Numerical trigonometry: Triangles (Trigonometry1).
Description: Mathematics trainer (exercise generator), dealing with numerical trigonometry, or more precisely with triangles. 5 types of exercises are considered:
- The Pythagorean theorem
- Similar right triangles
- Trigonometric ratios
- Oblique triangles
- The law of sines
Possible extensions: Exercises, mixing the different types of calculatons.
Free Pascal features: Showing/hiding/modifying controls, depending on actual situation. Drawing geometrical shapes, using canvas.