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  2. R-tree - Wikipedia

    en.wikipedia.org/wiki/R-tree

    The key idea is to use the bounding boxes to decide whether or not to search inside a subtree. In this way, most of the nodes in the tree are never read during a search. Like B-trees, R-trees are suitable for large data sets and databases , where nodes can be paged to memory when needed, and the whole tree cannot be kept in main memory.

  3. Angular (web framework) - Wikipedia

    en.wikipedia.org/wiki/Angular_(web_framework)

    Angular (also referred to as Angular 2+) [4] is a TypeScript-based free and open-source single-page web application framework. It is developed by Google and by a community of individuals and corporations. Angular is a complete rewrite from the same team that built AngularJS.

  4. AngularJS - Wikipedia

    en.wikipedia.org/wiki/AngularJS

    Angular 5 was released on November 1, 2017. [24] Key improvements in Angular 5 include support for progressive Web apps, a build optimizer and improvements related to Material Design. [25] Angular 6 was released on 3 May 2018, [26] Angular 7 was released on 18 October 2018, and Angular 8 was released on May 28, 2019. Angular follows Semantic ...

  5. Pinaceae - Wikipedia

    en.wikipedia.org/wiki/Pinaceae

    Many of these studies use methyl jasmonate (MJ) as an antagonist. [ 27 ] [ 28 ] [ 33 ] Methyl jasmonate is known to be able to induce defense responses in the stems of multiple Pinaceae species. [ 27 ] [ 33 ] It has been found that MJ stimulated the activation of PP cells and formation of xylem traumatic resin ducts (TD).

  6. Wollemia - Wikipedia

    en.wikipedia.org/wiki/Wollemia

    The male cones are slender conic, 5–11 cm (2.0–4.3 in) long and 1–2 cm (0.39–0.79 in) broad and reddish-brown in colour and are lower on the tree than the seed cones. [3] Seedlings appear to be slow-growing [ 3 ] and mature trees are extremely long-lived; some of the older individuals today are estimated to be between 500 and 1,000 ...

  7. Cone (category theory) - Wikipedia

    en.wikipedia.org/wiki/Cone_(category_theory)

    By the above, we can define the category of cones to F as the comma category (Δ ↓ F).Morphisms of cones are then just morphisms in this category. This equivalence is rooted in the observation that a natural map between constant functors Δ(N), Δ(M) corresponds to a morphism between N and M.

  8. Second-order cone programming - Wikipedia

    en.wikipedia.org/wiki/Second-order_cone_programming

    A second-order cone program (SOCP) is a convex optimization problem of the form . minimize subject to ‖ + ‖ +, =, …, = where the problem parameters are ...

  9. Angular spectrum method - Wikipedia

    en.wikipedia.org/wiki/Angular_spectrum_method

    The angular spectrum method is a technique for modeling the propagation of a wave field. This technique involves expanding a complex wave field into a summation of infinite number of plane waves of the same frequency and different directions.