The mathematical notation for this operation looks like this – it's called a kernel or filter.

这个操作的数学符号看起来像这样——它被称为内核或过滤器。

In the US, those extra numbers were largely used to encode additional symbols, like mathematical notation, graphical elements, and common accented characters.

在美国，这些额外的数字主要用于编码额外的符号，例如数学符号、图形元素和常见的重音字符。

Language, the argument went, must have evolved to help us think, in much the same way that mathematical notations allow us to make complex calculations.

他们认为，语言的进化一定是为了帮助我们思考，就像数学符号让我们能够进行复杂的计算一样。

A few centuries ago, the development of mathematical notation, and what amounts to the language of mathematics, gave a systematic way to express math and made possible algebra and calculus, and eventually all of modern mathematical science.

几个世纪前，数学符号以及相当于数学语言的发展，提供了一种系统的方式来表达数学，并使代数和微积分成为可能，并最终使所有现代数学科学成为可能。