Difference between revisions of "Focus Command"
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| − | <noinclude>{{Manual Page | + | <noinclude>{{Manual Page|version=5.0}}</noinclude>{{command|conic}} |
| − | {{command|conic}} | + | ; Focus( <Conic> ): Yields (all) foci of the conic section. |
| − | ; Focus | + | :{{Example|1=<code>Focus(4x^2 - y^2 + 16x + 20 = 0)</code> returns the two foci of the given hyperbola: ''A''=(-2, -2.24) and ''B''=(-2, 2.24).}} |
| + | {{Note|1=See also the [[Directrix Command|Directrix]] command.}} | ||
Latest revision as of 16:32, 4 October 2017
- Focus( <Conic> )
- Yields (all) foci of the conic section.
- Example:
Focus(4x^2 - y^2 + 16x + 20 = 0)returns the two foci of the given hyperbola: A=(-2, -2.24) and B=(-2, 2.24).
Note: See also the Directrix command.
