Computer Science I - Programming Assignment 4
Due Wednesday, November 18th
Summary
For this assignment you will create a web page called roman.html that will convert Roman numerals to Arabic numerals (the ones we normally use as numbers) and vice versa (to use a Latin phrase). It should look something like this:
For this assignment Roman numerals are defined as follows:
- M is 1000
- D is 500
- C is 100
- L is 50
- X is 10
- V is 5
- I is 1
- All other numbers are expressed as sequences of the above symbols:
- MCLXVI is 1166
- XXXX is 40
- MM is 2000
- and so on
For an extra challege, you may use "modern" Roman numerals, which Have different representations for a few numbers than the "simple" Roman numerals (IV for 4, IX for 9, XL for 40, etc.).
Helpful Hints
- Going from Roman to Arabic numerals will require a loop that takes each character in the Roman numeral string and adds it's numeric value to a running sum.
- Going from Arabic to Roman numerals is similar to the process of making change (quarters first, then dimes, then nickels, then pennies). Again, you will need a loop that repeatedly subtracts 1000, 500, 100, 50, etc. from the Arabic Numeral and adds M, D, C, L, etc. to the Roman numeral string.
- If you want to try using "modern" Roman numerals, make sure you get your code working with the "simple" Roman numerals first and save a copy of your working code.
- You might find the substring method for strings useful for finding IV, IX, XL, etc.
Instructions for Handing In the Program
Please hand in the following:
- a printed copy of your completed roman.html in class on the due date
- an electronic copy of this file via FileZilla in the handin folder in your home directory on the CS server.