Hello,

I require some help in understanding whats going on here. THanks.

I dont understand what is the use of U_{n-1 ? what is meant by (n-1) please explain. }thanks.

The standard form of linear recurrence relation in vector/matrix form is Un=AU_{n-1, }where A is kxk matrix.

U_{n}=(x_{n};y_{n};z_{n)}

_{and hence obtain a paticular solution }

_{Un=AUn-1}