D1 = diag(inv(A)) (dense ) = size 25 DiagonalMatrix of double: [ 0.421266 0.332583 0.324223 0.332583 0.421266 0.332583 0.267952 0.262229 0.267952 0.332583 0.324223 0.262229 0.257087 0.262229 0.324223 0.332583 0.267952 0.262229 0.267952 0.332583 0.421266 0.332583 0.324223 0.332583 0.421266 ]

D2 = diag(inv(A)) (sparse) = size 25 DiagonalMatrix of double: [ 0.421266 0.332583 0.324223 0.332583 0.421266 0.332583 0.267952 0.262229 0.267952 0.332583 0.324223 0.262229 0.257087 0.262229 0.324223 0.332583 0.267952 0.262229 0.267952 0.332583 0.421266 0.332583 0.324223 0.332583 0.421266 ]

|D1-D2| = 5.43896e-16

