Tektronix KEITHLEY System SourceMeter 2636B Reference Manual page 162

Section 4: Sourcing and measuring Series 2600B System SourceMeter® Instrument Reference Manual
The number of points in a sweep is one greater than the number of steps in the sweep.
The following figure is an example of a five-point logarithmic sweep from 1 V to 10 V.
Figure 54: Logarithmic staircase sweep (1 V to 10 V, five steps)
In this example:
A = 0, V = 1, V = 10, N = 5
start end
Using the formula above, k = 1
Step size (b) for the sweep in the above figure is calculated as follows:
(log step size)
Therefore, b = 10 = 1.7783
4-70 2600BS-901-01 Rev. E / January 2019