Any reference on node numbering/NUME_DDL part?

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I was just trying to export the stiffness matrix and load vector after ASSEMBLAGE command.

I modelled a simple Euler-Bernauli beam (in 3D) with only one element.

So the resulting stiffness matrix should be 12 X 12 and load vector should be 12 X 1.

However, the stiffness matrix exported has the dimension 24 X 24 and load vector has dimension 12 X 1.

Why the stiffness matrix is larger than expected? Am I missing something here?

Attaching a sample model with comm and med files.

Please have a look and let me know.

Moreover, I would also like to know the node numbering associated with matrix elements. I guess it should be in NUME_DDL, but couldnt get any document explaining all the methods. dir() on the module does not list all the methods/attributes available. Is it documented?

With regards,

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