周期函数
periodic function A function that repeats its values at regular intervals, i.e., there exists a non-zero constant $T$ such that $f(x+T) = f(x)$ for all $x$ in i
CSCA 数学 考试术语
periodic function A function that repeats its values at regular intervals, i.e., there exists a non-zero constant $T$ such that $f(x+T) = f(x)$ for all $x$ in i
CSCA 数学 考试术语