Need explanation in Demo: Static deformations of Timoshenko beams

Questions
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1

Can you tell me what’s in here
Static Deformations of Timoshenko Beams
means:

f | 0 | 1 | x^2 | sin(x)

m | 0 | 1 | x^2 | sin(x)

2

It is called a SetterBar, where you can click to choose one of the given items.

3

That’s understandable.
I was asking what these parameters mean within the model.