- 関
- halves
WordNet
- partially or to the extent of a half; "he was half hidden by the bushes"
- one of two divisions into which some games or performances are divided: the two divisions are separated by an interval
- (of siblings) related through one parent only; "a half brother"; "half sister"
- consisting of one of two equivalent parts in value or quantity; "a half chicken"; "lasted a half hour"
- partial; "gave me a half smile"; "he did only a half job"
- divide by two; divide into halves; "Halve the cake"
- (of books) having the back bound in one material and the sides in another
- reduced wage paid to someone who is not working full time
- the second of two halves of play (同)last half
PrepTutorEJDIC
- 〈C〉〈U〉『半分』,2分の1;約半分 / 〈U〉《時刻を表す数詞と共に用いて》『半』,30分 / 〈C〉《おもに英》(2学期制の学校での)前(後)期 / 〈C〉(競技などの)前(後)半;(野球で1イニングの)表(裏) / 〈C〉=halfback / 『半分の』 / 不十分な,中途はんぱな / 『半ば』,半分[だけ] / 半時間だけ,30分だけ / 不完全に / かなり,ほとんど
- …‘を'半分に分ける / (人と)…‘を'半分ずつ分け合う《+『名』+『with』+『名』〈人〉》 / …‘を'半減する
- halfの複数形
- 半パイント / 《話》ちび
- 異母姉妹,腹違い
- おや,はああ,ああ(驚き・喜び・疑い・ためらいなどを表す声)
- hectare; hectares
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア(Wikipedia)』「2013/12/16 10:01:22」(JST)
[Wiki ja表示]
ハーフ(英: half)は、英語で「2分の1」「半分」の意。
- ハーフ・ダラー - アメリカ合衆国の50セント硬貨のこと。カジノでよく使用される。
- 国籍・民族・人種の異なる親を持つ人物を指す和製英語。「半人(前)」との意味を含むことから、差別的であるとも指摘される(混血#日本社会における混血を参照のこと)。時系列の言葉の発生順として「ハーフ」は「ニューハーフ」に対して対語となる「旧ハーフ」と言える。
- イヌなどの動物の人気種血統が他種と混ざるものに用いることもある。
- ゴルフにおける、9ホールのプレイ。通常の18ホール1ラウンドに対して。
- 試合時間が前半と後半に分かれているスポーツにおける競技時間の半分(使用例:「45分ハーフ」等。詳細はサッカー#試合時間 (第7条)など、各競技の該当箇所を参照のこと)。
- ハーフタイム - 試合時間が前半と後半に分かれているスポーツにおいて、前半と後半の間にとられる休憩時間のこと。
- ハーフバック - サッカーやラグビーなどのスポーツにおける中盤の選手
- ハーフマラソン - 21.0975km=42.195/2kmを走る陸上競技の種目。
- ハーフスピードスケート - 通常のスピードスケート靴より刃が短く、主に室内リンクで使用される。
- 写真撮影におけるハーフ判。一般的であるライカ判に対して(写真フィルム#規格によるもの→「35mm」→「スチール写真用としての35ミリフィルム」の項を参照のこと)。
- ハーフ・ロック - ウイスキーの飲み方の一つ。ロックを入れたグラスに、ウイスキーと水を同量入れて作る。
関連項目[編集]
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[Wiki en表示]
"Half" redirects here. For other uses, see Half (disambiguation).
For the computer virus, see OneHalf (computer virus).
One half
|
prefixes |
hemi- (from Greek)
semi-/demi- (from Latin)
|
Binary |
0.1 or 0.011111111111... |
Decimal |
0.5 or 0.499999999999... |
Dozenal |
0;6 or 0;5BBBBBBBBBBBB... |
Hexadecimal |
0.8 or 0.7FFFFFFFFFFF... |
Continued fraction |
[0; 1, 1] or [0; 2] |
Single-precision
floating point
|
3F000000 (hex) =
00111111000000000000000000000000 (binary)
|
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. 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
- M2(n) = ½ × [n (n2 + 1 )].
The Riemann hypothesis states that every nontrivial complex root of the Riemann zeta function has a real part equal to 1/2.
