eig2

eigenvalue and vectors of a symmetric 2x2 matrix

Syntax

lambda = eig2(M)
lambda = eig2(a11,a12,a22)
[omega,lambda] = eig2(a11,a12,a22)

Input

M

array of symmetric 3x3 matrix

a11, a12,a22

vector of matrix elements

Output

lambda

eigen values

v

eigen vectors

omega

angle of the largest eigen vector