Difference between revisions of "Locus Tool"
From GeoGebra Manual
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: 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). | ||
Revision as of 22:16, 9 March 2013
- 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 – 1into the Input Bar and press the Enter-key. - Place a new point A on the x-axis (see
New Point tool; see Point command). - Create point
B = (x(A), f'(x(A)))that depends on point A. - Select tool
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.
- Type
 Warning: | Locus is undefined, if the dependent point depends on Point Command with two parameters or PathParameter Command. |
