The Roman numeral system is an ancient way of representing numbers. The base symbols are I (1), V (5), X (10), L (50), C (100), D (500) and M (1000).
Questions tagged [roman-numerals]
273 questions
190
votes
16 answers
How do you match only valid roman numerals with a regular expression?
Thinking about my other problem, i decided I can't even create a regular expression that will match roman numerals (let alone a context-free grammar that will generate them)
The problem is matching only valid roman numerals.
Eg, 990 is NOT "XM",…
Daniel Magliola
- 30,898
- 61
- 164
- 243
131
votes
17 answers
How can you customize the numbers in an ordered list?
How can I left-align the numbers in an ordered list?
1. an item
// skip some items for brevity
9. another item
10. notice the 1 is under the 9, and the item contents also line up
Change the character after the number in an ordered list?
1) an…
grom
- 15,842
- 19
- 64
- 67
94
votes
94 answers
Convert a number into a Roman numeral in JavaScript
How can I convert integers into roman numerals?
function romanNumeralGenerator (int) {
}
For example, see the following sample inputs and outputs:
1 = "I"
5 = "V"
10 = "X"
20 = "XX"
3999 = "MMMCMXCIX"
Caveat: Only support numbers between 1 and…
DD77
- 1,367
- 2
- 13
- 25
75
votes
29 answers
Converting Integers to Roman Numerals - Java
This is a homework assignment I am having trouble with.
I need to make an integer to Roman Numeral converter using a method. Later, I must then use the program to write out 1 to 3999 in Roman numerals, so hardcoding is out. My code below is very…
user1752197
- 781
- 1
- 6
- 4
66
votes
32 answers
Converting integers to roman numerals
I'm trying to write a function that converts numbers to roman numerals. This is my code so far; however, it only works with numbers that are less than 400. Is there a quick and easy way to do this conversion, or extend my existing code so that it…
Kavithova L
- 661
- 1
- 5
- 3
37
votes
9 answers
Numbers to Roman Numbers with php
I need to transform ordinary numbers to Roman numerals with php and I have this code:
'I', "number" => 1),
array("letter" => 'V', "number" => 5),
…
LukasMakey
- 373
- 1
- 3
- 5
31
votes
10 answers
How to sort an array of Roman numerals?
I have an array containing Roman numerals (as strings of course). Like this:
$a = array('XIX', 'LII', 'V', 'MCCXCIV', 'III', 'XIII');
I'd like to sort them according to the numeric values of these numerals, so the results should be something…
kapa
- 77,694
- 21
- 158
- 175
30
votes
14 answers
How to convert a Roman numeral to integer in PHP?
Using PHP, I'd like to convert a string containing a Roman number into its integer representation. I need this because I need to make calculations on them.
Wikipedia on Roman numerals
It would suffice to only recognize the basic Roman numeral…
kapa
- 77,694
- 21
- 158
- 175
30
votes
3 answers
Convert roman numerals to numbers in R
In R, there is a great function as.roman in the very base setup:
as.roman(79)
# [1] LXXIX
Is there an inverse function that would convert roman numerals to numbers?
(I know I can write it myself but I prefer to use already prepared or preferably…
Tomas
- 57,621
- 49
- 238
- 373
22
votes
3 answers
How to convert integer value to Roman numeral string?
How can I convert an integer to its String representation in Roman numerals in C ?
Vishwanath Dalvi
- 35,388
- 41
- 123
- 155
21
votes
4 answers
How do you find a roman numeral equivalent of an integer
How do you find a roman numeral equivalent of an integer. Is there a java library which provides this capability?
I did find a similar question, but I would prefer an out of the box API abstraction for this issue. Its just painful to handle all…
Jason
- 12,229
- 20
- 51
- 66
17
votes
31 answers
Code Golf New Year Edition - Integer to Roman Numeral
Write a program that take a single command line argument N and prints out the corresponding Roman Numeral.
Eg N = 2009 should print MMIX.
Let's say this should work for 0 < N < 3000.
(Had fun playing my first ever round of code golf with the…
user4812
- 5,942
- 9
- 30
- 35
15
votes
24 answers
Roman numerals to integers
In data sometimes the same product will be named with a roman numeral while other times it will be a digit.
Example Samsung Galaxy SII verses Samsung Galaxy S2
How can the II be converted to the value 2?
Dennis Puzak
- 3,726
- 3
- 23
- 22
10
votes
1 answer
Need to change section to Roman, but keep Arabic for for subsection and subsubsection
I need to change my section numbering from Arabic, to Roman, beet keep the Arabic numbering in subsections and subsubsections. For example:
I. Section
1.1. Subsection
1.1.1. Subsubsection
II. Section
2.1 Subsection
...
So I know that with sections i…
Hiro Protagonist
- 103
- 1
- 1
- 4
10
votes
2 answers
How can I make a roman numeral list in Markdown?
How do I create a roman numeral list in Markdown?
Like this...
i) Higher per acre field of sugarcane.
ii) Higher sucrose content of sugarcane.
iii) Lower Labor cost.
iv) Longer crushing period.
besrabasant
- 2,422
- 6
- 27
- 41