en>Yobot: /* History */WP:CHECKWIKI error fixes using AWB (10703)

2015-01-07T07:54:43Z

History: WP:CHECKWIKI error fixes using AWB (10703)

← Older revision		Revision as of 09:54, 7 January 2015
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	~~{{unreferenced\|date=September 2013}}~~
	In [[mathematics]] and [[computing]], a '''[[radix]] point''' (or '''radix character''') is the symbol used in numerical representations to separate the [[integer]] part of a number (to the left of the radix point) from its [[fraction (mathematics)\|fractional]] part (to the right of the radix point). "Radix point" is a general term that applies to all [[radix\|number base]]s. In [[decimal\|base 10]] notation, the radix point is more commonly called the [[decimal point]], where the prefix [[wikt:deci-\|deci-]] implies base 10. Similarly, the term "binary point" is used for [[binary numeral system\|base 2]].

	In [[List of countries where English is an official language\|English-speaking countries]], the radix point is usually a small dot, '''.''', placed either on the baseline or halfway between the baseline and the top of the [[Numeral system\|numerals]]. In other regions, a comma (,) is usually used instead (see [[decimal separator]] for further information).

	~~== Examples ==~~		Adrianne is what you will often call me but Which [http://www.adobe.com/cfusion/search/index.cfm?term=&i+don%27t&loc=en_us&siteSection=home i don't] like when individuals use my full nick name. What I love doing is always to play croquet then now I have opportunity to take on new things. The job I've been occupying suitable for years is an portion clerk. My husband and I chose to reside in Guam but I will have to move in a new year or two. You can find my website here: http://prometeu.net<br><br>my web page - clash of clans hack no survey ([http://prometeu.net Full Survey])
	* In base 10 (decimal): ~~13.625~~
	~~: In this example, 13 is the integer to the left of the radix point, and 625 (i~~.e. ~~625~~/~~1000) is the fractional part to the right~~.

	* In base 2 (binary): 1101.101
	~~: The binary number 1101.101 has the following digits:~~
	~~{\| class="wikitable" style~~=~~"width:300px;table-layout:fixed;text-align:center;"~~
	\|-
	~~! style="width:100px;" \| Power of 2~~
	~~\| 3 \|\| 2 \|\| 1 \|\| 0 \|\| \|\| −1 \|\| −2 \|\| −3~~
	\|-
	~~! Binary digit~~
	~~\| 1 \|\| 1 \|\| 0 \|\| 1 \|\| . \|\| 1 \|\| 0 \|\| 1~~
	\|}

	~~Hence, its decimal value can be calculated as:~~
	~~:<math>~~
	~~\begin{align}~~
	~~1101.101_2~~
	&~~= 1 \times 2^3~~ + ~~1 \times 2^2 + 0 \times 2^1 + 1 \times 2^0 + 1 \times 2^{-1} + 0 \times 2^{-2} + 1 \times 2^{-3} \\~~
	&= ~~1 \times 8 + 1 \times 4 + 0 \times 2 + 1 \times 1 + 1 \times 0.5 + 0 \times 0.25 + 1 \times 0.125 \\~~
	&= ~~8 + 4 + 0 + 1 + 0~~.~~5 + 0 + 0.125 \\~~
	~~&= 13.625_{10}~~
	~~\end{align}~~
	~~</math>~~

	It is now ~~seen that 1101, which is~~ to ~~the left of the radix point,~~ is ~~the binary representation of the decimal number 13~~. ~~To the right of the radix point is 101, which is the binary representation of the decimal fraction 625/1000 (~~or ~~5/8)~~.

	~~== See also ==~~
	* [[Floating point]]

	~~[[Category~~:~~Numeral systems]]~~
	~~[[Category~~:~~Computer arithmetic]]~~

	[[ja:~~小数点]~~]

en>Chadernook: /* Square matrix */ - thought that the complex case for the inversion needed explicit mention somewhere in the article

2014-01-14T15:45:07Z

Square matrix: - thought that the complex case for the inversion needed explicit mention somewhere in the article

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en>John of Reading: Grammar/general fixes, replaced: a upper → an upper using AWB (8277)

2012-08-29T12:32:37Z

Grammar/general fixes, replaced: a upper → an upper using AWB (8277)

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QR decomposition - Revision history

en>Yobot: /* History */WP:CHECKWIKI error fixes using AWB (10703)

en>Chadernook: /* Square matrix */ - thought that the complex case for the inversion needed explicit mention somewhere in the article

en>John of Reading: Grammar/general fixes, replaced: a upper → an upper using AWB (8277)