Given the following four functions, how would they be put into a main function (

Question

Given the following four functions, how would they be put into a main function (int main()). Use cout and cin statements. (C++ LANGUAGE ONLY PLEASE)

1.

float computeRoot(float root, int index)
{
float tp, mid;
float low = 0;
float high = root;

do
{
mid = (low + high) / 2;
if (Power(mid, index) > root)
{
high = mid;
}
else
{
low = mid;
}

mid = (low + high) / 2;
tp = (computePower(mid, index) - root);

if (tp < 0)
{//grab absolute value
tp = tp * (-1.0);
}
} while (tp > .000005);//accuracy of our root

return mid;
}

2.

float computePower(float x, int n)
{
float numProduct = 1;
int i;

for (i = 0; i < n; i++)
{
numProduct = numProduct * x;
}

return numProduct;
}

3.

int computeGCD(int a, int b)
{
while (a != b)
{
if (a > b)
{
a = a - b;
}
else
{
b = b - a;
}
}

return a;
}

4.

int computeLCM(int a, int b)
{
int tmp_lcm;

tmp_lcm = ((a * b) / GCD(a, b));

return tmp_lcm;
}

int computeMod(int num1, int num2)
{

float computePerc(float, float)
{
return 0.0f;
}

Explanation / Answer

#include<bits/stdc++.h>
using namespace std;

float computePower(float x, int n)
{
float numProduct = 1;
int i;
for (i = 0; i < n; i++)
{
numProduct = numProduct * x;
}
return numProduct;
}

float computeRoot(float root, int index)
{
           float tp, mid;
           float low = 0;
           float high = root;
           do
           {
           mid = (low + high) / 2;
           if (computePower(mid, index) > root)
           {
           high = mid;
           }
           else
           {
           low = mid;
           }
           mid = (low + high) / 2;
           tp = (computePower(mid, index) - root);
           if (tp < 0)
           {//grab absolute value
           tp = tp * (-1.0);
           }
           } while (tp > .000005);//accuracy of our root
           return mid;
}

int computeGCD(int a, int b)
{
while (a != b)
{
if (a > b)
{
a = a - b;
}
else
{
b = b - a;
}
}
return a;
}

int computeLCM(int a, int b)
{
int tmp_lcm;
tmp_lcm = ((a * b) / computeGCD(a, b));
return tmp_lcm;
}

int main(int argc, char const *argv[])
{
   int b;float a;
   cout<<"Enter a and b ";
   cin>>a>>b;

   cout<<" computeRoot for "<<a<<"&"<<b<<" is "<<computeRoot(a,b);
       cout<<" computePower for "<<a<<"&"<<b<<" is "<<computePower(a,b);
   cout<<" computeLCM for "<<a<<"&"<<b<<" is "<<computeLCM(a,b);
   cout<<" computeGCD for "<<a<<"&"<<b<<" is "<<computeGCD(a,b);

   return 0;
}

===============================================================

Output:

akshay@akshay-Inspiron-3537:~/Chegg$ g++ fou.cpp -lm
akshay@akshay-Inspiron-3537:~/Chegg$ ./a.out
Enter a and b
2 3

computeRoot for 2&3 is 1.25992
computePower for 2&3 is 8
computeLCM for 2&3 is 6
computeGCD for 2&3 is 1akshay@akshay-Inspiron-3537:~/Chegg$ ./a.out
Enter a and b
2 2

computeRoot for 2&2 is 1.41422
computePower for 2&2 is 4
computeLCM for 2&2 is 2
computeGCD for 2&2 is 2

================================================================

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