Locus Tool

mode_locus_32 Locus

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 (also see command Locus).

Note: Point A has to be a point on an object (e. g. line, segment, 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 mode_point_16 New Point; see command Point).

·        Create point B = (x(A), f'(x(A))) that depends on point A.

·        Select tool mode_locus_16 Locus 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.


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