Principal submatrix

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Principal, Principal parts, Principal dancer, Vice-principal, Principal Financial Group, Principal–agent problem, Principal bundle, Principal (academia), Principal of the University of Glasgow, Connection (principal bundle), Sheriff principal, Principal Clerk of Session and Justiciary, Principal axis, Principal component analysis, The Principal and the Pauper, Principal Skinner, Victoria Principal, Principal meridian, Principal investigator, Principal teacher, Teatre Principal de Maó, Principal Feast, Principal Holy Day (Anglicanism), The Principal Upanishads, Principal curvature, Principal direction, The Principal, Principal Hotel Company, Principal Galaxies Catalogue, Principal naval transport officer (Royal Navy), Fourth principal meridian, Principal Cordillera, Fifth principal meridian, List of Welsh principal areas, Sixth principal meridian, Principal Secretary, Principal city, Cauchy principal value, Princess Principal: Crown Handler, Principal ideal ring, Principal (music), Principal areas of Wales, Principal quantum number, Principal Secretary (Canada), Principal Edwards Magic Theatre, Principal type, Principal secretary (India), Principal of the University of St Andrews, Third principal meridian, Principal area, Principal series, Principal council, Second principal meridian, List of principals of Brasenose College, Oxford, Principal Group, Principal photography, First principal meridian, Principal Upanishads, Principal officials of Hong Kong, Principal Register, Principal component regression, Multilinear principal component analysis, Principal trade, List of principals of King's College London, Principal Private Secretary to the Prime Minister of the United Kingdom, List of Principal Chiefs of the Cherokee, Principal (computer security), Principal response curve, Vice Principals, List of principal leaders of the Crusades, Principal Solicitor for Ireland, John Lee (university principal), List of principals of Somerville College, Oxford, Krull's principal ideal theorem, Principal ideal domain, Wellcome Trust Principal Research Fellowship, Teatro Principal de València, Principal Charity Classic, Principal Stakes, Principal U(1)-bundle, Principal series representation, Principal form of a polynomial, List of principals of the University of Aberdeen, Principal protected note, List of First and Principal Naval Aides-de-Camp, Principal SU(2)-bundle, Principal warfare officer, List of species and habitats of principal importance in England, Principal orbit type theorem, Principal sensory nucleus of trigeminal nerve, Principal gerbil, Principal variation search, Principal interacting orbital, The Principal (Vice Principals), Uniform Principal and Income Act, General Securities Principal Exam, Principal Triangulation of Great Britain, List of principals and fellows of Jesus College, Oxford, Principal Richard Pound, List of Phillips Exeter Academy principals, National Association of Secondary School Principals, List of principals of Hertford College, Oxford, Ascending chain condition on principal ideals, List of principals of the University of Edinburgh, Uniform Fiduciary Income and Principal Act, Principal Private Secretary to the Secretary of State for Foreign and Commonwealth Affairs, Principal (commercial law), Principal curvature-based region detector, The Principal's Office, Principal value, North and East of First Principal Meridian, Partially disclosed principal, Principal, Ecuador, Structure theorem for finitely generated modules over a principal ideal domain, Go and Ask Peggy for the Principal Thing, Principal Olivil, Ribeira Principal, Engin Principal du Génie, Principal Place, Head teacher, Principal ideal, Principal branch, Principal Tower, Papel Principal, Principal (Catholic Church), L1-norm principal component analysis, List of Principals of Elizabeth College, Guernsey, List of principals of Lady Margaret Hall, Oxford, Principal Park, Robert Howie (principal), Princess Principal, Multiple principal problem, Alameda Principal, Principal boy, Ten principal disciples, Principal Charming, Principal Painter in Ordinary, Ape Principal, Principal balance, Principal part, El Principal Airport, Leader of the Green Party of England and Wales, Principal Theatre (Pontevedra), Undisclosed principal, Principal point, Matthew Smyth (principal), Cardinal point (optics), Principal stratification, List of principals of Green Templeton College, Oxford, Robert Boyd (university principal), Principal (criminal law)