Write a C++ program that prompts the user for a positive integer greater than 1

Question

Write a C++ program that prompts the user for a positive integer greater than 1 and displays the square root, the square and the cube of all numbers from 2 to the entered number in a tabular format similar to the sample output in figure 1. Use the sqrt() and pow() functions. The square root value must be displayed with 4 places after the decimal.
Your program should loop until the user enters 0 to quit. Your program should also check for invalid input from the user ( 1 or a negative number) and keep prompting until a 0 to quit or a value greater than 1 is entered.
Restrictions: Your solution must contain each type of loop at least once (while, do .. while and for loop).

Following is a sample output to illustrate the expected behavior of your program.

Write a C++ program that prompts the user for a positive integer greater than 1 and displays the square root, the square and the cube of all numbers from 2 to the entered number in a tabular format similar to the sample output in figure 1. Use the sqrt() and pow() functions. The square root value must be displayed with 4 places after the decimal. Your program should loop until the user enters 0 to quit. Your program should also check for invalid input from the user ( 1 or a negative number) and keep prompting until a 0 to quit or a value greater than 1 is entered. Restrictions: Your solution must contain each type of loop at least once (while, do.. while and for loop). Following is a sample output to illustrate the expected behavior of your program.

Explanation / Answer

#include<iostream.h>
#include<math.h>
#include<iomanip.h>

void calc(int a)
{
    float sq=sqrt(a);
    cout<<a<<" ";
    std::cout<<std::setprecision(4)<<sq<<" ";
    cout<<pow(a,2)<<" "<<pow(a,3)<<" ";
}

int main()
{
    int n,b=0;
    do{
        cout<<"Enter a positive number greater than 1(or 0 to quit)";
        cin>>n;
        if(n==1||n<0)
        {
        cout<<" -->"<<n<<"is not greater than 1 ";
        }
        else
        {
        cout<<"Number "<<"Square root "<<"Sqaure "<<"Cube ";
        while(b<60)
        {
                  cout<<"-";
                  b++;         
        }
         cout<<" ";
            for(int i=2;i<=n;i++)
            {
                    calc(i);
                    }
            }
        }
    while(n!=0);
}

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