Difference between revisions of "LinearEccentricity Command"

From GeoGebra Manual
Jump to: navigation, search
m (more compact description)
(command syntax: changed [ ] into ( ))
 
Line 1: Line 1:
 
<noinclude>{{Manual Page|version=5.0}}</noinclude>{{command|conic}}
 
<noinclude>{{Manual Page|version=5.0}}</noinclude>{{command|conic}}
; LinearEccentricity[ <Conic> ]: Calculates the linear eccentricity of the conic section.
+
; LinearEccentricity( <Conic> ): Calculates the linear eccentricity of the conic section.
 
:For ellipses or hyperbolas the command gives the distance between the conic's center and one of its foci, for circles it gives 0, and for parabolas gives the distance between its focus and the vertex.
 
:For ellipses or hyperbolas the command gives the distance between the conic's center and one of its foci, for circles it gives 0, and for parabolas gives the distance between its focus and the vertex.
: {{Example|1=<code>LinearEccentricity[4x^2 - y^2 + 16x + 20 = 0]</code> returns 2.24}}
+
: {{Example|1=<code>LinearEccentricity(4x^2 - y^2 + 16x + 20 = 0)</code> returns 2.24}}

Latest revision as of 15:35, 4 October 2017


LinearEccentricity( <Conic> )
Calculates the linear eccentricity of the conic section.
For ellipses or hyperbolas the command gives the distance between the conic's center and one of its foci, for circles it gives 0, and for parabolas gives the distance between its focus and the vertex.
Example: LinearEccentricity(4x^2 - y^2 + 16x + 20 = 0) returns 2.24
© 2024 International GeoGebra Institute