How to compose a formula in analysis methods?

To compose a formula you use the letter R.

For multiple measurements use R1, R2, R3.

The formula may contain only the letter R (R1, R2, R3), the digits 0 to 9 or the characters + - * / ( ).

On this basis, you create a formula. Only enter the formula e.g. R1*(R2-1)

An example:

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