What's in DrGenius? (1)

Construction of interactive geometry figure with tools as:

point (free, middle, on a line, intersection);
line (straight line, ray, segment, vector, circle, arc circle, polygon, locus);
planar transformations (rotation, symmetries, scale, translation plus parallel and perpendicular line construction);
numeric measurements (length, distance, coordinate, equation, free value, angle);
macro-construction;
DGS (DrGenius Guile Script).

LET'S SEE A FEW EXAMPLES!