Almost periodic functions serve as a powerful conceptual framework in analysing differential equations whose coefficients or forcing terms exhibit recurrent behaviour over time.

Ching Chou, Weakly Almost Periodic Functions and Almost Convergent Functions on a Group, Transactions of the American Mathematical Society, Vol. 206 (May, 1975), pp. 175-200 ...

In support of efforts to foreground functions as central objects of study in algebra, this study provides evidence of how secondary students use trigonometric functions in contextual tasks. The author ...