Teledyne LeCroy LabMaster 9Zi-A - Manual (Page 195)

Getting Started Manual
922157-00 Rev A 187
Regardless of how you performed the previously described initial steps, at
this point access your corresponding Fx dialog if you want to change other
setup items as follows:

You can modify the source of your waveform used on a Math trace
using the source (Source 1) control.

Touch the Single function button if you want to perform just one
math function on the trace, or touch the Dual function button to
perform math on math (shown respectively, as follows).

Touch the Graph button, and then touch inside the Graph with
control to select a graph mode.

Use the web edit button to access the Processing Web and form
sequence highly detailed math functionality.