Option 1: Write a program to convert a natural number to its Roman number equivalent. See https://en.wikipedia.org/wiki/Roman_numerals for the rules concerning the construction of Roman numbers using Roman numerals.
Option 2: Write a program that expects an integer as input and outputs the integer in word form. For example: 0 = zero; 1 = one; 21 = twenty one; 105 = one hundred and five; 1317 = one thousand, three hundred and seventeen
Option 3: Write a module that implements a simple RPN calculator, without using 'eval'. The implementation should evaluate expressions provided in Reverse Polish (Postfix) Notation. For example: 1 1 + 3 * 2 3 + * = 30; 2 1 2 + * = 6;
The module should at a minimum implement addition, subtraction, multiplication and division and should round answers to three decimal places using the following rule: If the value of the digit in the fourth decimal place is less than 5, then truncate the result after the third decimal place.
If the digit in the fourth decimal place is 5 or greater, then round up; Provide a client for the implementation that solicits multi-line user input at a prompt and uses the implementation to evaluate expressions. The user should be able to split the expression over a number of lines, with the final result displayed only when the user enters a line ending with ‘=’.
Ruby >= 3.0.0
- To get a local copy of the repository please run the following commands on your terminal:
git clone https://github.com/lfmnovaes/desafio1.git - Go to the cloned directory with
cd desafio1 - Run
ruby optionX.rb, which X is a number >= 1 and <= 3
- Using Test Unit Assertions
ruby test_optionX.rb
👤 Luís Fernando
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