RE: [eigen] Question regarding an operation

[Trevor Irons <tirons@xxxxxxxxxxxx>]

You need to read up about array's to understand this:

http://eigen.tuxfamily.org/dox/group__TutorialArrayClass.html

As long as your algebra is correct, 

float beta = (r*(S_I*R)).array().sqrt();

should work. 

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From: Nuno Marques [n.marques21@xxxxxxxxxxx]
Sent: Monday, August 24, 2015 3:39 PM
To: eigen@xxxxxxxxxxxxxxxxxxx
Subject: [eigen] Question regarding an operation

Hello there,

I want to question the community regarding the following:

Matrix<float, n_y, n_x> C;

Vector2f r = y - C * _x;

Matrix<float, n_y, n_y> S_I = (C * _P * C.transpose() + R).inverse();

I want to compute,

float beta = sqrt(r * (S_I * r));

... but I'm not being able to. Can anyone suggest a solution to this? I tried many combinations, but without luck.

Thanks in advance! Best regards,

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Nuno Marques
Tenente Aluno de Transmissões (Eng)

+351 912 090 991

Azambuja | Portugal

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