Question

(Rounding Numbers) An application of function floor is rounding a value to the nearest

Answer 1

Answer:

Following are the program in the C++ Programming Language.

//header file

#include <iostream>

//header file for floor function

#include<math.h>

//using namespace

using namespace std;

//define main function

int main() {

 //set and initialize float type variable and value

 float a=12.3, c=1.45, d=165.345;

 //initialize it in other variable

 float x=a;

 //set float variable to store floor value

 float y=floor(x+5);

 //display output with message

 cout<<"before "<<x<<" and after the floor "<<y<<endl;

 //set float variable to store floor value

 y=floor(c+5);

 //display output with message

 cout<<"before "<<c<<" and after the floor "<<y<<endl;

 //set float variable to store floor value

 y=floor(d+5);

 //display output with message

 cout<<"before "<<d<<" and after the floor "<<y;

}

Output:

before 12.3 and after the floor 17

before 1.45 and after the floor 6

before 165.345 and after the floor 170

Explanation:

Here, we define the "main()" function and inside the main function.

• Set and initialize three float data type variables "a", "c", "d" to 12.3, 1.45, 165.345.
• Set the float data type variable "x" to store the value of the variable "a"
• Again set float type variable "y" to store the floor value.
• Then, Print message and output of the variable.
• Again we repeat point 3 and 4 two times.