周期函数
periodic function A function for which there exists a non-zero constant $T$ such that $f(x+T) = f(x)$ for all $x$ in its domain.
CSCA 数学 考试术语
periodic function A function for which there exists a non-zero constant $T$ such that $f(x+T) = f(x)$ for all $x$ in its domain.
CSCA 数学 考试术语