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Topic: vector and array element multiplication
Replies: 6   Last Post: Apr 19, 2013 6:47 PM

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 Gorbeña Posts: 4 Registered: 4/18/13
vector and array element multiplication
Posted: Apr 18, 2013 9:26 PM

Hi,
I would like to create a second order polynomial from a vector or a matrix. Each element of the vector or matrix corresponds to an independedent variable.

Given vector A, where A = [x1 x2 x3], I want the following result:

[x1 x1² x1*x2 x1*x3 x2 x2*x1 x2² x1*x3 x3 x3*x1 x3*x2 x3²]

In case I have matrix B = [a1 a2 a3; b1 b2 b3], the desired result will be:

[a1 a1² a1*a2 a1*a3 a2 a2*a1 a2² a1*a3 a3 a3*a1 a3*a2 a3²;
b1 b1² b1*b2 b1*b3 b2 b2*b1 b2² b1*b3 b3 b3*b1 b3*b2 b3²]

Does anybody knows how to do this?

Thanks

Date Subject Author
4/18/13 Gorbeña
4/18/13 Nasser Abbasi
4/19/13 Gorbeña
4/19/13 Bruno Luong
4/19/13 Gorbeña
4/19/13 Steven Lord
4/19/13 Bruno Luong