Agilent 4155B/4156B User’s Guide Vol.2, Edition 5 6-13
Screen Organization
CHANNELS Screen Group
UNIT (optional)
UNIT defines the unit of the user function. This unit is used on the graph and list
result screens.
Restriction: UNIT must be 6 or less alphanumeric characters.
To delete a user function, you can select DELETE ROW softkey to delete the
NAME, UNIT, and DEFINITION entries.
DEFINITION
You enter an expression that defines the user function. The expression can consist of
numerical operators, constants, variables, built-in functions, and other user-defined
functions.
By selecting secondary softkeys, you can enter VNAMEs or INAMEs that are set on
the CHANNELS: CHANNEL DEFINITION screen.
For syntax, see “Expression” in Chapter 7. For example, to define a user function for
mutual conductance gm of an FET, define gm on this screen as follows:
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