The snapshot in Figure 2 highlights a memory leak (String object is leaking), along with the leak's container type (Vector object), and root (TestThreeTierQueue object).

Parametric values on the contact lines of disc cutter blade and the side surface cogwheel, disc cutter blade and gear root surface are determined by using vector method.

The paper illustrates the conclusions about the multiple root of characteristic equation and characteristic vector which fit symmetric tensor of rank two may unfit unsymmetric tensor.