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Title	Test Details Pattern Title
Expression	^\d*\.?((25)|(50)|(5)|(75)|(0)|(00))?$
Description	This is a pattern to search and verify that a decimal number ends with a 25, 50, 75, 0 or 00. It does match for a nothing after decimal also but I guess thats ok !!
Matches	0.25 | .75 | 123.50
Non-Matches	.77 | 1.435
Author	Rating: narsi v

Title	Test Details Pattern Title
Expression	^[+-]?([0-9]*\.?[0-9]+|[0-9]+\.?[0-9]*)([eE][+-]?[0-9]+)?$
Description	A regular expression that matches numbers. Integers or decimal numbers with or without the exponential form.
Matches	23 | -17.e23 | +.23e+2
Non-Matches	+.e2 | 23.17.5 | 10e2.0
Author	Rating: Erik Pettersson

Title	Test Details Pattern Title
Expression	^\d*[0-9](|.\d*[0-9]|,\d*[0-9])?$
Description	This is permit all decimal number, exclude all alphanumeric caracter
Matches	123456.123456 | 123456,123456 | 123456
Non-Matches	123a.123 | 123a,123 | a
Author	Rating: Not yet rated. Hugues Gauthier

Title	Test Details Pattern Title
Expression	^\s*(((\d*\.?\d*[0-9]+\d*)|([0-9]+\d*\.\d*) )\s*[xX]\s*){2}((\d*\.?\d*[0-9]+\d*)|([0-9]+\d*\.\d*))\s*$
Description	This validates Length times Width times Height measurements, which consists of 3 whole or decimal numbers separated by an x.
Matches	1.1 x 4.35 x 5.0 | 1 x 2 x 3 | 4.75 x 300.25 x 0
Non-Matches	z.56 x 6 x 7 | 1 xx 2 x 3 | 1 by 2 by 3
Author	Rating: Not yet rated. Rod Early

Title	Test Details Pattern Title
Expression	(?=([\W]*[\w][\W]*\b))\s(?=\d\.|\d\b)
Description	This RegExp matches a space (" ") character with lookahead condition if there is an ASCII text in front of it and it is followed by a single decimal number which in turn is followed by a dot or nothing. It's useful to seperate scientific notation numbers from a text, i.e. when classifying with the bow toolkit. [EDIT 18.09.2004] There was indeed an error in the second lookahead. Changed |\b to |\d\b
Matches	ROOT 4.873624764e-34 | `1234567 890-= 3.8765e-34543 | ~! @ # $ % ^ & ( % )_+ 3.345e-2384754
Non-Matches	rstuvwxyz 754.234e-23 | yz754.234e-23 | yz .234e-23
Author	Rating: Benjamin J. J. Voigt

Title	Test Details Pattern Title
Expression	^\d*\d?((5)|(0))\.?((0)|(00))?$
Description	Based on a pattern I found on this site, this pattern verifies that a number is a multiple of 5. Basically checks the last number before the decimal point to see if it's a 5 or 0. Also works on non-decimal numbers. Thanks to Narsi V for the base pattern http://www.regxlib.com/REDetails.aspx?regexp_id=82
Matches	15.00 | 20 | 200.00
Non-Matches	23.00 | 12 | 50.80
Author	Rating: Not yet rated. Adam Weber

Title	Test Details Pattern Title
Expression	^[0-9]*(\.)?[0-9]+$
Description	it will check for the +ve decimal numbers
Matches	1 | 123 | 132.132
Non-Matches	1.2.2 | -123
Author	Rating: himraj love

Title	Test Details Decimal number
Expression	^[\+\-]?[0-9]+([\,\.][0-9]+)?$
Description	Accepts integer and decimal numbers, the decimal delimiter beeing either a point or a comma, prefixed or not by a plus or minus sign.
Matches	«1» «-1» «+1» «1.0» «-1.0» «+1.0» «1,0» «-1,0» «+1,0»
Non-Matches	«abc» «1e2»
Author	Rating: Not yet rated. Luc Boudreau

