Array; At Formulator Function; Diff Formulator Function - Keithley 4200A-SCS Reference Manual

Section 6: Clarius

Array

The following Formulator functions are used to work with arrays.

AT Formulator function

Extracts and returns a single value from a column (vector).
Usage
AT(Value, POS)
Value
POS
Example
IDSAT = AT(DRAINI, 36)
Also see
None

DIFF Formulator function

For all of the values in two selected columns (vectors), returns a third column (vector) that contains the difference
coefficients.
Usage
DIFF(V1, V2)
V1
V2
Details
Each coefficient is calculated as follows:
V1/V2
Where:
•
V1 = The difference between a pair of adjacent values in the first column.
•
V2 = The difference between the corresponding values in the second column.
That is, for columns V1 and V2, DIFF returns the following:
(V1 - V1
2 1
You can use this function to do calculations in real time (while a test is executing).
Example
GM = DIFF(DRAINI, GATEV)
Also see
None
6-238
The name of any column (vector) in the Data Series list or any operand
The row number of column Value where the single value is located
The name of any column (vector) listed under Columns
The name of any column (vector) listed under Columns
)/(V2 - V2 ), (V1 - V1
2 1 3
Model 4200A-SCS Parameter Analyzer Reference Manual
), and so on.
)/(V2 - V2
2 3 2
4200A-901-01 Rev. C / February 2017