created 08/04/99

#
Chapter 17 Programming Exercises

## Exercise 1 --- Adding up Squares and Cubes

Write a program that adds up
the squares and adds up the cubes of integers
from 1 to N, where N is entered by the user:

Upper Limit:
5
The sum of Squares is 55
The sum of Cubes is 225

Do this by using just one loop.

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## Exercise 2 --- Power of a number

Write a program that computes `X`^{N}

where `X`

is a floating point number and `N`

is a positive integer.
The program informs the user that `N`

must be positive if
the user enters a negative value.
Of course,

X^{N} = X * X * X * ... * X
--------------------
N times

The user dialog will look something like this:

Enter X
1.3
Enter N
5
1.3 raised to the power 5 is: 3.71293
-------
Enter X
5.6
Enter N
-3
N must be a positive integer.

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## Exercise 3 --- Wedge of Stars

Write a program that writes a wedge of stars.
The user enters the initial number of stars,
and the program writes out lines of stars.
Each line has one few star than the previous line:

Initial number of stars:
7
*******
******
*****
****
***
**
*

Click here to go back to the main menu.

## Exercise 4 --- Holiday Tree

Write a program that writes
a tree made of stars on the terminal:

*
***
*****
*******
*********
***********
*************
***************
***
***
***

Click here to go back to the main menu.

**
End of exercises.**