this post was submitted on 11 Dec 2023
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In mathematics:
Eigenvektor
Nonmathematical, but same root, eigengrau, aka, the patterns you see if you press on your closed eyes.
Aah, there's a word for it. I have been looking for it for ages.
I guess I should note that I've heard people calling the patterns eigengrau, but there doesn't seem to be anything in the wikipedia about stimulating the effect with pressure.
Apparently phosphene is the general term for seeing things that aren't photons.
I think the original mathematician that proposed this idea was named Mr. Eigen, so eigenvector doesn't actually refer to the german word "eigen".
If I remember right the term was introduced by Hilbert
this is not true. The eigenvectors direction remains unchanged by the matrix representing alinear mapping. it is therefore characteristic to the matrix, hence the term "eigen".