hankel (Matlab function)

Hankel matrix

Matlab/Scilab equivalent

Matlab	Scilab
hankel	hank

Particular cases

The main difference between Scilab and Matlab function is that they do not use the same input values to build an Hankel matrix. If in Matlab, you just have to give a column vector (and eventually a row vector), Scilab function requires the size of the Hankel matrix to build and a covariance sequence vector for this matrix. (See syntax below)

Examples

Matlab

Scilab

H1 = hankel(C1)
                        H2 = hankel(C2, R2)

function H=hankel(C, R)
                        [lhs, rhs] = argn(0);
                        if rhs == 1 then
                        N = size(C, "*");
                        COV = [matrix(C, 1, -1), zeros(1, N)];
                        H = hank(N, N, COV);
                        else
                        M = size(C, "*");
                        N = size(R, "*");
                        COV = [matrix(C, 1, -1), matrix(R(2:$), 1, -1)];
                        H = hank(M, N, COV);
                        end
                        endfunction

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Last updated:
Mon Oct 01 17:40:37 CEST 2012