In this program, we will create a user-defined function to calculate the power of a given number using recursive and return the result to the calling function.
The source code to calculate the power of a given number using recursion is given below. The given program is compiled and executed successfully.
// Golang program to calculate the power of a
// given number using recursion
package main
import "fmt"
func CalculatePower(num int, power int) int {
var result int = 1
if power > 0 {
result = num * (CalculatePower(num, power-1))
}
return result
}
func main() {
var base, power int
var result int
fmt.Printf("Enter value of base: ")
fmt.Scanf("%d", &base)
fmt.Printf("Enter value of power: ")
fmt.Scanf("%d", &power)
result = CalculatePower(base, power)
fmt.Printf("%d to the power of %d is: %d\n", base, power, result)
}
Output:
Enter value of base: 3
Enter value of power: 7
3 to the power of 7 is: 2187
Explanation:
In the above program, we declare the package main. The main package is used to tell the Go language compiler that the package must be compiled and produced the executable file. Here, we imported the fmt package that includes the files of package fmt then we can use a function related to the fmt package.
func CalculatePower(num int, power int)int{
var result int=1
if(power>0){
result=num*(CalculatePower(num,power-1))
}
return result
}
In the above code, we implemented a recursive function CalculatePower() that accepts a number and power as an argument and returns the result to the calling function.
In the main() function, we read the base number and power from the user, and then we called CalculatePower() function to calculate the power of the base number and print the result on the console screen.
Program/Source Code:
The source code to calculate the power of a given number using recursion is given below. The given program is compiled and executed successfully.
Output:
Explanation:
In the above program, we declare the package main. The main package is used to tell the Go language compiler that the package must be compiled and produced the executable file. Here, we imported the fmt package that includes the files of package fmt then we can use a function related to the fmt package.
In the above code, we implemented a recursive function CalculatePower() that accepts a number and power as an argument and returns the result to the calling function.
In the main() function, we read the base number and power from the user, and then we called CalculatePower() function to calculate the power of the base number and print the result on the console screen.
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