HP Prime Graphing NW280AAABA manual Rotation, Similarity, Translation

rotation

Rotates a geometric object, about a given center point, through a given angle.

rotate(point, angle, object)

Example:

rotate(GA, angle(GB, GC, GD),GK) rotates the

geometric object labeled K, about point A, through an angle equal to ∡ CBD.

similarity

Dilates and rotates a geometric object about the same center point.

similarity(point, realk, angle, object) Example:

similarity(0, 3, angle(0,1,i),point(2,0))

dilates the point at (2,0) by a scale factor of 3 (a point at (6,0)), then rotates the result 90° counterclockwise to create a point at (0, 6).

translation

Translates a geometric object along a given vector. The vector is given as the difference of two points (head-tail).

translation(vector, object)

Examples:

translation(0-i, GA) translates object A down one unit.

translation(GB-GA, GC) translates object C along the vector AB.

180 Geometry