Concatenation (mathematics)

Concatenation (mathematics)

In mathematics, concatenation is the joining of two numbers by their numerals. That is, the concatenation of 123 and 456 is 123456. Concatenation of numbers a and b is denoted a||b. Relevant subjects in recreational mathematics include Smarandache-Wellin numbers, home primes, and Champernowne's constant. The convention for sequences at places such as the Online Encyclopedia of Integer Sequences is to have sequences of concatenations include as the first term a number prior to the actual act of concatenation. Therefore, care must be taken to ensure that parties discussing a topic agree either with this convention or with plain language. For example, the first term in the sequence of concatenations of increasing even numbers may be taken to be either 24, as would seem obviously correct, or simply 2, according to convention.

Read more about Concatenation (mathematics):  Calculation, Vector Extension

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Concatenation (mathematics) - Vector Extension
... The concatenationof vectors can be understood in two distinct ways either as a generalization of the above operation for numbers or as a concatenationof lists ... Given two vectors in, concatenationcan be defined as In the case of vectors in, this is equivalent to the above definition for numbers ... Since vectors can be viewed in a certain way as lists, concatenationmay take on another meaning ...