Difference between revisions of "DynamicCoordinates Command"
From GeoGebra Manual
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;DynamicCoordinates[ Point A, Number X, Number Y ] | ;DynamicCoordinates[ Point A, Number X, Number Y ] | ||
:creates a point with coords (X, Y). This point is dependent, but can be moved. Whenever you try to move the new point to coordinates (x,y), point ''A'' is moved there and coordinates for the new point are calculated. Works best if point ''A'' is not [[Object Properties#Visibility|visible]]. At least one of ''X'' and ''Y'' should depend on ''A''. | :creates a point with coords (X, Y). This point is dependent, but can be moved. Whenever you try to move the new point to coordinates (x,y), point ''A'' is moved there and coordinates for the new point are calculated. Works best if point ''A'' is not [[Object Properties#Visibility|visible]]. At least one of ''X'' and ''Y'' should depend on ''A''. | ||
Revision as of 14:44, 28 February 2011
- DynamicCoordinates[ Point A, Number X, Number Y ]
- creates a point with coords (X, Y). This point is dependent, but can be moved. Whenever you try to move the new point to coordinates (x,y), point A is moved there and coordinates for the new point are calculated. Works best if point A is not visible. At least one of X and Y should depend on A.
Example:
B=DynamicCoordinates[A,round(x(A)),round(y(A))]. You try to move B to (1.3,2.1) using the
Move Tool. Point A becomes (1.3,2.1) and B appears at (1,2).B=DynamicCoordinates[A,x(A),min(y(A),sin(x(A)))]create a point under under sin(x). PointIn[y<sin(x)] is easier solution in this case.
