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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;
}
输出
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.