Mathematical Formula OCR Using Physics-Informed Neural Networks (PINNs). International Research Journal on Advanced Engineering Hub (IRJAEH), [S. l.], v. 4, n. 03, p. 1213–1224, 2026. DOI: 10.47392/IRJAEH.2026.0170. Disponível em: https://irjaeh.com/index.php/journal/article/view/1416.. Acesso em: 30 apr. 2026.