•只要参数需要，初等函数可以彼此嵌套。例如，考虑上述例子，你可以在‘And’函数里嵌套一个‘Not’函数。如下所示，内置函数内的函数智能感知可以通过使用‘@’调用。

思考下面的例子。其想要通过智能感知输入Not[41TI9008.CV.Remove]。完成此任务所需的过程是：

1. 输入@N
2. 选择‘Not(x)’
3. 删除 ‘x’ 并输入[
4. 输入41T并从下拉列表中选择41TI9008.CV.
5. 输入.
6. 从列表中选择Remove.
7. 输入]
   内置函数：分类和描述
   下表介绍了可用内置函数列表。
   •基本函数可以相互嵌套。
   •那些复杂函数（即不是初等函数）不能被嵌套。
   欲知更多细节，有兴趣的读者请参考PCTP用户指南中的计算一节。

原文：
• Elementary functions may be nested within each other as long as the required arguments are presented. For example, in the example considered above, you can nest a ‘Not’ function within an ‘And’ function. When inside built-in functions, IntelliSense for functions is invoked using an ‘@’ as is shown below.
Consider the following example. It is desired to enter Not[41TI9008.CV.Remove] using IntelliSense. The procedure required to accomplish this task is:

1. Type @N
2. Select ‘Not(x)’
3. Delete the ‘x’ and type [
4. Type 41T and select 41TI9008.CV from the drop down list.
5. Type .
6. Select Remove from the list.
7. Type ]
   Built-in Functions: Classification and Description
   The table below provides a list of available built-in functions.
   • Elementary functions may be nested within each other.
   • Functions that are complex i.e. not elementary may not be nested.
   For further details, we refer the interested reader to the section on Calculations in the PCTP-User’s Guide.

2016.4.28