# Returning Values
## Questions
1. What is the value of `cubeByVolume(9)`?
  1. 9^3 = 729.
2. What is the value of `cubeByVolume(cubeByVolume(2))`?
a. `cubeByVolume(8)` = 512.
3. Using the `pow()` function, write an alternate implementation of the `cubeByVolume` function.
  ```
  double cubeByVolume(double sideLength) {
    return pow(sideLength, 3.0);
  }
  ```
4. Define a function called `squareArea` that computes the area of a square of a given `sideLength`.
  ```
  double squareArea(double sideLength) {
    return pow(sideLength, 2.0);
  }
  ```
5. Consider this function:
  ```
  int mystery( int x, int y) {
    double result = (x + y ) / ( y - x);
    return result;
	}
  ```
  What is the result of `mystery(2,3)` and `mystery(3,5)`.
  a. 5 and 4.
6. Implement a function that returns the minimum of three values.
  ```
  // Prototype
  int findTheSmallest(int, int, int);
  // Implementation
  int findTheSmallest(int x, int y, int z) {
    if (x < y && x < z) {
      return x;
    } else if (y < x && y < z) {
      return y;
    }
    return z;
  }
  // Function call
  findTheSmallest(1,2,3);
  // => 1
  ```
  
## Attached Code
```
#include <iostream>
#include <cmath>

using namespace std;

double steinbergPow( double, double);

int main()
{
	double result1;
	double result2;
	
	result1 = pow( 2.0, 4.0 );
	result2 = steinbergPow( 2.0, 4.0 );
	
	cout << "pow: " << result1 << endl;
	cout << "steinbergPow:  " << result2 << endl;

	cout << endl;
	system("pause");
	return EXIT_SUCCESS;
}

/**
Raises base to the power
@param base is the base
@param power is the exponent
*/
double steinbergPow( double base, double power )
{
	double sum = 1;
	for( int i = 0; i < power ; i++ )
	{
		sum = sum * base;
	}
	return sum;
}

/*
Computes the volume of a cube.
@param sideLength the side length of a cube
@return the volume
*/
double cubeByVolume( double sideLength )
{
	double volume = sideLength * sideLength * sideLength;
	return volume;
}
```