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Which matrix has most of the elements (not all) as Zero?

(a) Identity Matrix

(b) Unit Matrix

(c) Sparse Matrix

(d) Zero Matrix

This key question is from Arrays Types topic in portion Arrays Types of Data Structures & Algorithms I

I got this question in unit test.

1 Answer

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by (408k points)
Right choice is (c) Sparse Matrix

To explain: Sparse Matrix is a matrix in which most of the elements are Zero. Identity Matrix is a matrix in which all principle diagonal elements are 1 and rest of the elements are Zero. Unit Matrix is also called Identity Matrix. Zero Matrix is a matrix in which all the elements are Zero.

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