# Difference between revisions of "ConjugateDiameter Command"

From GeoGebra Manual

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<noinclude>{{Manual Page|version=4.2}}</noinclude> | <noinclude>{{Manual Page|version=4.2}}</noinclude> | ||

{{command|conic}} | {{command|conic}} | ||

− | ;ConjugateDiameter[ <Line>, <Conic> ]:Returns the | + | ;ConjugateDiameter[ <Line>, <Conic> ]:Returns the [[w:Conjugate diameters|conjugate diameter]] of the diameter that is parallel to the given line (relative to the conic section). |

:{{Example|1=<code>ConjugateDiameter[-4x + 5y = -2, x^2 + 4 y^2 + 2x - 8y + 1 = 0]</code> yields line 5''x'' + 16''y'' = 11}} | :{{Example|1=<code>ConjugateDiameter[-4x + 5y = -2, x^2 + 4 y^2 + 2x - 8y + 1 = 0]</code> yields line 5''x'' + 16''y'' = 11}} | ||

− | + | ; ConjugateDiameter[ <Vector>, <Conic> ]:Returns the [[w:Conjugate diameters|conjugate diameter]] of the diameter that is parallel to the given vector (relative to the conic section). | |

− | ; ConjugateDiameter[ <Vector>, <Conic> ]:Returns the conjugate diameter of the diameter that is parallel to the vector (relative to the conic section). | ||

:{{Example|1=Let ''u'' = (4,1) be a vector. Then <code>ConjugateDiameter[u, x^2 + 4 y^2 + 2x - 8y + 1 = 0]</code> yields line ''x'' + ''y'' = 0}} | :{{Example|1=Let ''u'' = (4,1) be a vector. Then <code>ConjugateDiameter[u, x^2 + 4 y^2 + 2x - 8y + 1 = 0]</code> yields line ''x'' + ''y'' = 0}} |

## Revision as of 08:58, 29 May 2015

- ConjugateDiameter[ <Line>, <Conic> ]
- Returns the conjugate diameter of the diameter that is parallel to the given line (relative to the conic section).
**Example:**`ConjugateDiameter[-4x + 5y = -2, x^2 + 4 y^2 + 2x - 8y + 1 = 0]`

yields line 5*x*+ 16*y*= 11

- ConjugateDiameter[ <Vector>, <Conic> ]
- Returns the conjugate diameter of the diameter that is parallel to the given vector (relative to the conic section).
**Example:**Let*u*= (4,1) be a vector. Then`ConjugateDiameter[u, x^2 + 4 y^2 + 2x - 8y + 1 = 0]`

yields line*x*+*y*= 0