HP E4418B Programming Manual page 222

Query
CALCulate[1|2]:MATH[:EXPRession]?
The query returns the current math measurement setting on the specified
window.
Query Example
Error Messages
For the HP E4419B, if CALCulate1:MATH is set to anything other than
SENS1 while SENSe:SPEed is set to 200, the error -221, "Settings Conflict"
occurs.
For the HP E4419B, if CALCulate2:MATH is set to anything other than
SENS2 while SENSe:SPEed is set to 200, the error -221, "Settings Conflict"
occurs.
HP E4418B/E4419B Programming Guide
CALC1:MATH?
CALCulate[1|2]:MATH[:EXPRession] <string>
This command queries the current
setting of the math expression on
the upper window.
CALCulate Subsystem
3-23