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。

Later, when seamen began to use the compass in the 12th century they could calculate longitude using complicated mathematical tables.

后来，当海员开始使用指南针的12世纪时，他们可以用复杂的数学计算经度的桌子。

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。