FractalXYZ

FractalXYZ takes octaves (an integer), x (a float), y (a float) and z (a float), and answers a float.

FractalXYZ(octaves integer, x float, y float, z float) → float

DO  Print(FractalXYZ(1, 100.0, 120.0, 100.0))  Sync()LOOP

FractalXYZ is called and its answer is printed every frame. The DO … LOOP is not decoration: a classic BASIC program ends the moment it runs out of lines, and Sync() is what draws the frame.