Hartley (unit): Difference between revisions
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The hartley supercedes the ban with IEC 80000-13 |
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{{Merge to|ban (unit)|discuss=Talk:Hartley (unit)#Suggested merge into Ban (unit)|date=December 2014}} |
{{Merge to|ban (unit)|discuss=Talk:Hartley (unit)#Suggested merge into Ban (unit)|date=December 2014}} |
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The '''hartley''' (symbol '''Hart''') is a unit of information defined by International Standard [[IEC 80000-13]] of the [[International Electrotechnical Commission]]. One hartley is the information content of an event if the [[probability]] of that event occurring is 1/10.<ref>{{cite web|title=IEC 80000-13:2008|url=http://www.iso.org/iso/catalogue_detail?csnumber=31898|publisher=[[International Organization for Standardization]]|accessdate=21 July 2013}}</ref> It is therefore equal to the information contained in one [[decimal digit]] (or [[ban (unit)|dit]]), assuming ''[[A priori probability|a priori]]'' equiprobability of each possible value. |
The '''hartley''' (symbol '''Hart''') is a unit of information defined by International Standard [[IEC 80000-13]] of the [[International Electrotechnical Commission]], which is equal to and supersedes the [[ban (unit)|ban]]. One hartley is the information content of an event if the [[probability]] of that event occurring is 1/10.<ref>{{cite web|title=IEC 80000-13:2008|url=http://www.iso.org/iso/catalogue_detail?csnumber=31898|publisher=[[International Organization for Standardization]]|accessdate=21 July 2013}}</ref> It is therefore equal to the information contained in one [[decimal digit]] (or [[ban (unit)|dit]]), assuming ''[[A priori probability|a priori]]'' equiprobability of each possible value. |
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:1 Hart ≈ 3.322 [[shannon (unit)|Sh]] ≈ 2.303 [[nat (unit)|nat]]. |
:1 Hart ≈ 3.322 [[shannon (unit)|Sh]] ≈ 2.303 [[nat (unit)|nat]]. |
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==See also== |
==See also== |
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* [[ban (unit)|ban]] |
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* [[bit]] |
* [[bit]] |
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Revision as of 20:02, 14 February 2015
 | It has been suggested that this article be merged into ban (unit). (Discuss) Proposed since December 2014. |
The hartley (symbol Hart) is a unit of information defined by International Standard IEC 80000-13 of the International Electrotechnical Commission, which is equal to and supersedes the ban. One hartley is the information content of an event if the probability of that event occurring is 1/10.[1] It is therefore equal to the information contained in one decimal digit (or dit), assuming a priori equiprobability of each possible value.
The hartley is named after Ralph Hartley.
See also
References
- ^ "IEC 80000-13:2008". International Organization for Standardization. Retrieved 21 July 2013.