# Difference between revisions of "Conic Command"

From GeoGebra Manual

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:Returns a conic section <math>a\cdot x^2+d\cdot xy+b\cdot y^2+e\cdot x+f\cdot y=-c</math>. | :Returns a conic section <math>a\cdot x^2+d\cdot xy+b\cdot y^2+e\cdot x+f\cdot y=-c</math>. | ||

:{{example|1=<code><nowiki>Conic[2, 3, -1, 4, 2, -3]</nowiki></code> yields '' 2x² + 4x y + 3y² + 2x - 3y = 1 ''.}} | :{{example|1=<code><nowiki>Conic[2, 3, -1, 4, 2, -3]</nowiki></code> yields '' 2x² + 4x y + 3y² + 2x - 3y = 1 ''.}} | ||

− | {{Note| See also [[Image:Tool_Conic_5Points.gif]] [[Conic through | + | {{Note| See also [[Image:Tool_Conic_5Points.gif]] [[Conic through 5 Points Tool|Conic through 5 Points]] tool and [[Coefficients Command|Coefficients]] command.}} |

## Revision as of 00:27, 27 November 2013

- Conic[ <Point>, <Point>, <Point>, <Point>, <Point> ]
- Returns a conic section through the five given points.
**Example:**`Conic[(0, -4), (2, 4), (3,1), (-2,3), (-3,-1)]`

yields*151x² - 37x y + 72y² + 14x - 42y = 1320*.

**Note:**If four of the points lie on one line the conic section is not defined.

- Conic[ <Number a>, <Number b>, <Number c>, <Number d>, <Number e>, <Number f> ]
- Returns a conic section a\cdot x^2+d\cdot xy+b\cdot y^2+e\cdot x+f\cdot y=-c.
**Example:**`Conic[2, 3, -1, 4, 2, -3]`

yields*2x² + 4x y + 3y² + 2x - 3y = 1*.

**Note:**See also Conic through 5 Points tool and Coefficients command.