Purpose: To become familiar with simple expressions and conditional loop statements.

Problem: Modify the program in assignment 2 such that:

You will now add three new math calculations of your choice. Such as, square root, quadratic equation, temperature conversion, etc.  make sure to comply with the rules of mathematics (do not allow div/0 sqrt (negative number), etc.) Let the user be aware of those rules showing instruction on the screen and you will also protect div/0 and sqrt of negative numbers, using control structures.

• Prompt the user to enter the correct input for the calculation about to be performed as you have done in previous assignment.
• The user will have the choice to repeat the calculation or continue on to the next, and they will have to do all of them starting with the addition. (while, do while, to control the repetition). At this point, you do not need a menu. 
• Let the user guess the correct answer and compare it with the answer produced by the computer. If correct or incorrect, give the user a feedback such as Your answer is correct or Sorry, the answer is ???.
• Use the proper formatting for you code, indenting  ifs, while statements, etc.
• Use self explanatory variable names.
• Comment all your variables and the other sections of your program.

A sample interaction with your program would be like:

• Hard copy of you program
• a sample output
• email your source code to wmorales@pcc.edu (do not send attachments) with the subject CS133U - your name - Assignment 3

  Any questions, please let your instructor know.