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	<owl:Ontology rdf:about="http://terminologickyportal.sk/wiki/Special:ExportRDF/Term-C3-ADn-3Aortogon-C3-A1lna_matica">
		<swivt:creationDate rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2026-04-25T15:57:54+02:00</swivt:creationDate>
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		<rdf:type rdf:resource="http://terminologickyportal.sk/wiki/Special:URIResolver/Category-3AMatematika"/>
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		<rdfs:label>ortogonálna matica</rdfs:label>
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		<property:Has_comment rdf:datatype="http://www.w3.org/2001/XMLSchema#string">Ekvivalentne môžeme definovať ako ortogonálnu maticu takú maticu $\mathbb{Q} \in R^{n\times n},$ ktorá je regulárna a spĺňa $\mathbb{Q}^{-1} = \mathbb{Q}^{T}.$ Z toho vyplýva, že aj $\mathbb{Q}\,\mathbb{Q}^{-1} = E_n,$ a teda $\mathbb{Q}\,\mathbb{Q}^{T} = E_n,$ čiže aj riadky ortogonálnej matice tvoria ortonormálny systém vektorov.</property:Has_comment>
		<property:Has_definition rdf:datatype="http://www.w3.org/2001/XMLSchema#string">Štvorcová matica $\mathbb{A}$ sa nazýva ortogonálna, ak jej stĺpce sú ortonormálne, teda ak $\mathbb{A}^T\cdot\mathbb{A} = \mathbb{E}_n.$</property:Has_definition>
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		<property:Is_taken_from rdf:datatype="http://www.w3.org/2001/XMLSchema#string">Rosa S; Harman R: Maticová algebra pre štatistiku a dátovú vedu. Bratislava: FMFI UK  2022</property:Is_taken_from>
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