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In linear algebra, the identity matrix of size n {\displaystyle n} is the n × n {\displaystyle n\times n} square matrix with ones on the main diagonal and zeros elsewhere. It has unique properties; for example when the identity matrix represents a geometric transformation, the object remains unchanged by the transformation. In other contexts, it is…
Measurement, Properties & Terminology and notation
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matrix identity displaystyle matrices times square unit also used linear size ones notation properties group diagonal elsewhere represents transformation invertible
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Identity matrix | is a | unit vector e i | 0.90 | text |
| Identity matrix | is a | only idempotent matrix with non-zero determinant | 0.90 | text |
| Identity matrix | is a | zeroth Pauli matrix | 0.90 | text |
| Identity matrix | related to Properties | When | 0.60 | section |
| Identity matrix | related to Properties | In | 0.60 | section |
| Identity matrix | related to Properties | GL | 0.60 | section |
| Identity matrix | related to Properties | It | 0.60 | section |
| Identity matrix | related to Terminology and notation | The | 0.60 | section |
| Identity matrix | see also | Binary | 0.60 | section |
| Identity matrix | see also | Elementary | 0.60 | section |
| Identity matrix | see also | Pauli | 0.60 | section |
| Identity matrix | see also | Householder | 0.60 | section |
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