Mathematica 9 is now available

Protected

Usage

Protected 是一个属性,防止和一个符号相关联的任何值被修改。


Notes

• 许多内嵌Mathematica函数有属性Protected
• 参见 Mathematica 全书: 2.5.3.
• 同时参见: Locked, ReadProtected, Editable.


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