Author: risingtides Format: MarkdownItexMention the fact that eigenvectors are sometimes required to be nonzero.
<a href="https://ncatlab.org/nlab/revision/diff/eigenvector/4">diff</a>, <a href="https://ncatlab.org/nlab/revision/eigenvector/4">v4</a>, <a href="https://ncatlab.org/nlab/show/eigenvector">current</a>
Mention the fact that eigenvectors are sometimes required to be nonzero.