The term generative art has become associated with production of digital artwork using mathematics and associated software. It usually involves the use of mathematic equations, either directly or indirectly through a graphic interface.
There are many "buzz" words associated with generative art: fractals, harmonograph, spirograph, Lissajous figures, phyllotaxis, attractors, Lorenz System, L-system, and so the list goes on. Many of this terms refer to related mathematical models.
In computing terms 'Procedural' is the method of generating data using an alogorithm or mathematical equation. The art presented here is created ion such a manner. The primary software that I use is Open Processing 3. Once the image has been generated I may apply additional processing, such as colourisation, to enhance the aesthetic.