诸如三角函数这样的普通数学函数符合标准，并且你可以添加自定义的函数。

Common mathematical functions such as trigonometric functions are standard, and you can add custom functions.

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诸如三角函数这样的普通数学函数符合标准，并且你可以添加自定义的函数。

Common mathematical functions such as trigonometric functions are standard, and you can add custom functions.

youdao