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1. Introduction
Calculating the power of a number is fundamental in numerous scientific, engineering, and mathematical applications. In this guide, we'll implement a C program that computes the power of a number without using the built-in pow function.
2. Program Overview
Our program will:
1. Request the user to input a base number and an exponent.
2. Calculate the power of the base number raised to the exponent.
3. Showcase the result to the user.
3. Code Program
#include <stdio.h> // Include the Standard I/O library
int main() { // Commence the program
int base, exponent, result = 1; // Declare the base, exponent, and the result variable
// Query the user for the base and the exponent
printf("Enter base: ");
scanf("%d", &base);
printf("Enter exponent: ");
scanf("%d", &exponent);
// Calculate power using a loop
for(int i = 0; i < exponent; i++) {
result *= base; // Multiply result with base repeatedly
}
printf("%d raised to the power of %d = %d\n", base, exponent, result); // Exhibit the computed result
return 0; // Conclude the program efficiently
}
Output:
Enter base: 3
4. Step By Step Explanation
1. #include <stdio.h>: We bring in the standard input and output library for our I/O functions.
2. int main(): The starting point of our program.
3. Variable Declaration:
- base: To store the base number.
- exponent: To store the power to which the base will be raised.
- result: Initialized to 1, this variable will store the final result after calculations.
4. User Input: We invite the user to enter the base and exponent values.
5. Power Calculation:
- A for loop iterates exponent times.
- Inside the loop, the result is multiplied by the base during each iteration. This mechanism effectively raises the base to the specified power.
6. Output: After calculations, the program reveals the outcome.
The design used in this program accentuates the utility of loops to simulate repeated multiplication, allowing us to compute the power of a number efficiently.
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