Mathematics: Linear Algebra

Preface
This blog is a "MA students - Linear Algebra" question and answer summary form.
In addition, some good reference material.

• Rank and geometric meaning of the determinant
• Non-called rank can not have rank only solution
• Understand the Matrix series (I, II, III)

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First, the vector space

• Vector space and living space contrast to what their respective two elements are? , Section 1
• Why say a product is defined by the length and angle, and let the space to be Euclidean space , subsections 2, 3