C Program to Multiply Two Floating-Point Numbers (updated)

In this article, the product of two floating-point numbers entered by the user is calculated and printed on the screen. To understand this example, you should have the knowledge of the following C programming topics:

C Variables, Constants and Literals
C Data Types
C Input Output (I/O)
C Programming Operators

Program to Multiply Two Numbers

#include <stdio.h>
int main() {
    double a, b, product;
    printf("Enter two numbers: ");
    scanf("%lf %lf", &a, &b);  
 
    // Calculating product
    product = a * b;

    // %.2lf displays number up to 2 decimal point
    printf("Product = %.2lf", product);
    
    return 0;
}

Output

Enter two numbers: 2.4
1.12
Product = 2.69

In this program, the user is asked to enter two numbers which are stored in variables a and b respectively.

printf(“Enter two numbers: “);
scanf(“%lf %lf”, &a, &b);
Then, the product of a and b is evaluated and the result is stored in product.

product = a * b;
Finally, product is displayed on the screen using printf().

printf(“Product = %.2lf”, product);
Notice that, the result is rounded off to the second decimal place using %.2lf conversion character.

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