Zeiss LSM 880, Operating Manual

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CHAPTER 1 - SYSTEM OPERATION
LSM 880 Left Tool Area and Hardware Control Tools ZEISS
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5.3.4.6 Formula
The Formula panel allows you to define your own
fit equation.
•
Press the
Formula
tab to open the Formula
panel (Fig. 290). Click any other tab to leave the
panel.
In the
Formula
panel you will have a keyboard in
the editor area which you can use to edit your
formula. You can also type in directly in the
Formula display box.
All variables that are defined at the beginning are
taken as fixed variables, all others as fit
parameters. If variables are defined you have to
finish with the return key. Each defined variable
must have an assigned number. This number will
substitute for the variable in the equation.
A formula has always to be started with G as the
dependent variable in the form of G(x)=, x any
arabic letter. The formula is continuously parsed
and any expected operation indicated in the
description box at the bottom. The independent
variable x is considered to have the SI unit [s] and
the same holds true for any dependent parameter
to it.
After finishing the formula by clicking into the
display box in a line other than the end of the
formula any remaining syntax errors will be
displayed. If there are no syntax errors parameters
and operations will be indicated.
Fig. 290 Model panel, Formula tab