1
1/2 One Half (二分の一) Rurouni Kenshin Opening 2 LIVE Makoto Kawamoto
::2009/02/26::
2
One half Makoto Kawamoto
::2012/01/10::
3
Makoto Kawamoto 1/2 - One Half (Samurai X Opening)
::2012/05/03::
4
Julianna Barwick - One Half (Official Video)
::2013/08/08::
5
Candyland Fractions one half
::2012/09/02::
6
Shoko Nakagawa 1/2 One Half (Cover) Subs Esp
::2014/01/04::
7
Julianna Barwick - "One Half" (Official Audio)
::2013/06/18::
8
One Direction - Half A Heart
::2013/12/22::
9
One Direction - Half A Heart (Full Song + Lyrics)
::2013/11/20::
10
Kawamoto Makoto - One Half
::2011/12/22::
11
One Direction - Half a Heart (Music Video)
::2013/12/11::
12
Virus.DOS.OneHalf
::2013/09/23::
13
Chandler Parsons hits 10 straight three-pointers in ONE HALF!
::2014/01/25::
14
Julianna Barwick - One Half (Live on KEXP)
::2013/12/25::
15
One Direction - Half A Heart (Lyrics)
::2013/11/23::
16
Half a heart One Direction Traducida Letra en español
::2013/12/05::
17
Julianna Barwick - One Half
::2013/08/20::
18
One Direction - Half a Heart - Lyrics + pictures
::2013/11/19::
19
[TIME2SUB] "One and a Half Summer" drama preview - 2PM Nichkhun (eng subs)
::2013/09/19::
20
Virus.DOS.Onehalf Followup/Removal Attempt
::2013/09/25::
21
One Direction - Half A Heart (Lyrics + Pictures) *HD*
::2013/11/25::
22
Ian Eastwood | @Ian_Eastwood Choreography | "Half A Heart"- @OneDirection | One Direction
::2013/12/24::
23
One Direction - Half A Heart Lyric Video
::2014/01/24::
24
Robo-One Half-Time Fun #1
::2010/04/06::
25
One & a Half Summer official pilot highlights (2PM Nichkhun, Miss A Jia)
::2013/08/13::
26
One Direction - Half a Heart (Lyrics and Pictures) (Album Midnight Memories)
::2013/12/07::
27
[FULL] One And Half Summer - Khuntoria version
::2013/10/05::
28
BBCP Noel Vermillion Combo Movie 「One Half Decade」
::2013/07/20::
29
Two And A half Men Bloopers (Season 1,2,3,4,5,7) All in one Together
::2013/01/23::
30
One Direction-Half a heart (Official Video Clip)
::2013/12/22::
31
One Direction - Half A Heart (Lyrics)
::2013/11/22::
32
One Direction - Half a Heart (Tradução + Lyrics) (Slowed Down + Rain)
::2013/12/02::
33
One Direction - Half A Heart [traducida al español]
::2013/11/22::
34
One and a Half Man Preview (Game of Thrones)
::2011/06/24::
35
One Direction - Half a Heart - Traduction française
::2013/12/01::
36
Candyland Fractions: one half video
::2012/09/06::
37
One Direction - Half a Heart - (Subtitulada al español) + imagenes
::2013/11/23::
38
One half (Cover latino) ver. Fernanda Martin
::2011/07/19::
39
Blind Pilot - Half Moon Lyrics
::2012/06/10::
40
One Direction Half a Heart Karaoke
::2014/01/21::
41
Nine One half Weeks (cena - strip-tease)
::2013/02/14::
42
Best of Two and a Half Men Part One: The Entire Cast
::2011/09/18::
43
One Direction - ''Half A Heart'' Cover by Frida Hunshammer
::2013/11/30::
44
One Direction - Half A Heart (Arabic Subtitled - مترجمة إلي العربية) | Midnight Memories
::2013/12/10::
45
One Direction- Half A Heart traduzione italiana
::2013/11/27::
46
Half A Heart- One Direction (Empty Arena)
::2013/11/28::
47
One Direction - Half A Heart (Tradução)
::2013/12/04::
48
One Half (1/2) - Intro (HOW TO PLAY - GUITAR)
::2011/01/02::
49
ONE & A HALF GODS
::2011/09/12::
50
Split brain with one half atheist and one half theist
::2010/06/03::
From Wikipedia, the free encyclopedia
One half is the irreducible fraction resulting from dividing one by two (½), or any number by its double; multiplication by one half is equivalent to division by two . Conversely, division by one half is equivalent to multiplication by two, or "doubling". It appears often in mathematical equations, recipes, measurements, etc. Half can also be said to be one part of something divided into two equal parts.
For instance, the area S of a triangle is computed
S = ½ × base × perpendicular height.
One half also figures in the formula for calculating figurate numbers , such as triangular numbers and pentagonal numbers :
½ × n [(s - 2) n - (4 - s )]
and in the formula for computing magic constants for magic squares
M _{2} (n ) = ½ × [n (n ^{2} + 1 )].
The Riemann hypothesis states that every nontrivial complex root of the Riemann zeta function has a real part equal to ½.
One half has two different decimal expansions, the familiar 0.5 and the recurring 0.49999999... It has a similar pair of expansions in any even base. It is a common trap to believe these expressions represent distinct numbers: see the proof that 0.999... equals 1 for detailed discussion of a related case.
Particularities in writing and language [ edit ]
Postal stamp, Ireland, 1940: one halfpenny postage due.
½ is also one of the few fractions to get a key of its own on typewriters (see fractions ). It also gets its own point in some early extensions of ASCII at 171; and in Unicode , it gets its own code point at U+00BD (decimal 189) in the C1 Controls and Latin-1 Supplement block, and a cross-reference in the Number Forms block, which contains some other fractions.
One half is as well one of the few fractions which is commonly expressed in natural languages by suppletion rather than regular derivation; compare English one half with regular formations like one sixth from six .
See also [ edit ]
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