Introduction In early American history, Indian was considered as barbarous and brute. They had not been referred as significant existence of American history., Some settlers, however , had an affiliation with Indian such as John Smith and Pokaontas’ marriag...
Chapter 1 Sturm’s Theorem 1.1 Sturm’s Thorem Definition 1.1 We define that the number of changed sign V (a1, · · · , an) for a = 1, · · · , an ∈ R is as follows. For the sequense (a1, · · ·...