Main function
func main() {
  
    // Finding order-n Bessel 
    // function of the first kind
    // Using Jn() function
    nvalue_1 := math.Jn(2, 3.3)
    nvalue_2 := math.Jn(4, 5.6)
  
    // Sum of the given numbers
    res := nvalue_1 + nvalue_2
    fmt.Printf("%.2f + %.2f = %.2f",
           nvalue_1, nvalue_2, res)
  
}


Output:

0.48 + 0.39 = 0.87


Last Updated : 13 Apr, 2020
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