Terms containing pencil-of-function

Subject	English	Russian
math.	many tables of values for special functions could be calculated at a time when pencil and paper were the only available орудия	единственно доступные инструменты
math.	many tables of values for special functions could be calculated at a time when pencil and paper were the only available tools	единственно доступные инструменты
math.	pencil of analytic functions	пучок аналитических функций
math.	pencil of regular functions	пучок регулярных функций