Open rstrauss-logyx opened 4 years ago
As long as the two results (for the second eigenvector) are a scalar multiple of each other, it's alright. There's infinitely many eigenvectors for any given eigenvalue. Their union is the corresponding eigenspace.
Still, the "we can verify" statements are wrong. The first statement should have the 4-3i/5 (not the 4+3i/5) and the second should have the 4+3i/5...
In reference to version 224734d7be7ff0c4a8adb3a206356ea122112f33 a.k.a. https://textbooks.math.gatech.edu/ila/complex-eigenvalues.html The 3x3 example is wrong. The eigenvalues are correct, but the last 2 "We can verify" statements is wrong. The product of the first 2 is the middle matrix, but that's not the right product. This is easily seen in the 3rd (bottom) term. Maybe you just matched the eigenvalue 2 with eigenvector 3... At the same time, MatLab gives eigenvector 2 as -0.3660 - 0.2745i -0.2745 + 0.3660i 0.7625 + 0.0000i Why is MatLab's eigenvector about 1/32 as large? Does this factor matter?