Title	Test Details Decimal numbers
Expression	^[+-]?\d+(\.\d{1,4})? *%?$
Description	An expression for .NET regular expression validation controls intended to facilitate the entry of percentage values both a whole numbers or as their decimal representations. Also compatible with the default US format for string formatting for percentages. Recommend that if you intended accept a value passing this express that you strip the percentage signs and take measures to ensure that any whole values are converted to percentages.
Matches	123 | 256.89 | 2% | 0.2% | 25% | 0.1 | 0 | +1.9% | -2
Non-Matches	.1 | %1 | 1.0 | 2,345
Author	Rating: Mirza Muhammad Saleem

Title	Test Details Dollar Currency Pattern
Expression	^(([1-9]\d{0,2}(\,\d{3})*|([1-9]\d*))(\.\d{2})?)|([0]\.(([0][1-9])|([1-9]\d)))$
Description	Building on Joe Lynwood's Regex which makes use of a combination of Michael Ash's US Dollar amount and Bri Gipson's eliminating zero input, I've added support for values between 0 and 1. Being relatively new to regex, I hope someone would be able to spot any discrepancies with the code and its supposed function. Edit 1: Corrected mis-match with non-decimal numbers.
Matches	1,234,567.89 | 1234567.89 | 9.99 | 0.34 | 0.10 | 1234
Non-Matches	1,2345,67.89 | 1234,345,678.0 | 0 | 0.00 | 123. | .123
Author	Rating: Fong C.D.

Title	Test Details Colon-delimited string of positive integers and/or decimal numbers
Expression	^(([1-9][0-9]*)|((([0])|([1-9][0-9]*))\.[0-9]+)|((([1-9][0-9]*)|((([0])|([1-9][0-9]*))\.[0-9]+))\:)*(([1-9][0-9]*)|((([0])|([1-9][0-9]*))\.[0-9]+)))$
Description	Accepts a colon-delimited string of positive integers and/or decimal numbers in any combination. Spaces are not permitted. Decimal numbers of less than 1 must be prefixed with a zero (e.g. accepts 0.1, but not .1), and numbers with a trailing decimal point are not accepted (e.g. accepts 3.0, but not 3.). A lone zero is not accpeted (e.g. accepts 1.02:3:4.5, but not 1.02:0:4.5). Developed from a similar expression by Steven Smith on this site.
Matches	1.2 | 0.1:0.5:56:6.70 | 3:6.78954:1:2:3
Non-Matches	0.1:.5:56 | -6.70:3. | 5: 0.1:0
Author	Rating: Not yet rated. Phil Heneghan

Title	Test Details Real Float Number
Expression	[+-]?+(?>\d++\.?+\d*+|\d*+\.?+\d++)
Description	This regex is designed to fail fast (using possessive quantifiers) while still matching a floating decimal number all the time. Won't match scientific notation or fractions. Can be combined with other patterns. Note: This site's tester does not support them. If your language does not support possessive quantifiers try the following: (?>[+-]?)(?>(?>\d+)(?>\.?)(?>\d*)|(?>\d*)(?>\.?)(?>\d+))
Matches	+7 | -7.7 | .7 | 7. | etc
Non-Matches	1/7 | 7e10
Author	Rating: Trinithis

Title	Test Details Multiples of 0.5
Expression	(^\d{1,3}$)|(\d{1,3})\.?(\d{0,0}[0,5])
Description	This is used to match the values that are multiples of 0.5 upto single digit decimal number.
Matches	444.5 | 444 | 1 | 2 | 3 | 3.5
Non-Matches	444.6 | 444.09 | 444.999
Author	Rating: Not yet rated. Siva Krishna

Title	Test Details Decimal number with 2 digits after comma
Expression	^[+-]?\d+(\,\d{2})? *?$
Description	This regex accepts decimal number with exactly 2 numbers after comma and without point.
Matches	0,00 0,99 -99,99 999999 -9 0 999999999,99
Non-Matches	9,9 0,0
Author	Rating: Not yet rated. jose

