Hankel matrix
= Hankel matrix
{wiki=Hankel_matrix}
A Hankel matrix is a specific type of structured matrix that has the property that each ascending skew-diagonal from left to right is constant. In more formal terms, a Hankel matrix is defined by its entries being determined by a sequence of numbers; the entry in the \\(i\\)-th row and \\(j\\)-th column of the matrix is given by \\(h_\{i,j\} = a_\{i+j-1\}\\), where \\(a\\) is a sequence of numbers.