If you meant the demonic villain , the father of Raven, here is a quick overview of his history and appearances: First Appearance : The New Teen Titans #2 (December 1980).
: He was born from evil energy expelled by pacifists in the dimension of Azrath. Temas Trigon
: For a more technical look at how trigonometry is taught using tools like GeoGebra, you can view this university study from the University of Copenhagen . 👹 Trigon (DC Comics Character) If you meant the demonic villain , the