HET-610: My Pictures and Figures
by Luis Argüelles

Rotations in 3D space
Before applying any rotation:


After applying ROTX-30, then ROTY-25 and finally ROTZ-70:


After applying ROTY-25, then ROTZ-70 and finally ROTX-30


Finally, the complete set of rotations in the same image:
As can be seen, rotations in 3D space are not conmutative operations.