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2. P versus NP problem - Wikipedia

   en.wikipedia.org/wiki/P_versus_NP_problem

   First, it can be false in practice. A theoretical polynomial algorithm may have extremely large constant factors or exponents, rendering it impractical. For example, the problem of deciding whether a graph G contains H as a minor, where H is fixed, can be solved in a running time of O(n 2), [2] where n is the number of vertices in G.

3. List of NP-complete problems - Wikipedia

   en.wikipedia.org/wiki/List_of_NP-complete_problems

   Examples include biological or social networks, which contain hundreds, thousands and even billions of nodes in some cases (e.g. Facebook or LinkedIn). 1-planarity [1] 3-dimensional matching [2] [3]: SP1 Bandwidth problem [3]: GT40 Bipartite dimension [3]: GT18 Capacitated minimum spanning tree [3]: ND5

4. NP (complexity) - Wikipedia

   en.wikipedia.org/wiki/NP_(complexity)

   Whether these problems are not decidable in polynomial time is one of the greatest open questions in computer science (see P versus NP ("P = NP") problem for an in-depth discussion). An important notion in this context is the set of NP-complete decision problems, which is a subset of NP and might be informally described as the "hardest ...

5. Pseudorandom noise - Wikipedia

   en.wikipedia.org/wiki/Pseudorandom_noise

   A pseudo-noise code (PN code) or pseudo-random-noise code (PRN code) is one that has a spectrum similar to a random sequence of bits but is deterministically generated. The most commonly used sequences in direct-sequence spread spectrum systems are maximal length sequences , Gold codes , Kasami codes , and Barker codes .

6. National Council Licensure Examination - Wikipedia

   en.wikipedia.org/wiki/National_Council_Licensure...

   Examples of the new formats include identifying and selecting a particular area of a drawn body part, selecting multiple correct answers via check boxes, free response mathematical questions usually involving medication calculations, and ordering the steps of a medical or nursing procedure. [citation needed]

7. Pseudorandom binary sequence - Wikipedia

   en.wikipedia.org/wiki/Pseudorandom_binary_sequence

   Other examples are Gold sequences (used in CDMA and GPS), Kasami sequences and JPL sequences, all based on LFSRs. In telecommunications, pseudorandom binary sequences are known as pseudorandom noise codes (PN or PRN codes) due to their application as pseudorandom noise.