Manual de referencia de MQL5Métodos de matrices y vectoresMatrix ClassificationIsLowerHessenberg IsSymmetricIsHermitianIsUpperTriangularIsLowerTriangularIsTrapezoidalIsUpperHessenbergIsLowerHessenbergIsTridiagonalIsUpperBidiagonalIsLowerBidiagonalIsDiagonalIsScalar IsLowerHessenberg Check if a square matrix is lower Hessenberg matrix. bool matrix::IsLowerHessenberg(); Return Value True if square matrix is lower Hessenberg matrix. Note Lower Hessenberg matrix contains all zeros above the superdiagonal. Tridiagonal matrix is Hessenberg matrix. Lower triangular matrix is lower Hessenberg matrix. Upper Hessenberg matrix v v 0 0 0 0 v v v 0 0 0 v v v v 0 0 v v v v v 0 v v v v v v v v v v v v IsUpperHessenberg IsTridiagonal