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HoldFirst

Usage

• HoldFirst 是一个指定一个函数的第一个自变量保持不求值形式的属性。


Notes

• 参见 Mathematica 全书: 节 2.5.3 and 节 2.5.5.
Further Examples

This sets the function p to have the attribute that its first argument is held.

In[1]:=  

In[2]:=  

Out[2]=



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