Section 8: TSP command reference Model 2461 Interactive SourceMeter® Instrument Reference Manual8-120 2461-901-01 A/November 2015smu.digitize.math.formatThis attribute specifies which math operation is performed on measurements when math operations are enabled.Type TSP-Link accessible Affected by Where saved Default valueAttribute (RW) Yes Restore configurationInstrument resetPower cycleMeasure configuration listConfiguration scriptMeasure configuration listsmu.MATH_PERCENTUsageoperation = smu.digitize.math.formatsmu.digitize.math.format = operationoperation Math operation to be performed on measurements:• y = mx+b: smu.MATH_MXB• Percent: smu.MATH_PERCENT• Reciprocal: smu.MATH_RECIPROCALDetailsThis 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 displayedvalue is 1/X, where X is the measurement value (if relative offset is being used, this is the measuredvalue with relative offset applied).Math calculations are applied to the input signal after relative offset and before limit tests.Examplesmu.digitize.func = smu.FUNC_DIGITIZE_VOLTAGEsmu.digitize.math.format = smu.MATH_RECIPROCALsmu.digitize.math.enable = smu.ONEnables the reciprocal math operation ondigitize voltage measurements.Also seeCalculations that you can apply to measurements (on page 3-82)smu.digitize.math.enable (on page 8-119)