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]
- List of numbers
- Division by two
References[edit]
UpToDate Contents
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English Journal
- Identification and bioactive potential of endophytic fungi isolated from selected plants of the Western Himalayas.
- Qadri M, Johri S, Shah BA, Khajuria A, Sidiq T, Lattoo SK, Abdin MZ, Riyaz-Ul-Hassan S.SourceMicrobial Biotechnology Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu, 180001 India.
- SpringerPlus.Springerplus.2013 Dec;2(1):8. Epub 2013 Jan 11.
- This study was conducted to characterize and explore the endophytic fungi of selected plants from the Western Himalayas for their bioactive potential. A total of 72 strains of endophytic fungi were isolated and characterized morphologically as well as on the basis of ITS1-5.8S-ITS2 ribosomal gene se
- PMID 23420270
- Degradation pattern of gibberellic acid during the whole process of tea production.
- Chen H, Liu X, Yang D, Yin P.SourceTea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China; Tea Quality and Supervision Testing Center, Ministry of Agriculture, Hangzhou 310008, China. Electronic address: thean27@mail.tricaas.com.
- Food chemistry.Food Chem.2013 Jun 1;138(2-3):976-81. doi: 10.1016/j.foodchem.2012.10.110. Epub 2012 Nov 12.
- The residues of gibberellic acid (GA(3)) in tea shoots, made tea, and tea infusion were determined by ultra-performance liquid chromatography tandem mass (UPLC-MS/MS) to study its degradation pattern during tea planting, processing, and brewing. The dissipation rate of GA(3) was described using firs
- PMID 23411203
- Differential methylation of E2 binding sites in episomal and integrated HPV 16 genomes in preinvasive and invasive cervical lesions.
- Chaiwongkot A, Vinokurova S, Pientong C, Ekalaksananan T, Kongyingyoes B, Kleebkaow P, Chumworathayi B, Patarapadungkit N, Reuschenbach M, von Knebel Doeberitz M.SourceDepartment of Microbiology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand; Department of Applied Tumor Biology, Institute of Pathology, University of Heidelberg, Heidelberg, Germany.
- International journal of cancer. Journal international du cancer.Int J Cancer.2013 May 1;132(9):2087-94. doi: 10.1002/ijc.27906. Epub 2012 Nov 26.
- Enhanced expression of the HPV 16 E6-E7 oncogenes may trigger neoplastic transformation of the squamous epithelial cells at the uterine cervix. The HPV E2 protein is a key transcriptional regulator of the E6-E7 genes. It binds to four E2 binding sites (E2BSs 1-4) in the viral upstream regulatory reg
- PMID 23065631
- Sputum analysis: Non-invasive early lung cancer detection.
- D'Urso V, Doneddu V, Marchesi I, Collodoro A, Pirina P, Giordano A, Bagella L.SourceINT-CROM, Pascale Foundation National Cancer Institute, Cancer Research Center, Mercogliano, Italy.
- Journal of cellular physiology.J Cell Physiol.2013 May;228(5):945-51. doi: 10.1002/jcp.24263.
- Lung cancer is the leading cause of cancer-related deaths over the world, characterized by a very high mortality rate. Molecular technique development tries to focus on early detection of cancers by studying molecular alterations that characterize cancer cells. Worldwide lung cancer research has foc
- PMID 23086732
Japanese Journal
- Optical Selection Rules in Spin–Orbit Coupled Systems on Honeycomb Lattice
- With More Than Half of Exhibitors and Visitors Coming From Outside Germany, ICE Europe Has Become One of the World's Most Important International Converting Exhibitions
- Convertech International : functioal film, paper, foil, and converting technology 1(6), 30-37, 2017-07
- NAID 40021271075
- 表面機械加工およびその後の溶接熱加工により生じる表面加工層内部残留応力分布のX線的評価 (特集 X線材料強度)
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- halfとは。意味や和訳。[名](複 halves 〔hǽvz | hɑ'ːvz〕)1(1)半分,2分の1, 半分のもの(a [one]) half of an orangeオレンジの半分the former [the latter] half of the 16th century16世紀の前半[後半]The half [Half] of ten is five.10の ...
Related Pictures
★リンクテーブル★
[★]
- 二等分する、半々にする。均等分けにする。半分に削減する、半減させる。
- 関
- half