Where does “eigenplane” come from?
eigenplane (English) comes from English plane, from Middle English plane, from Old French plane, from Latin platanus, from Greek πλάτανος, from Ancient Greek πλάτανος, from Ancient Greek πλατύς, from Proto-Indo-European pléth₂us — flat.
eigenplane (English): A two-dimensional invariant subspace in a given vector space
Definitions
- A two-dimensional invariant subspace in a given vector space
Ancestry of “eigenplane”, step by step
| Step | Language | Word | Meaning |
|---|---|---|---|
| 1 | English | plane | Of a surface: flat or level; A level or flat... |
| 2 | Middle English | plane | — |
| 3 | Old French | plane | — |
| 4 | Latin | platanus | planetree, sycamore |
| 5 | Greek | πλάτανος | plane tree |
| 6 | Ancient Greek | πλάτανος | planetree |
| 7 | Ancient Greek | πλατύς | wide, broad; flat, level; broad-shouldered |
| 8 | Proto-Indo-European | pléth₂us | flat, broad |
| 9 | Proto-Indo-European | pleth₂- | flat |