On a conventional keyboard, Roman numerals are entered by holding down the Shift key while typing the lowercase equivalent of the Roman numeral. Instead of holding down the Shift key, the Caps Lock key can be used. Holding down the Shift key while typing the lowercase letter “m” to make the Roman numeral “M” is an example of how to type a Roman numeral on a keyboard.
I, V, X, L, C, D, and M are the seven symbols that make up Roman numerals. Each of these symbols is associated with a numerical value. The numbers one, five, 10, 50, 100, 500, and 1,000 are represented by I, V, X, L, C, D, and M, respectively. The numeric system’s formulation of all other values is based on the combination of these key symbols.
The value of joined symbols is calculated by adding them together. For example, III is three ones equaling three, while XIII is a ten and three ones equaling thirteen. In the Roman number system, zero has no representation. For example, the symbol for two 100s, a five, and three ones in the number 208 is CCVIII.
Symbols are arranged in ascending order of value from left to right, starting with the largest. However, in a few specific circumstances, subtractive notation can be used to limit the number of characters that are repeated in a row.
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