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
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