# Documentation

### This is machine translation

Translated by
Mouse over text to see original. Click the button below to return to the English verison of the page.

라이선스가 부여된 사용자만 번역 문서를 볼 수 있습니다. 번역 문서를 보려면 로그인하십시오.

# hankel

H = hankel(c)
H = hankel(c,r)

## Description

H = hankel(c) returns the square Hankel matrix whose first column is c and whose elements are zero below the first anti-diagonal.

H = hankel(c,r) returns a Hankel matrix whose first column is c and whose last row is r. If the last element of c differs from the first element of r, the last element of c prevails.

## Definitions

A Hankel matrix is a matrix that is symmetric and constant across the anti-diagonals, and has elements h(i,j) = p(i+j-1), where vector p = [c r(2:end)] completely determines the Hankel matrix.

## Examples

collapse all

Create the Hankel matrix whose first column is c and whose last row is r.

c = 1:3;
r = 3:6;
h = hankel(c,r)
h =

1     2     3     4
2     3     4     5
3     4     5     6