1. Latin (Roman) numerals are a numeral system that originated in ancient Rome and remained the usual way of writing numbers throughout Europe well into the Late Middle Ages.
2. Greek (Hellenic) numerals, are a system of writing numbers using the letters of the Greek alphabet.
3. A simple to use tool, for three-way conversion between Arabic (decimal), Latin (Roman) and Greek (Hellenic) numeral systems.
4. Numbers in this system are represented by combinations of letters from the Latin alphabet.
5. This is the most common system for the symbolic representation of numbers in the world today.
6. Special designed custom keyboards for each type of numeral system.
7. Arabic (decimal) numerals are the ten digits: 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9.
8. Modern usage employs seven symbols, each with a fixed integer value.
9. In modern Greece, they are still used for ordinal numbers and in contexts similar to those in which Roman numerals are still used elsewhere in the West.