Difference between revisions of "Center Command"

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<noinclude>{{Manual Page|version=4.2}}</noinclude>
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<noinclude>{{Manual Page|version=5.0}}</noinclude>
{{command|conic}}
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{{command|conic|US_version=Center|non-US_version=Centre}}
{{Alternate Language|region=US|page_type=Command |US_version=Center|UK_version=Centre|Aus_version=Centre}}
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; Center( <Conic> )
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:Returns the center of a circle, ellipse, or hyperbola.
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:{{Example|1= <code>Center(x^2 + 4 y^2 + 2x - 8y + 1 = 0)</code><br/> {{langnote|non-US|2=<code>Centre(x^2 + 4 y^2 + 2x - 8y + 1 = 0)</code>}}<br/> returns point ''A = (-1, 1)''}}
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{{Note|1= See also [[File:Mode midpoint.svg|link=|20px]] [[Midpoint or Center Tool|Midpoint or Center]] {{langnote|non-US|[[Midpoint or Center Tool|Midpoint or Centre]]}} tool .}}
  
; Center[Conic]: Returns the center of a circle, ellipse, or hyperbola.
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;Center( <Quadric> )
:{{Example|1= <code>Center[x^2 + 4 y^2 + 2x - 8y + 1 = 0]</code> returns point ''A''=(-1, 1)}}
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:Creates the center of a quadric (e.g. sphere, cone, etc.).
{{Note|1= See also [[Image:Tool_Midpoint_or_Center.gif]] [[Midpoint or Center Tool|Midpoint or Center]] tool .}}
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:{{example| 1=<div><code><nowiki>Center(x^2 + (y-1)^2 + (z-2)^2 = 1)</nowiki></code> yields ''(0, 1, 2)''</div>}}

Latest revision as of 15:26, 4 October 2017


Center( <Conic> )
Returns the center of a circle, ellipse, or hyperbola.
Example: Center(x^2 + 4 y^2 + 2x - 8y + 1 = 0)
(Gb.png, Au.png: Centre(x^2 + 4 y^2 + 2x - 8y + 1 = 0))
returns point A = (-1, 1)
Note: See also Mode midpoint.svg Midpoint or Center (Gb.png, Au.png: Midpoint or Centre) tool .
Center( <Quadric> )
Creates the center of a quadric (e.g. sphere, cone, etc.).
Example:
Center(x^2 + (y-1)^2 + (z-2)^2 = 1) yields (0, 1, 2)
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