C program to print multiplication table using while loop and for loop

C Program to Print Multiplication Table Using While Loop and For Loop

In the programming world, loops are the most basic. It is only by mastering the rules of a loop, and then replacing them with a loop when necessary, that we can program something that is reproducible. This article explores how to print a multiplication table in C using two types of loops: the `for` loop and the `while` loop. In fact, both approaches are often used—not only in commercial programming languages such as Basic but also in later ones like C. Both are also very simple and straightforward, helping you to consolidate your programming skills.

 What is a Multiplication Table?

A multiplication table is a table used to define the multiplication operation for an algebraic system. Multiplying 5 by 1, 5 by 2, and so on—all ten answers to these multiplication problems make up the multiplication table of 5. One of the simplest forms is the multiplication table of 1—since 1 multiplied by any number always equals that same number. The product of a number and any of its factors is in this way called a "multiple." For example, multiply a circular disk by its diameter to get the circumference; the product of 3.14 and a disk with a diameter of 1 is 3.14.

• Its is very easy to print multiplication table using c program
• We need one for loop which iterates from 1 to 10
• Inside for loop just multiply numbers and print result in each iteration.
• Lets us see an example C program on how to print multiplication table using for loop.
• multiplication table program in c using for loop
• write a c program to input a number from user and print multiplication table of the given number using for loop. how to print multiplication table of a given number in c programming.

Program #1 : Write a c program to print multiplication table using for loop.Take input from user.

1. #include <stdio.h>
2. int main()
3. {
4.    int n, i;
5.  
6.     printf("Enter a Number ");
7.     scanf("%d",&n);
8.  
9.     for(i=1; i<=10; ++i)
10.     {
11.         printf("%d * %d = %d \n", n, i, n*i);
12.     }
13.      
14.     getch();
15.     
16. }

  
Output:

Program #2: Write a c program to print multiplication table using while loop

write a c program to print multiplication table of any number using for loop

1. #include <stdio.h>
2. int main()
3. {
4.    int n, i;
5.  
6.     printf("Enter a Number ");
7.     scanf("%d",&n);
8.     i=1;
9.     while(i<=10){
10.                 
11.         printf("%d * %d = %d \n", n, i, n*i);
12.         ++i;
13.     }
14.      
15.     getch();
16.     
17. }

  
Output:

1. Enter a Number 
2. 2
3. 2 * 1 = 2
4. 2 * 2 = 4
5. 2 * 3 = 6
6. 2 * 4 = 8
7. 2 * 5 = 10
8. 2 * 6 = 12
9. 2 * 7 = 14
10. 2 * 8 = 16
11. 2 * 9 = 18
12. 2 * 10 = 20
     

Using a `while` Loop to Print a Multiplication Table

The `while` loop is a control flow statement that allows code to be executed repeatedly based on a given condition. If you want to print the multiplication table of a given number using a `while` loop, here is how you can do it in C:

1. #include <stdio.h>
2. 
   
3. int main() {
4.     int number, i = 1;
5. 
   
6.     // Input the number for which you want to print the multiplication table
7.     printf("Enter a number: ");
8.     scanf("%d", &number);
9. 
   
10.     // Use a while loop to print the multiplication table
11.     printf("Multiplication Table of %d using while loop:\n", number);
12.     while (i <= 10) {
13.         printf("%d x %d = %d\n", number, i, number * i);
14.         i++;
15.     }
16. 
    
17.     return 0;
18. }

Explanation:

• Input the Number: The program first asks the user to input a number for which the multiplication table will be generated.
• Initialize `i`: The variable `i` is initialized to 1, which will act as the multiplicand.
• While Loop Condition: As long as `i` is less than or equal to 10, the loop continues.
• Print the Result: Within the loop, the program prints the result of `number * i`.
• increment `i`: After each iteration, `i` is incremented by 1 to prepare for the next run.

Output Example:

1. Enter a number: 7
2. Multiplication Table of 7 using while loop:
3. 7 x 1 = 7
4. 7 x 2 = 14
5. 7 x 3 = 21
6. 7 x 4 = 28
7. 7 x 5 = 35
8. 7 x 6 = 42
9. 7 x 7 = 49
10. 7 x 8 = 56
11. 7 x 9 = 63
12. 7 x 10 = 70

Using a `for` Loop to Print a Multiplication Table

The `for` loop is another control flow statement providing a compact way to write loops. If you want to print the multiplication table of a number using a `for` loop, here is how you can do it in C:

1. #include <stdio.h>
2. 
   
3. int main() {
4.     int number;
5. 
   
6.     // Input the number for which you want to print the multiplication table
7.     printf("Enter a number: ");
8.     scanf("%d", &number);
9. 
   
10.     // Use a for loop to print the multiplication table
11.     printf("Multiplication Table of %d using for loop:\n", number);
12.     for (int i = 1; i <= 10; i++) {
13.         printf("%d x %d = %d\n", number, i, number * i);
14.     }
15. 
    
16.     return 0;
17. }
18. 
    

Explanation:

1. input the Number: Just as in the example with the `while` loop, this program first asks the user to input a number.

2. For Loop Initialization: The `for` loop initializes `i` to 1, checks the condition `i <= 10`, and increments `i` on each iteration.

3. Print the Result: The program prints the result of `number * i` inside the loop.

Output:

1. Enter a number: 7
2. Multiplication Table of 7 using for loop:
3. 7 x 1 = 7
4. 7 x 2 = 14
5. 7 x 3 = 21
6. 7 x 4 = 28
7. 7 x 5 = 35
8. 7 x 6 = 42
9. 7 x 7 = 49
10. 7 x 8 = 56
11. 7 x 9 = 63
12. 7 x 10 = 70

Key Differences Between a `while` Loop and a `for` Loop

Syntax: The syntax of the `for` loop is more succinct than that of the `while` loop. With the `for` loop, we can combine initialization, condition testing, and incrementation all into one line; whereas, in the `while` loop, these steps must be executed separately.

When to Use: Use a `while` loop when you don't know how many times the statement execution will be repeated. Use a `for` loop when you know the number of iterations in advance.

Both loops are powerful tools in the C language for handling repetitive work. By understanding how to use them to print a multiplication table, you can apply these methods to solve more complex problems in the future. Whether you choose a `while` loop or a `for` loop totally depends on your actual use case and coding style. I hope you have fun playing around with the code to understand the range of the multiplication table generated, or even combining the two loops under one program to enhance your understanding of them all. Happy programming!

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