Math Waveforms 5
Keysight InfiniiVision HD3-Series Oscilloscopes User's Guide 83
See Also • "Exponential" on page 84
Common Logarithm
The Common Logarithm (log) function performs a transform of the input source.
Where the transform is undefined for a particular input, holes (zero values) appear
in the function output.
See Also • "Natural Logarithm" on page 86
Differentiate
d/dt (differentiate) calculates the discrete time derivative of the selected source.
You can use differentiate to measure the instantaneous slope of a waveform. For
example, the slew rate of an operational amplifier may be measured using the
differentiate function.
Because differentiation is very sensitive to noise, it is helpful to set acquisition
mode to Averaging (see "Selecting the Acquisition Mode" on page 166).
d/dt plots the derivative of the selected source using the "average slope estimate
at 4 points" formula. The equation is:
Figure 10 Example of Base 10 Exponential
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