The most important feature in version 3 is support for elementary school math notation.

MathML 3最重要的功能是支持小学数学符号。

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You can use dc, a reverse-polish notation calculator, or bc, an entire scripting language for math.

您可以使用 dc（这是一种逆波兰式计算器），或者 bc（这是一种用于数学运算的完整的脚本编程语言）。

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Once you're comfortable with the many branches of math, and the many different forms of notation, you're well on your way to knowing a lot of useful math.

一旦你习惯了数学的许多分支，和许多不同的符号的格式，你就走在了解许多数学知识的路上了。

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I don't want anybody to quit this class because they're worried about math or math notation.

我不希望你们因为对数学,或是数学符号的恐惧而放弃这门课

耶鲁公开课 - 博弈论课程节选

At first I thought it interesting mainly because of the technical challenges, as the relationship between print and braille is surprisingly complex and different for every language and type of notation under the sun, from Arabic to Zulu and from math to music.

WHITEHOUSE: Providing Literacy for Informed Citizenry through Braille | The White House