RIGOL  Chapter 6 Operations and Measurements 
6-18  MSO4000/DS4000 User’s Guide 
(Expression will automatically switch to “OFF”). At this point, the current 
expression is displayed at the bottom of the screen. The oscilloscope will 
operate according to this expression and display the results.  
 
 
To Set the Variables 
 
You can specify the variable by setting the “Mantissa” and “Exponent” (use 10 as the 
base). For example, when the mantissa is set to 6.1074 and the exponent is set to 8, 
the variable is set to 6.1074×10
8
. 
 
Press Variable to open the variable setting menu. You can set the variables 
(Variable1 and Variable2) may be included in the operation expression using the 
method below.  
 
1.  Select the variable to be edited 
Press Variable to select “Variable1” and “Variable2”. 
 
Variable1 and Variable2 correspond to Variable1 and Variable2 in the operation 
expression respectively.  
 
2.  Edit the mantissa 
1)  Press Step and turn the multi-function knob   to select the step used 
when modifying the “Mantissa”. You can also press Step continuously to 
switch the current step. The steps available are ×1, ×0.1, ×0.01, ×0.001 
and ×0.0001. 
2)  Press Mantissa and turn the multi-function knob   to modify the 
mantissa at the step specified in Step. The range available is from -9.9999 
to 9.9999. 
 
3.  Edit the exponent 
Press Exponent and turn the multi-function knob   to select the desired 
exponent. It can be any integer from -9 to 9. 
 
 
 
 
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