Greg Fee

Greg Fee appears to be a mathematics-focused author best known for Catalan's Constant [Ramanujan's Formula], a work listed on major book platforms including Goodreads and Project Gutenberg.

Publicly available catalog pages suggest a small body of work centered on mathematical ideas rather than a widely documented mainstream author profile. I couldn't confirm detailed biographical information such as education, career background, or personal history from reliable sources, so it's best to view Greg Fee as an obscure but intriguing writer whose published work seems aimed at readers interested in number theory and mathematical curiosities.