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IM DLM4038-02EN
6.8  Performing User-Defined Computations 
(Option)
This section explains the following settings (which are used when performing user-defined 
computations).
• Operators
• Expressions
•  Computation conditions
•  Labels and units
•  Auto ranging
• Scaling
► “User-Defined Computation (User Define, Option)” in the Features Guide
MATH/REF Menu
Press MATH/REF to display the following menu.
 
Set the expressions.
Set the operator to User Define.
Set Mode to Math.
Set the computation conditions.
Specify the computed waveform 
from among Math1 to Math4 that 
you want to configure.
Set the label and unit.
Set auto ranging.
Configure the scaling.
Setting Expressions (Expression)
Press the Expression soft key to display the following screen.
Example: Computed waveform Math4
Moves the cursor to  
the right 
Moves the cursor to  
the left 
Inserts a right 
parenthesis 
You can include the automated measurement values  
of waveform parameters to expressions. 
Define an expression by combining computation source  
waveforms and operators. 
Deletes the character 
at the cursor position 
Enters the expression 
Deletes the previous 
character 
Deletes all the 
characters you have 
entered
• Computed waveform Math3
• Computed waveform Math2
• M1 to M3 are not displayed for computed waveform Math1.