## Circle geometry.

Download Circles desktop application (Windows 64bit) | Download Circles source code (Lazarus/Free Pascal) |

Description: Analytical geometry application, concerning circles. The application allows four types of calculations:

- Determination of the tangent at a given point.
- Intersection of the circle with a given line.
- Intersection of the circle with another circle.
- Determination of the circle's outer and inner squares.

Possible extensions: Outer and inner squares with sides, that aren't parallel to Ox and Oy. Determination of other outer and inner
shapes, such as, for example, triangles.

Free Pascal features: Re-arranging form controls during runtime. Showing/hiding controls as needed. Drawing mathematical objects,
using bitmap canvas. Scaling canvas drawings. Usage of trackbars.

Screenshots: