Freya: An educational MATLAB GUI-based tool for generalized Fourier series. Research, Society and Development, [S. l.], v. 12, n. 2, p. e28712240312, 2023. DOI: 10.33448/rsd-v12i2.40312. Disponível em: https://rsdjournal.org/rsd/article/view/40312. Acesso em: 5 dec. 2025.