In many cases, ship officers must resort to the use of some fundamental mathematical tables.

在许多情况下船员必须使用基本数学演算的表。

With that single macro, you can take away a lot of work for any program that has to generate mathematical tables indexed by integer.

使用这一个宏，就可以节省很多编程的工作，它可以生成一个使用整数进行索引的数学表。

Babbage, Charles (1792~1871) : British mathematician and inventor, educated at Cambridge University, he devoted himself from about 1812 to devising machines capable of calculating mathematical tables.

巴贝奇（1792～1871）：英国数学家和发明家；曾在剑桥大学就读；约自1812年开始致力于研究能够计算数学表格的机械装置。

Examples include program listings, immense tables of data, lengthy mathematical proofs or derivations, etc.

可以列举一些包括课程表，大量的数据表，冗长的数据证据或文字等的例子。

Rough sets theory is a new mathematical tool to deal with vagueness and uncertain, which can remove redundant information and seek for reduced decision tables effectively.

粗糙集理论是一种新型的处理模糊和不确定知识的数学工具，它能在保持信息系统分类能力不变的前提下，有效地进行知识约简；