E4990A Help  
412 
Preset Value
10 
Unit  % 
Resolution  10m 
Query Response 
{numeric}<newline><^END> 
Examples 
Dim Var as Double 
Var= 0.01 
Ana.WriteString ":CALC1:MARK:ZAP " & Str(Var), True 
Ana.WriteString ":CALC1:MARK:ZAP?", True 
Var=Ana.ReadNumber 
Related Commands 
:CALC:MARK:SET 
Equivalent Softkey 
Marker Function > Zooming Aperture 
COM Command Syntax (Internal Control Only) 
SCPI.CALCULATE(Ch).SELECTED.MARKER.ZAPERTURE 
:CALC<Ch>:MATH:FUNC 
Type 
Command/Query 
Syntax 
:CALCulate<Ch>[:SELected]:MATH:FUNCtion 
{NORMal|DIVide|MULTiply|SUBTract|ADD} 
 
:CALCulate<Ch>[:SELected]:MATH:FUNCtion? 
Description 
This command selects the math operation type. Causes error when 
memory trace is not valid, except NORM. When NOP is changed, operation 
type is set to NORM. 
Variable 
Parameter  Selection Option 
Description  Math operation type 
Data Type  Character string type (String)