Keithley 4200A-SCS

Section
6: Clarius Model 4200A-SCS Parameter Analyzer
Reference Manual
6-264 4200A-901-01 Rev. C / February 2017
TANFIT Formulator function
Finds a linear equation of the form Y = a + bX from two columns (vectors), VX and VY.
Usage
TANFIT(VX, VY, POS)
VX
The name of any column (vector) listed under Columns
VY
The name of any column (vector) listed under Columns
POS
The row number (index) where the tangent is to be found
Details
Finds a linear equation of the form Y = a + bX from two columns (vectors), VX and VY. This
equation corresponds to a tangent of the curve that is created by plotting the values in VY against the
values in VX. The value at which the tangent is found is specified by the argument POS.
Using the linear equation, returns a new column (vector) containing Y values calculated from all X
values in column VX.
If a VX or VY value at POS is an invalid number (that is, the value is #REF), the function will not return
a valid result.
Example
VTFIT = TANFIT(GATEV, DRAINI, MAXPOS(GM))
Also see
TANFITSLP (on page 6-265)
TANFITXINT (on page 6-266)
TANFITYINT (on page 6-267)