Difference between revisions of "Relation Command"

From GeoGebra Manual
Jump to: navigation, search
m
(command syntax: changed [ ] into ( ))
 
(One intermediate revision by the same user not shown)
Line 1: Line 1:
 
<noinclude>{{Manual Page|version=5.0}}</noinclude>{{command|logical}}
 
<noinclude>{{Manual Page|version=5.0}}</noinclude>{{command|logical}}
; Relation[ <List> ]: Shows a message box that gives you information about the relation between two or more (up to 4) objects.
+
; Relation( <List> ): Shows a message box that gives you information about the relation between two or more (up to 4) objects.
; Relation[ <Object>, <Object> ]: Shows a message box that gives you information about the relation between two objects.
+
; Relation( <Object>, <Object> ): Shows a message box that gives you information about the relation between two objects.
  
This command allows you to find out whether
+
:This command allows you to find out whether
* two lines are perpendicular
+
:* two lines are perpendicular
* two lines are parallel
+
:* two lines are parallel
* two (or more) objects are equal
+
:* two (or more) objects are equal
* a point lies on a line or conic
+
:* a point lies on a line or conic
* a line is tangent or a passing line to a conic
+
:* a line is tangent or a passing line to a conic
* three points are collinear
+
:* three points are collinear
* three lines are concurrent (or parallel)
+
:* three lines are concurrent (or parallel)
* four points are concyclic (or collinear).
+
:* four points are concyclic (or collinear).
  
 
Some of these checks can also be performed symbolically. If GeoGebra supports symbolic check for a certain property, the "More" button appears. By clicking it, GeoGebra may provide more information whether the property is true in general (eventually under certain conditions).
 
Some of these checks can also be performed symbolically. If GeoGebra supports symbolic check for a certain property, the "More" button appears. By clicking it, GeoGebra may provide more information whether the property is true in general (eventually under certain conditions).
  
 
{{Note| See also [[Relation Tool|Relation]] tool. }}
 
{{Note| See also [[Relation Tool|Relation]] tool. }}

Latest revision as of 18:44, 30 September 2017


Relation( <List> )
Shows a message box that gives you information about the relation between two or more (up to 4) objects.
Relation( <Object>, <Object> )
Shows a message box that gives you information about the relation between two objects.
This command allows you to find out whether
  • two lines are perpendicular
  • two lines are parallel
  • two (or more) objects are equal
  • a point lies on a line or conic
  • a line is tangent or a passing line to a conic
  • three points are collinear
  • three lines are concurrent (or parallel)
  • four points are concyclic (or collinear).

Some of these checks can also be performed symbolically. If GeoGebra supports symbolic check for a certain property, the "More" button appears. By clicking it, GeoGebra may provide more information whether the property is true in general (eventually under certain conditions).

Note: See also Relation tool.
© 2024 International GeoGebra Institute