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Roman
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Roman (main variations)
   

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Value	Symbol	Entity	Can be Written	Alternative
1		Ⅰ	I
5		Ⅴ	V
10		Ⅹ	X
50		Ⅼ	L
100		Ⅽ	C
500		Ⅾ	D  |)
1000		Ⅿ	M
5000		ↁ	|))
10000		ↂ	((|))
50000		ↇ	|)))
100000		ↈ	(((|)))

• The original roman numerals stopped at (1000) because the Roman's rarely used numbers greater than about MMMDCCCLXXXVIII (3888). In modern times, extra symbols were added to allow larger numbers.
• The numerals and both refer to 1000. It does not matter which of the two is used. A modern interpretation of Roman Numerals suggests using when the numeral is followed by a higher value and when followed by equal or lower value.
• The entitiy codes have been included to assist computer programmers. However, many fonts do not include all of the special characters and could produce unexpected results when viewed with older browsers.
• The Can be Written column suggests an acceptable way of typing a numeral when special chraters are not available. If any numeral replacement contains multiple characters, you should add a space between every numeral set in your Roman number, e.g ((|)) |)) |)) M C

Value	Symbol	Entity	Can be Written	Alternative
1		Ⅰ	I
5		Ⅴ	V
10		Ⅹ	X
50		Ⅼ	L
100		Ⅽ	C
500		Ⅾ	D
1000		Ⅿ	M
5000		Ⅴ̅	Ⅴ̅
10000		Ⅹ̅	Ⅹ̅
50000		Ⅼ̅	Ⅼ̅
100000		Ⅽ̅	Ⅽ̅

• The original roman numerals stopped at (1000) because the Roman's rarely used numbers greater than about MMMDCCCLXXXVIII (3888). In modern times, extra symbols were added to allow larger numbers.
• The numerals and both refer to 1000. It does not matter which of the two is used. A modern interpretation of Roman Numerals suggests using when the numeral is followed by a higher value and when followed by equal or lower value.
• The entitiy codes have been included to assist computer programmers. However, they are problematic
  • There are no unicode characters that directly represent     etc.
  • It is possible to create simalar characters using the base character followed by ̅ because the code adds an overscore line above the previous letter
  • Many browesers have problems rendering overscored characters correctly. Some try to show the line above the charater but the line is out of position, often overlapping the next character
• The"Can be Written" column suggests a method of typing a numeral when the correct symbol is unavailable. The overscored characters are based on an entity+̅ combination

Value	Symbol	Entity	Can be Written	Alternative
1		ⅰ	i
5		ⅴ	v
10		ⅹ	x
50		ⅼ	l
100		ⅽ	c
500		ⅾ	d
1000		ⅿ	m
5000		ࡾ̅	ⅴ̅
10000		ࢃ̅	ⅹ̅
50000		ⅼ̅	ⅼ̅
100000		ⅽ̅	ⅽ̅

• The original roman numerals stopped at (1000) because the Roman's rarely used numbers greater than about mmmdccclxxxviii (3888). In modern times, extra symbols were added to allow larger numbers.
• The numerals and both refer to 1000. It does not matter which of the two is used. A modern interpretation of Roman Numerals suggests using when the numeral is followed by a higher value and when followed by equal or lower value.
• The entitiy codes have been included to assist computer programmers. However, they are problematic
  • There are no unicode characters that directly represent     etc.
  • It is possible to create simalar characters using the base character followed by ̅ because the code adds an overscore line above the previous letter
  • Many browesers have problems rendering overscored characters correctly. Some try to show the line above the charater but the line is out of position, often overlapping the next character
• The"Can be Written" column suggests a method of typing a numeral when the correct symbol is unavailable. The overscored characters are based on an entity+̅ combination