GSP Script Tools
1. Centroid (G)
2. Orthocenter (H)
3. Circumcenter (C)
4. Circumcircle
5. Incenter (I)
6. Incircle
7. medial triangle
8. orthocenter/mid-segment triangle
9. orthic (altitude) triangle
10. pedal triangle
11. center of 9 point circle
12. 9 point circle
13. Trisecting a line segment (for my source for this one see here)