linguistic:translation, information:extraction, linguistic:paraphrasing
Mathematics

In mathematics the one-sided limit x → a means x approaches a from the right (i.e., right-sided limit), and x → a means x approaches a from the left (i.e., left-sided limit). For example, 1/ x → + ∞ {\displaystyle \infty } as x → 0 but 1/ x → − ∞ {\displaystyle \infty } as x → 0.