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This module converts Arabic numerals into Roman numerals. It currently works for any non-negative integer below 5 billions (up to 4 999 999 999). Zero is represented as "N" (from Classical Latin adverbs "nec" or "non"), like in standard CLDR data.
Number: 1: The number to be converted to Roman numerals. If the parameter passed cannot be interpreted as a numerical value, no output is generated. Example 69105: Number: optional: Message: 2: Message to display for numbers that are too big to be displayed in Roman numerals. (The largest number supported is 4999999.) Default N/A Example Too ...
The Roman numerals, in particular, are directly derived from the Etruscan number symbols: 𐌠 , 𐌡 , 𐌢 , 𐌣 , and 𐌟 for 1, 5, 10, 50, and 100 (they had more symbols for larger numbers, but it is unknown which symbol represents which number). As in the basic Roman system, the Etruscans wrote the symbols that added to the desired ...
Find the Roman numerals for the integer part of the number. If the number is not an integer: Add half of the smallest unit (1/1728) to simulate rounding instead of truncation. Ensure this new result is between 1/1728 and 1727/1728. (actually 1.1/1728 and 1727.1/1728 due to floating point rounding issues)
Grouped by their numerical property as used in a text, Unicode has four values for Numeric Type. First there is the "not a number" type. Then there are decimal-radix numbers, commonly used in Western style decimals (plain 0–9), there are numbers that are not part of a decimal system such as Roman numbers, and decimal numbers in typographic context, such as encircled numbers.
EBNF is used to make a formal description of a formal language such as a computer programming language. They are extensions of the basic Backus–Naur form (BNF) metastasis notation. The earliest EBNF was developed by Niklaus Wirth, incorporating some of the concepts (with a different syntax and notation) from Wirth syntax notation.
In some systems, while the base is a positive integer, negative digits are allowed. Non-adjacent form is a particular system where the base is b = 2.In the balanced ternary system, the base is b = 3, and the numerals have the values −1, 0 and +1 (rather than 0, 1 and 2 as in the standard ternary system, or 1, 2 and 3 as in the bijective ternary system).
For non-integer decimal numbers de is never used: 20,5 kg (read douăzeci virgulă cinci kilograme, "20.5 kg"). For negative numbers all the rules and exceptions above apply unchanged: −20 °C is minus douăzeci de grade Celsius, −5 m is minus cinci metri, −23,4 V is minus douăzeci și trei virgulă patru volți, etc.