How to apply the math node to a set of columns

KNIME Analytics Platform
1

I would like to apply log to many columns in one go.
So instead of putting many math nodes, I think I can use the column loop node but I am not sure how to update the math node so it take the current column and save it for each iteration.
Any suggestions?

2

@zizoo, there is


and

to manipulate multiple columns at once.

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3

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