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The oscilloscope supports two vertical expansion modes: GND (default) and Center.

• GND: When the vertical scale is changed, the math operation waveform will

expand or compress about the ground level of the signal.

• Center: When the vertical scale is changed, the math operation waveform will

expand or compress about the center of the display.

Auto Set

Click or tap AutoSetting to adjust the vertical scale and the offset of the operation

results to the optimal value according to the current configuration for you to better

observe.

Label

It is used to set the label for the math operation results. For setting methods, refer to

descriptions in

To Turn the Channel Label Display On/Off

Grid

For setting methods, refer to the descriptions in

To Set the Screen Grid

9.2 Function Operation

In the Math menu, click or tap the Operator drop-down button to select the desired

function operation. The available function operation types of this oscilloscope include

Intg, Diff, Sqrt, Lg (Base 10 Exponential), Ln, Exp, Abs, and AX+B.

• Intg: calculates the integral of the selected source. For example, you can use

integral to measure the area under a waveform or the pulse energy.

• Diff: calculates the discrete time derivative of the selected source. For example,

you can use differentiate to measure the instantaneous slope of a waveform.

• Sqrt: calculates the square roots of the selected source point by point and

displays the results.

• Lg (Base 10 Exponential): calculates the base 10 exponential of the selected

source point by point and displays the results.

• Ln: calculates the natural logarithm (Ln) of the selected source point by point

and displays the results.

• Exp: calculates the exponential of the selected source point by point and

displays the results.

• Abs: calculates the absolute value of the selected source and displays the results.

• AX+B: applies a linear function to the selected source, and displays the results.

Math Operation

HDO1000 User Guide

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Rigol HDO1000 Series User Manual

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