How to do a calculation with every repeating field

[Claus Faber]

I was wondering, what to do to make the calculation engine do the same calculation with every repeating field. The case is:

I have field A, which is of type number and has 6 repetitions.

I have field B, which is of type calculation and has 6 repetitions as well. Now I want the algorithm take every repetition of field A to calculate and put it into the same repetition of field B.

It may be very simple, but still, I don't manage... Thanks a lot!

[comment]

1 hour ago, Claus Faber said:

Now I want the algorithm take every repetition of field A to calculate and put it into the same repetition of field B.

That's how a repeating calculation field works by default. If you define your calculation field as =

FieldA * 3

and populate the (repeating) FieldA with values of 1, 2, 3, 4 and 5, the calculation field will show results of 3, 6, 9, 12 and 15.