math.J0() 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 first kind with the help of J0() 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 J0() function.
Syntax:
func J0(a float64) float64
- If J0(±Inf), then this function will return 0.
- If J0(0), then this function will return 1.
- If J0(NaN), then this function will return NaN.
Example 1:
package main
import (
"fmt"
"math"
)
func main() {
res_1 := math.J0(math.Inf(-1))
res_2 := math.J0(math.Inf(1))
res_3 := math.J0(5)
res_4 := math.J0(math.NaN())
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: -0.18
Result 4: NaN
Example 2:
package main
import (
"fmt"
"math"
)
func main() {
nvalue_1 := math.J0(2.0)
nvalue_2 := math.J0(4.1)
res := nvalue_1 + nvalue_2
fmt.Printf( "%.2f + %.2f = %.2f" ,
nvalue_1, nvalue_2, res)
}
|
Output:
0.22 + -0.39 = -0.16
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