对角矩阵(平动自由度)

Diagonalmatrix (Translationsfreiheitsgrade)

M = diag (M_{1, X}, M_{1, Y}, M_{1, Z}, M_{2, X}, . . ., M_{n, j})

n	FE-Knotennummer (1, 2, ...)
j	X, Y und Z Richtungen

;