Identity matrix: Difference between revisions
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(New page: In linear algebra, the '''identity matrix''' or '''unit matrix''' is the square matrix with ones on the main diagonal and zeros elsewhere. It leaves intact any matrix on multiplication...) |
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Revision as of 12:15, 11 February 2008
In linear algebra, the identity matrix or unit matrix is the square matrix with ones on the main diagonal and zeros elsewhere. It leaves intact any matrix on multiplication by it (either on the left, or on the right).