Difference between revisions of "Spiral"
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==Origin== | ==Origin== | ||
| − | medieval Latin ''spīrāl-is'' ([ | + | medieval Latin ''spīrāl-is'' ([https://en.wikipedia.org/wiki/Albertus_Magnus Albertus Magnus], a1255), whence also French ''spiral'', Italian ''spirale'', Spanish ''espiral''. |
| − | *[ | + | *[https://en.wikipedia.org/wiki/16th_century 1551] |
==Definitions== | ==Definitions== | ||
*1a : winding around a [[center]] or pole and [[gradually]] receding from or approaching it <the spiral curve of a watch spring> | *1a : winding around a [[center]] or pole and [[gradually]] receding from or approaching it <the spiral curve of a watch spring> | ||
| − | :b : [ | + | :b : [https://en.wikipedia.org/wiki/Helix helical] |
:c : spiral-bound <a spiral notebook> | :c : spiral-bound <a spiral notebook> | ||
*2: of or relating to the advancement to higher [[levels]] through a series of [[cyclical]] movements | *2: of or relating to the advancement to higher [[levels]] through a series of [[cyclical]] movements | ||
==Description== | ==Description== | ||
In [[mathematics]], a '''spiral''' is a curve which [[emanates]] from a central [[point]], getting [[progressively]] farther away as it revolves around the point. | In [[mathematics]], a '''spiral''' is a curve which [[emanates]] from a central [[point]], getting [[progressively]] farther away as it revolves around the point. | ||
| − | While a "spiral" and a "[ | + | While a "spiral" and a "[https://en.wikipedia.org/wiki/Helix helix]" are distinct as technical terms, a helix is sometimes [[described]] as a spiral in non-technical usage. |
[[Category: Mathematics]] | [[Category: Mathematics]] | ||
Latest revision as of 02:37, 13 December 2020
Origin
medieval Latin spīrāl-is (Albertus Magnus, a1255), whence also French spiral, Italian spirale, Spanish espiral.
Definitions
- 1a : winding around a center or pole and gradually receding from or approaching it <the spiral curve of a watch spring>
- b : helical
- c : spiral-bound <a spiral notebook>
Description
In mathematics, a spiral is a curve which emanates from a central point, getting progressively farther away as it revolves around the point. While a "spiral" and a "helix" are distinct as technical terms, a helix is sometimes described as a spiral in non-technical usage.