Title	Test Details Metric and Time Dimensions
Expression	(?<Nbr>[\+-]?((\d*\,\d+)|(\d*\.\d+)|\d+))\s*(?<Unit>mm|cm|dm|min|km|s|m|h)
Description	Matches decimal numbers (english or german writing) followed by metric or time units (mm, cm, dm, m, km, s, min and h) in labels surrounded by any digit.
Matches	345,3m, 345.m, 345m, 345,5 m
Non-Matches	abc, ABC, 0-9
Author	Rating: Thomas Pietsch

Title	Test Details Decimal Number
Expression	^([1-9]([0-9])?)(\.(([0])?|([1-9])?|[1]([0-1])?)?)?$
Description	Expression to match decimal number with 2 digits.
Matches	1.0, 1.1 .. 1.11 ... 99.0, 99.1, 99.2, ... 99.11
Non-Matches	0, 0.0. 0.11, 99.12, 1.12, 100, 100.11
Author	Rating: Girish Yepuri

Title	Test Details Decimals with optional positive/negative sign, miles separator (,) and exponential notation
Expression	/^[-+]?((\d*|((\d{1,3})?,(\d{3},)*(\d{3})))?)(\.\d*)?([eE][-+]\d+)?$/
Description	Valids decimal numbers with optional support for: 1.- Use a positive/negative sign (123.78 -123.09 +0.123 are valid) 2.- Use a miles separator (12345.789 12,345.099 +12,345 are valid) 2.- Use a exponential notation (+0.123E+4 -12.345e-4 are valid)
Matches	123.78 -123.09 +0.123 12345.789 12,345.099 +0.123E+4
Non-Matches	56,88 12e3 09,98.99
Author	Rating: Not yet rated. Jose Antonio Gonzalez Prieto

Title	Test Details Decimal Number
Expression	^[+-]?\d*(([,.]\d{3})+)?([,.]\d+)?([eE][+-]?\d+)?$
Description	Matches any integer or decimal number with either dot (.) or comma (,) as decimal- and thousands-separator. Also accepts Scientific notation.
Matches	-4,233.2832e12 | +232 | -0.12e-5
Non-Matches	abc | @41 | 0x423
Author	Rating: jteeuwen

Title	Test Details CIDR notation (subnet)
Expression	/^(([01]?\d?\d|2[0-4]\d|25[0-5])\.){3}([01]?\d?\d|2[0-4]\d|25[0-5])\/(\d{1}|[0-2]{1}\d{1}|3[0-2])$/
Description	Validates subnet specified by CIDR notation. A valid CIDR notation begins with the IP address followed by a '/' character and a decimal number specifying the length, in bits, of the subnet mask or routing prefix (number from 0 to 32).
Matches	192.168.100.1/24 | 0.0.0.0/0
Non-Matches	192.168.100.1/33 | 0.0.0.0/90
Author	Rating: Eugene Kardash

Title	Test Details Decimal Number
Expression	^\s*(?<sign>[+-]?)(?:0*?)(?<abs_value>(?:(?:[1-9]\d*)|0)?(?:(?<=\d)\.|\.(?=\d))(?:(?:(?:\d*[1-9])|0)?)?|(?:(?:[1-9]\d*)|0)?)(?:0*)\s*$
Description	Parses a decimal number. returns two match groups <sign> and <abs_value>. Accepts empty string.
Matches	0 | 00 | 000 | 0001 | 01 | 10 | 1000 | .0 | 0. | 0.0 | 00.0 | 0.00 | 0.0000 | 000.0 | 0.11000 | 00011.000 | 1.2 | 0.5 | 00.05 | 1 | -5 | -.8 | +9. | -00012.033000 |
Non-Matches	. | 0.1e+1 | 1e-2
Author	Rating: Not yet rated. Mihail Poltorihin