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vander

Vandermonde matrix

Syntax

A = vander(v)

Description

A = vander(v) returns the Vandermonde matrix whose columns are powers of the vector v, that is, A(i,j) = v(i)^(n-j), where n = length(v).

Examples

vander(1:.5:3)

ans =

    1.0000    1.0000    1.0000    1.0000    1.0000
    5.0625    3.3750    2.2500    1.5000    1.0000
   16.0000    8.0000    4.0000    2.0000    1.0000
   39.0625   15.6250    6.2500    2.5000    1.0000
   81.0000   27.0000    9.0000    3.0000    1.0000

See Also

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