Question

Write a program in c language to find the value of a raised to power b where a and b are natural numbers using while loop?

Answer 1

Hi there!
Here's the answer:

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¶ While loop

• It is one of iterative(or) looping (or) Repetition statement.

• while statements will be executed repeatedly as long as the expression remains true.

• SYNTAX :
while (exp)
{
//Body of Loop
}

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¶¶¶ Program implementation:

¶ a^(b) = a × a × a × …………

- Here, b times a is multiplied with itself.
- Base is ' a ' & exponent is 'b'.
- [Let R be the result of a^(b) in the program i.e., a variable is needed to store the result.

*** One variable is required to control the while loop repetition.
[ Let it be ' i ' in the program ]

*** Here no. of times of repetition of loop depends on the no. of times the base 'a' is multiplied with its exponent 'b'.

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/* C- program to find result of a^b using while loop */

#include< stdio.h>
#include<conio.h>

int main()
{ // main function begins


// Declare Variables
…int a, b, R, i;

// Read values a & b from User
…printf("\n Enter Value for base a :");
…scanf("%d",&a);

…printf("\n Enter Value for Exponent b :");
…scanf("%d",&b);

// initialise Result 'R' and while loop control variable 'i'
…R = 1;
…i = 1;

//loop begins
…while( i <= b )
……{
………R = R × a;
………i++;
……}
//loop ends

//print result
…printf("The value of a raised to power b is : %d", R);
…return 0;

}// main function ends.


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