Prompt
Generate a realistic image of a male mathematician from the early 20th century, sitting at a desk with papers and mathematical instruments, wearing formal attire. He has a distinguished look with grey hair and glasses. In the background, there are bookshelves with mathematical texts and a blackboard with geometric equations. The image should resemble a portrait of a renowned mathematician from that era. The style should be formal and academic, reflecting the mathematician's profession and contributions to the field of geometry.
