The Property of Isogonal Basis in the n-dimensional Euclidean Space

Isogonal Basis is a generalization for the orthogonal basis.The properties of isogonal basis and orthogonal basis are similar.So discussing the property of isogonal basis can give us a tool of analyzing Euclidean space and deepen apprehend of Euclidean space for us.This paper mainly extends the property of orthogonal basis to isogonal basis and gets five principles.