EntityQ370634· pop 15· linked from 193 articlesgeneralized inverseSign in to savematrix satisfying some of the criteria of an inverseConnectionsimageEntitymathematicsEntityalgebraEntityInternational Standard Book NumberEntitymultiplicationEntitydigital object identifierEntitymatrixEntityRoger PenroseEntitysystem of linear equationsEntityringEntityassociativityEntityJSTOREntityCambridge University PressEntityidentity matrixEntitysemigroupEntitysquare matrixEntitymathematical structureEntityinverse elementEntityinvertible matrixEntityzero matrixEntityCategoriesMathematical terminologyMatrices (mathematics)