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2. Ordinal numeral - Wikipedia

   en.wikipedia.org/wiki/Ordinal_numeral

   Ordinal indicator – Character(s) following an ordinal number (used when writing ordinal numbers, such as a super-script) Ordinal number – Generalization of "n-th" to infinite cases (the related, but more formal and abstract, usage in mathematics) Ordinal data, in statistics; Ordinal date – Date written as number of days since first day of ...

3. Sorting number - Wikipedia

   en.wikipedia.org/wiki/Sorting_number

   In mathematics and computer science, the sorting numbers are a sequence of numbers introduced in 1950 by Hugo Steinhaus for the analysis of comparison sort algorithms. These numbers give the worst-case number of comparisons used by both binary insertion sort and merge sort. However, there are other algorithms that use fewer comparisons.

4. Ordinal number - Wikipedia

   en.wikipedia.org/wiki/Ordinal_number

   Every well-ordered set (S,<) is order-isomorphic to the set of ordinals less than one specific ordinal number under their natural ordering. This canonical set is the order type of ( S ,<). Essentially, an ordinal is intended to be defined as an isomorphism class of well-ordered sets: that is, as an equivalence class for the equivalence relation ...

5. Order (mathematics) - Wikipedia

   en.wikipedia.org/wiki/Order_(mathematics)

   Lexicographical order, an ordering method on sequences analogous to alphabetical order on words; List of order topics, list of order theory topics; Order theory, study of various binary relations known as orders; Order topology, a topology of total order for totally ordered sets; Ordinal numbers, numbers assigned to sets based on their set ...

6. Natural number - Wikipedia

   en.wikipedia.org/wiki/Natural_number

   A total order on the natural numbers is defined by letting a ≤ b if and only if there exists another natural number c where a + c = b. This order is compatible with the arithmetical operations in the following sense: if a, b and c are natural numbers and a ≤ b, then a + c ≤ b + c and ac ≤ bc.

7. We all need HGH, the hormone responsible for growth. What ...

   www.aol.com/hgh-hormone-responsible-growth...

   How the stock market defied expectations again this year, by the numbers. Finance. Benzinga. The Property Brothers fear Trump's tariffs could send construction costs soaring. Food. Food.