Difference between revisions of "Locus Tool"

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<noinclude>{{Manual Page|version=5.0}}</noinclude>
 
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{{Tool|name={{PAGENAME}}|type=special line|icon=Tool_Locus.gif}}
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{{Tool|name={{PAGENAME}}|type=special line|icon=Tool_Locus.svg}}
 
: Select a point ''B'' that depends on another point ''A'' and whose locus should be drawn. Then, click on point ''A'' to create the locus of point ''B'' (see also [[Locus Command|Locus]] command).  
 
: Select a point ''B'' that depends on another point ''A'' and whose locus should be drawn. Then, click on point ''A'' to create the locus of point ''B'' (see also [[Locus Command|Locus]] command).  
 
: {{Note| Point ''A'' has to be a point on an object (e. g. line, segment/interval, circle).}}
 
: {{Note| Point ''A'' has to be a point on an object (e. g. line, segment/interval, circle).}}

Revision as of 07:54, 28 July 2015


Select a point B that depends on another point A and whose locus should be drawn. Then, click on point A to create the locus of point B (see also Locus command).
Note: Point A has to be a point on an object (e. g. line, segment/interval, circle).
Example:
  • Type f(x) = x^2 – 2 x – 1 into the Input Bar and press the Enter-key.
  • Place a new point A on the x-axis (see Tool New Point.gifPoint tool; see Point command).
  • Create point B = (x(A), f'(x(A))) that depends on point A.
  • Select tool Tool Locus.gif and successively click on point B and point A.
  • Drag point A along the x-axis to see point B moving along its locus line.
Warning Warning: Locus is undefined, if the dependent point depends on Point Command with two parameters or PathParameter Command.
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