# struct.node.force.unbal.local

Syntax

m := struct.node.force.unbal.local(sn<,i>)

Get the unbalanced force of structure node expressed in a local system.

Returns: m - matrix of unbalanced force with all degrees-of-freedom, if the argument i is not assigned; or, unbalanced force at the i th degree-of-freedom, if the argument i is assigned. sn - pointer to the structure node i - degree-of-freedom, i ∈ {1, 2, … , 6}. The default is 1.