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单词 Linearly Dependent Vectors
释义

Linearly Dependent Vectors

Vectors , , ..., are linearly dependent Iff thereexist Scalars , , ..., , not all zero, such that

(1)

where Einstein Summation is used and , ..., . If no such Scalars exist,then the vectors are said to be linearly independent. In order to satisfy the Criterion for linear dependence,
(2)


(3)

In order for this Matrix equation to have a nontrivial solution, the Determinant must be 0, so the Vectors are linearly dependent if
(4)

and linearly independent otherwise.


Let and be -D Vectors. Then the following three conditions are equivalent(Gray 1993).

1. and are linearly dependent.

2. .

3. The Matrix has rank less than two.


References

Gray, A. Modern Differential Geometry of Curves and Surfaces. Boca Raton, FL: CRC Press, pp. 186-187, 1993.


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