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 are allowed to find base-2 exponential, i.e., 2**a of the specified number with the help of Exp2() 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 Exp2() function.
Syntax:
func Exp2(a float64) float64
- If you pass +Inf in this function, then this function will return +Inf.
- If you pass NaN in this function, then this function will return NaN.
Example 1:
// Golang program to illustrate how to find // base-2 exponential of the given number package main import ( "fmt"
"math"
) // Main function func main() { // Finding base-2 exponential
// of the given number
// Using Exp2() function
res_1 := math.Exp2(3)
res_2 := math.Exp2(-1)
res_3 := math.Exp2(math.Inf(1))
res_4 := math.Exp2(math.NaN())
// Displaying the result
fmt.Printf( "Result 1: %.1f" , res_1)
fmt.Printf( "\nResult 2: %.1f" , res_2)
fmt.Printf( "\nResult 3: %.1f" , res_3)
fmt.Printf( "\nResult 4: %.1f" , res_4)
} |
Output:
Result 1: 8.0 Result 2: 0.5 Result 3: +Inf Result 4: NaN
Example 2:
// Golang program to illustrate how to find // base-2 exponential of the given number package main import ( "fmt"
"math"
) // Main function func main() { // Finding base-2 exponential
// Using Exp2() function
nvalue_1 := math.Exp2(7.3)
nvalue_2 := math.Exp2(-3)
res := nvalue_1 + nvalue_2
fmt.Printf( "%.1f + %.1f = %.1f" ,
nvalue_1, nvalue_2, res)
} |
Output:
157.6 + 0.1 = 157.7
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