RIGOL DS1000B - Manual (Page 60)

RIGOL Command Systems
Programming Guide for DS1000B Series 2-48
MATH Commands
MATH Commands are used to display the result of adding, subtracting, multiplying
and FFT operation for the signals from CH1, CH2, CH3 and CH4. The results can be
measured by the grid and the cursor.
MATH Commands include:
 :MATH:DISPlay
We will give detailed introductions for each command in the following parts.