                       MatMult: norm difference < 1e-12
              MatMultTranspose: norm difference < 1e-12
             MatMultAdd v2==v3: norm difference < 1e-12
             MatMultAdd v2!=v3: norm difference < 1e-12
    MatMultTransposeAdd v2==v3: norm difference < 1e-12
    MatMultTransposeAdd v2!=v3: norm difference < 1e-12
