RIGOL  Chapter 2 Command System 
2-106    MSO1000Z/DS1000Z Programming Guide 
:MATH:OPTion:FX:SOURce2 
:MATH:OPTion:FX:SOURce2 <src> 
:MATH:OPTion:FX:SOURce2? 
Set or query source B of the inner layer operation of compound operation. 
{CHANnel1|CHANnel2|CHANnel3|CHANnel4} 
The query returns CHAN1, CHAN2, CHAN3, or CHAN4. 
:MATH:OPTion:FX:SOURce2 CHANnel1 /*Set source B of the inner layer operation of 
compound operation to CH1*/ 
:MATH:OPTion:FX:SOURce2?                        /*The query returns CHAN1*/ 
 
 
:MATH:OPTion:FX:OPERator 
:MATH:OPTion:FX:OPERator <op> 
:MATH:OPTion:FX:OPERator? 
Set or query the operator of the inner layer operation of compound operation. 
{ADD|SUBTract|MULTiply|DIVision} 
The query returns ADD, SUBT, MULT, or DIV. 
:MATH:OPTion:FX:OPERator ADD /*Set the operator of the inner layer operation of 
compound operation to addition*/ 
:MATH:OPTion:FX:OPERator?              /*The query returns ADD*/