By using the symbolic mathematics tools, control system tools and optimisation design tools in MATLAB software, it make the design ease and last. The efficiency of programming is enhanced.

该方法利用了MAT - LAB软件中的符号数学工具箱、控制系统工具箱和优化设计工具箱，使设计简单、快捷，提高了编程效率。

youdao

Mathematical logic, also known as symbolic logic, was developed when people finally realized that the tools of mathematics can be used to study the structure of logic itself.

数理逻辑，也称为符号逻辑，是当人们终于认识到，数学的工具可以用来研究的结构，逻辑本身。

youdao

Explains how to add symbolic information that can be used by debuggers and other tools.

说明如何加入可由侦错工具和其他工具使用的符号资讯。

youdao

Earlier this year, another team published evidence of the possible symbolic use of eagle claws by Neanderthals, although they might also have been using the items as tools.

BBC: Neanderthals used feathers as 'personal ornaments'

Like the Neanderthals, the newcomers had been busy, too, developing advanced tools and weapons, better navigational skills, trade, complex language, art and other forms of symbolic thinking.

WSJ: Neanderthals: Why Us and Not Them?