EntityQ1970975· pop 8· linked from 44 articlessingular matrixSign in to savesquare matrix without an inverseConnectionsGottfried Wilhelm LeibnizEntitylinear algebraEntityPierre-Simon LaplaceEntitycryptographyEntitydigital object identifierEntityInternational Standard Serial NumberEntitymachine learningEntitykinematicsEntityAugustin-Louis CauchyEntitydeterminantEntitybibcodeEntityisomorphismEntityinverse functionEntityGaussian eliminationEntitylinear regressionEntitysquare matrixEntityinvertible matrixEntityprincipal component analysisEntityTakakazu SekiEntitycoding theoryEntityCategoriesLinear algebraMatrices (mathematics)