Difference between revisions of "Center Command"
From GeoGebra Manual
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{{Note|1= See also [[Image:Tool_Midpoint_or_Center.gif]] [[Midpoint or Center Tool|Midpoint or Center]] {{langnote|non-US|[[Midpoint or Center Tool|Midpoint or Centre]]}} tool .}} | {{Note|1= See also [[Image:Tool_Midpoint_or_Center.gif]] [[Midpoint or Center Tool|Midpoint or Center]] {{langnote|non-US|[[Midpoint or Center Tool|Midpoint or Centre]]}} tool .}} | ||
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;Center[ <Quadric> ] | ;Center[ <Quadric> ] | ||
:Creates the center of a quadric (e.g. sphere, cone, etc.). | :Creates the center of a quadric (e.g. sphere, cone, etc.). | ||
− | :{{example| 1=<div><code><nowiki>Center[x^2 + y^2 + z^2 = 1]</nowiki></code> yields ''(0, | + | :{{example| 1=<div><code><nowiki>Center[x^2 + (y-1)^2 + (z-2)^2 = 1]</nowiki></code> yields ''(0, 1, 2)''</div>}} |
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Revision as of 12:43, 17 April 2015
This command differs among variants of English:
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- Center[ <Conic> ]
- Returns the center of a circle, ellipse, or hyperbola.
- Example:
Center[x^2 + 4 y^2 + 2x - 8y + 1 = 0]
(, :Centre[x^2 + 4 y^2 + 2x - 8y + 1 = 0]
)
returns point A = (-1, 1)
Note: See also Midpoint or Center (, : 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)