Importation of boundary conditions and reduction of system
[K, P, cDOF, cDOFasc] = bc(M, K0)
Data importation matrix (structured) //REV 1.1.3
Complete stiffness matrix of the structure [DOFn*nn x DOFn*nn]
OUTPUT ARGUMENTS
Active stiffness matrix of the structure (reduced to active DOF) [DOFn*nn-cDOF x DOFn*nn-cDOF]
Nodal external loads vector (reduced to active DOF) [DOFn*nn-cDOF x 1]
Constrained degrees of freedom vector (descending order) [cDOF x 1]
Constrained degrees of freedom vector (ascending order) [cDOF x 1]