User`s guide

Measurements and Math Functions 6
InfiniiVision Oscilloscopes User’s Guide 225
To perform a math function upon an arithmetic operation
To perform a function (differentiate, integrate, FFT, or square root) on an arithmetic
operation (add, subtract, or multiply):
1 Press the Function softkey and select g(t): Internal.
2 Use the Operator, Source 1, and Source 2 softkeys to set up an arithmetic operation.
3 Press the Function softkey and select f(t): Displayed.
4 Use the Operator softkey to select a function (differential, integral, FFT, or square
root).
5 Press the Source 1 softkey and select g(t) as the source. Note that g(t) is only
available when you select a function in the previous step.
Math scale and offset
Any math function may be manually scaled by pressing the Scale or Offset softkeys and
adjusting the value.
1 In the Waveform Math Menu, press the Scale or Offset sofkeys to set your own scale
factors (units/division) or offset (units) for the selected math function. The Function
softkey must be set to f(t): Displayed in order to set scale and offset.
2 Press the Scale or Offset softkey, then turn the Entry knob to rescale or change the
offset value for your math function.
Math Operating Hints
If the analog channel or math function is clipped (not fully displayed on screen) the resulting
displayed math function will also be clipped.
Once the function is displayed, the analog channel(s) may be turned off for better viewing of the
math waveform.
The vertical scaling and offset of each math function can be adjusted for ease of viewing and
measurement considerations.
The math function waveform can be measured using [Cursors] and/or [Quick Meas].
Math Scale and Offset are Set Automatically
Any time the currently displayed math function definition is changed, the function is automatically
scaled for optimum vertical scale and offset. If you manually set scale and offset for a function,
select a new function, then select the original function, the original function will be automatically
rescaled.