Chapter 3.3, Problem 2E

(a)

Program Plan Intro

Program description:

The following program will determine the value of int(a) where value of a=10.6.

Explanation of Solution

Program

//included header file
#include <iostream>
//included namespace
usingnamespacestd;
//main function
intmain()
{
//declare variable a with value 10.6
floata=10.6;
//determine and print the value of int(a)
cout<<int(a);
//exiting from program
return0;
}

Explanation:

In the above code, the value of a is 10.6, which is floating-point type value. The int(a) will typecast the value of a to integer type so that it will print only integer part only.

Sample Output:

  

(b)

Program Plan Intro

The following program will determine the value of int(b) where the value of b=13.9.

Explanation of Solution

Program

//included header file
#include <iostream>
//included namespace
usingnamespacestd;
//main function
intmain()
{
//declare variable b with value 13.9
floatb=13.9;
//determine and print the value of int(b)
cout<<int(b);
//exiting from program
return0;
}

Explanation:

In the above code, the value of b is 13.9, which is floating-point type value. The int(b) will typecast the value of a to integer type so that it will print only integer part only.

Sample Output:

  

(c)

Program Plan Intro

The following program will determine the value of int(c) where the value of c=-3.42.

Explanation of Solution

Program

//included header file
#include <iostream>
//included namespace
usingnamespacestd;
//main function
intmain()
{
//declare variable c with value -3.42
floatc=-3.42;
//determine and print the value of int(c)
cout<<int(c);
//exiting from program
return0;
}

Explanation:

In the above code, the value of c is -3.42, which is floating-point type value. The int(c) will typecast the value of a to integer type so that it will print only integer part only.

Sample Output:

  

(d)

Program Plan Intro

The following program will determine the value of int(a+b) where the value of a=10.6 and b=13.9.

Explanation of Solution

Program

//included header file
#include <iostream>
//included namespace
usingnamespacestd;
//main function
intmain()
{
//declare variable a with value 10.6 and bwith value 13.9
float a=10.6, b=13.9;
//determine and print the value of int(a+b)
cout<<int(a+b);
//exiting from program
return0;
}

Explanation:

In the above code, the value of a is 10.6 and b is 13.9, which is floating-point type value. The int(a+b) will first add the value a and b then typecast the value of its result to an integer type and then print the value using cout statement.

Sample Output:

  

(e)

Program Plan Intro

The following program will determine the value of int(a+b) where the value of a=10.6, b=13.9 and c=-3.42.

Explanation of Solution

Program

//included header file
#include <iostream>
//included namespace
usingnamespacestd;
//main function
intmain()
{
//declare variable a with value 10.6, b with 13.9 and c with -3.42
float a=10.6, b=13.9, c=-3.42;
//determine and print the value of int(a)+b+c
cout<<int(a)+b+c;
//exiting from program
return0;
}

Explanation:

In the above code, the value of a is 10.6, b is 13.9, and c is -3.42, which is floating-point type value. The int(a)+b+c will typecast the value of a to an integer type and then add and print the integer value of a, b and c.

Sample Output:

  

(f)

Program Plan Intro

The following program will determine the value of int(a+b)+c where the value of a=10.6, b=13.9 and c=-3.42.

Explanation of Solution

Program

//included header file
#include <iostream>
//included namespace
usingnamespacestd;
//main function
intmain()
{
//declare variable a with value 10.6, b with 13.9 and c with -3.42
float a=10.6, b=13.9, c=-3.42;
//determine and print the value of int(a+b)+c
cout<<int(a+b)+c;
//exiting from program
return0;
}

Explanation:

In the above code, the value of a is 10.6, b is 13.9, and c is -3.42, which is floating-point type value. The int(a+b) will first add the value a and b then typecast the value of its result to an integer type and then add the value of c to it.

Sample Output:

  

(g)

Program Plan Intro

The following program will determine the value of int(a+b+c) where the value of a=10.6, b=13.9 and c=-3.42.

Explanation of Solution

Program

//included header file
#include <iostream>
//included namespace
usingnamespacestd;
//main function
intmain()
{
//declare variable a with value 10.6, b with 13.9 and c with -3.42
float a=10.6, b=13.9, c=-3.42;
//determine and print the value of int(a+b+c)
cout<<int(a+b+c);
//exiting from program
return0;
}

Explanation:

In the above code, the value of a is 10.6, b is 13.9, and c is -3.42, which is floating-point type value. The int(a+b+c) will first add the value of a, b and c then typecast the value of its result to an integer type and print the value using cout statement.

Sample Output:

  

(h)

Program Plan Intro

The following program will determine the value of float(int(a))+b where the value of a=10.6and b=13.9.

Explanation of Solution

Program

//included header file
#include <iostream>
//included namespace
usingnamespacestd;
//main function
intmain()
{
//declare variable a with value 10.6 and b with 13.9
float a=10.6, b=13.9, c=-3.42;
//determine and print the value of float(int(a))+b 
cout<<float(int(a))+b ;
//exiting from program
return0;
}

Explanation:

In the above code, the value of a is 10.6and b is 13.9, which is floating-point type value. The float(int(a))+bwill first typecast the value of a to an integer type and then typecast this integer value to float and then add value b to it and print the value using cout statement.

Sample Output:

  

(i)

Program Plan Intro

The following program will determine the value of float(int(a+b)) where the value of a=10.6and b=13.9.

Explanation of Solution

Program

//included header file
#include <iostream>
//included namespace
usingnamespacestd;
//main function
intmain()
{
//declare variable a with value 10.6 and b with 13.9
float a=10.6, b=13.9, c=-3.42;
//determine and print the value of float(int(a+b))  
cout<<float(int(a+b))  ;
//exiting from program
return0;
}

Explanation:

In the above code, the value of a is 10.6and b is 13.9, which is floating-point type value. The float(int(a+b))will first add the value of a+b and then typecast the value of its result to an integer type and then typecast this integer value to float and print the value using cout statement.

Sample Output:

  

(j)

Program Plan Intro

The following program will determine the value of abs(a)+abs(b) where the value of a=10.6and b=13.9.

Explanation of Solution

Program

//included header file
#include <iostream>
#include <cmath>
//included namespace
usingnamespacestd;
//main function
intmain()
{
//declare variable a with value 10.6 and b with 13.9
float a=10.6, b=13.9, c=-3.42;
//determine and print the value of abs(a)+abs(b) 
cout<<abs(a)+abs(b)   ;
//exiting from program
return0;
}

Explanation:

In the above code, the value of a is 10.6and b is 13.9, which is floating-point type value. The abs(a) and abs(b)function are used to get the absolute value of a and b then add this absolute value with each other and print the value using cout statement.

Sample Output:

  

(j)

Program Plan Intro

The following program will determine the value of sqrt(abs(a-b)) where the value of a=10.6and b=13.9.

Explanation of Solution

Program

//included header file
#include <iostream>
#include <cmath>
//included namespace
usingnamespacestd;
//main function
intmain()
{
//declare variable a with value 10.6 and b with 13.9
float a=10.6, b=13.9, c=-3.42;
//determine and print the value of sqrt(abs(a-b)) 
cout<<sqrt(abs(a-b));
//exiting from program
return0;
}

Explanation:

In the above code, the value of a is 10.6and b is 13.9, which is floating-point type value. The abs(a-b)function will determine the absolute value of a-b then the sqrt()function will determine the square root value of this resultand print the value using cout statement.

Sample Output: