The elementary transformation of matrix is widely used in linear algebra.Taking the elementary row transformation as an example,the examples of the non-degenerate elementary transformation,the degenerate elementary transformation and the corresponding geometric figures are given,On this basis,rotation at any angle is provided.In the teaching process,by exploring the geometric significance of elementary transformations,it can help students to establish a unified view of algebra and geometry,and promote the coordinated development of abstract thinking and visual thinking.
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