8: TSP command reference Model 2461 Interactive SourceMeter® Instrument
8-120 2461-901-01 A/November 2015
smu.digitize.math.format
This attribute specifies which math operation is performed on measurements when math operations are enabled.
Type TSP-Link accessible Affected by Where saved Default value
Attribute (RW) Yes
Restore configuration
Instrument reset
Power cycle
Measure configuration list
Configuration script
Measure configuration list
smu.MATH_PERCENT
Usage
operation = smu.digitize.math.format
smu.digitize.math.format = operation
Math operation to be performed on measurements:
• y = mx+b: smu.MATH_MXB
• Percent: smu.MATH_PERCENT
• Reciprocal:
Details
This specifies which math operation is performed on measurements for the selected digitize function.
You can choose one of the following math operations:
• y = mx+b: Manipulate normal display readings by adjusting the m and b factors.
• Percent: Displays measurements as the percentage of deviation from a specified reference constant.
• Reciprocal: The reciprocal math operation displays measurement values as reciprocals. The displayed
value is 1/X, where X is the measurement value (if relative offset is being used, this is the measured
value with relative offset applied).
Math calculations are applied to the input signal after relative offset and before limit tests.
Example
smu.digitize.func = smu.FUNC_DIGITIZE_VOLTAGE
smu.digitize.math.format = smu.MATH_RECIPROCAL
smu.digitize.math.enable = smu.ON
Enables the reciprocal math operation on
digitize voltage measurements.
Also see
Calculations that you can apply to measurements (on page 3-82)
smu.digitize.math.enable (on page 8-119)
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