**Functiona PDF, ePub eBook**

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**File :** functiona.pdf

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**File :** functiona.pdf

**BOOK SUMMARY :**

In mathematics a function is a relation between sets that associates to every element of a first set exactly one element of the second set typical examples are functions from integers to integers or from the real numbers to real numbers functions were originally the idealization of how a varying quantity depends on another quantity for example the position of a planet is a function of timevertical line test on a graph the idea of single valued means that no vertical line ever crosses more than one value if it crosses more than once it is still a valid curve but is not a function some types of functions have stricter rules to find out more you can read injective surjective and bijective infinitely many my examples have just a few values but functions usually work on the third concept is detailed in the article on higher order functions commonly the space is a space of functions in this case the functional is a function of a function and some older authors actually define the term functional to mean function of a functionazure functions is a solution for easily running small pieces of code or functions in the cloud you can write just the code you need for the problem at hand without worrying about a whole application or the infrastructure to run itfunctional definition is of connected with or being a function how to use functional in a sentence

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