User`s guide
8-8 Agilent 4155C/4156C User’s Guide Vol.2, Edition 6
Support Functions
User Function and User Variable
Syntax of Data Variable Name
A data variable name must start with alphabet character and can consist of
maximum six alphanumeric characters. Refer to Figure 8-1.
Figure 8-1 Syntax of Data Variable Name
The name must be unique. Name is case sensitive. For example, Gm is different
from GM.
NOTE Using Built-in Function Name as Data Variable Name
You can give a data variable name the same name as a built-in function. But if you
use the name in an expression, the system considers the name to be a data variable
name, not a built-in function name. So, in this case, you cannot use the built-in
function in an expression. For the built-in function, see Chapter 9.