Numerical trigonometry: Triangles.
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Description: Mathematics trainer (exercise generator), concerning numerical trigonometry, or more precisely 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 calculations.
Free Pascal features: Showing/hiding/modifying controls, depending on actual situation. Drawing geometrical shapes, using canvas.