| Display title | First variation |
| Default sort key | First variation |
| Page length (in bytes) | 1,564 |
| Namespace ID | 0 |
| Page ID | 232599 |
| Page content language | en - English |
| Page content model | wikitext |
| Indexing by robots | Allowed |
| Number of redirects to this page | 0 |
| Counted as a content page | Yes |
| HandWiki item ID | None |
| Edit | Allow all users (infinite) |
| Move | Allow all users (infinite) |
| Page creator | imported>WikiEditor |
| Date of page creation | 02:07, 22 December 2020 |
| Latest editor | imported>WikiEditor |
| Date of latest edit | 02:07, 22 December 2020 |
| Total number of edits | 1 |
| Recent number of edits (within past 90 days) | 0 |
| Recent number of distinct authors | 0 |
Description | Content |
Article description: (description)
This attribute controls the content of the description and og:description elements. | In applied mathematics and the calculus of variations, the first variation of a functional J(y) is defined as the linear functional $ \delta J(y) $ mapping the function h to
$ \delta J(y,h)=\lim _{\varepsilon \to 0}{\frac {J(y+\varepsilon h)-J(y)}{\varepsilon }}=\left.{\frac {d}{d\varepsilon }}J(y+... |
