几何之美 app for iPhone and iPad

A simple, efficient and intelligent dynamic geometry software.

1.Draw freely(create following geometric objects by clicking the Point tool, the Line tool, or the Circle tool ):
1) free point( any point and can be freely movable on the plane);
2) the point on the line segment( can be moved on the line segment and its extension line);
3) the point on the circle( can be moved on the circle);
4) the midpoint of line segment;
5) foot of a perpendicular ( foot of a perpendicular from a point to a line);
6) intersection point of two straight lines;
7) intersection point of two circles;
8) intersection point of a straight line and a circle;
9) line segment connecting two points;
10) a circle with one point as the its center and the other is over it;
11) tangent line of the circle;

2. Draw objects by selected objects:
1) the midpoint of a segment;
2) foot of a perpendicular( vertical);
3) center of a circle;
4) the intersection point of two straight lines, two circles and a straight line and a circle;
5) line segment;
6) circumscribed circle of triangle;
7) inscribed circle of triangle;
8) tangent line of circle;
9) polygon;
10) parallel lines;
11) arc;

3.Select and move—select and move the geometric objects on the screen.

4.Modify the line width and color of the selected objects.

5.Show/Hide the object.

6.Save the graphics to album.