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identity matrix


from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A square matrix with 1's along the diagonal from upper left to lower right and 0's in all other positions.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A diagonal matrix all of the diagonal elements of which are equal to 1.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a scalar matrix in which all of the diagonal elements are unity


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