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  2. Concatenation - Wikipedia

    en.wikipedia.org/wiki/Concatenation

    A spreadsheet's concatenate ("&") function is used to assemble a complex text string—in this example, XML code for an SVG "circle" element. In formal language theory and computer programming, string concatenation is the operation of joining character strings end-to-end. For example, the concatenation of "snow" and "ball" is "snowball".

  3. Cointegration - Wikipedia

    en.wikipedia.org/wiki/Cointegration

    Cointegration is a statistical property of a collection (X 1, X 2, ..., X k) of time series variables. First, all of the series must be integrated of order d.Next, if a linear combination of this collection is integrated of order less than d, then the collection is said to be co-integrated.

  4. Hadamard matrix - Wikipedia

    en.wikipedia.org/wiki/Hadamard_matrix

    Let H be a Hadamard matrix of order n.The transpose of H is closely related to its inverse.In fact: = where I n is the n × n identity matrix and H T is the transpose of H.To see that this is true, notice that the rows of H are all orthogonal vectors over the field of real numbers and each have length .

  5. Concatenative programming language - Wikipedia

    en.wikipedia.org/wiki/Concatenative_programming...

    The properties of concatenative languages are the result of their compositional syntax and semantics: The reduction of any expression is the simplification of one function to another function; it is never necessary to deal with the application of functions to objects.

  6. Link Capacity Adjustment Scheme - Wikipedia

    en.wikipedia.org/wiki/Link_Capacity_Adjustment...

    Link Capacity Adjustment Scheme or LCAS is a method to dynamically increase or decrease the bandwidth of virtual concatenated containers. The LCAS protocol is specified in ITU-T G.7042.

  7. cat (Unix) - Wikipedia

    en.wikipedia.org/wiki/Cat_(Unix)

    Command Explanation cat file1.txt : Display contents of file cat file1.txt file2.txt: Concatenate two text files and display the result in the terminal cat file1.txt file2.txt > newcombinedfile.txt: Concatenate two text files and write them to a new file cat >newfile.txt: Create a file called newfile.txt. Type the desired input and press CTRL+D ...

  8. Catenation - Wikipedia

    en.wikipedia.org/wiki/Catenation

    Catenation occurs most readily with carbon, which forms covalent bonds with other carbon atoms to form long chains and structures. This is the reason for the presence of the vast number of organic compounds in nature.

  9. Two-body problem - Wikipedia

    en.wikipedia.org/wiki/Two-body_problem

    where μ is the reduced mass and r is the relative position r 2 − r 1 (with these written taking the center of mass as the origin, and thus both parallel to r) the rate of change of the angular momentum L equals the net torque N = = ˙ ˙ + ¨ , and using the property of the vector cross product that v × w = 0 for any vectors v and w ...