testmatrix - generate some particular matrices

Calling Sequence

[y]=testmatrix(name,n)

Parameters

• name : a character string
• n : integers, matrix size
• y : n x m matrix

Description

Create some particular matrices

testmatrix('magi',n) : returns a magic square of size n .

testmatrix('frk',n) : returns the Franck matrix :

testmatrix('hilb',n) : is the inverse of the nxn Hilbert matrix (Hij= 1/(i+j-1)).