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Array in most programming langauges like C ,C++, Java etc is a static , homogeneous and linear data structure. A data structure itself is a mathematical and logical model to organise data.It clearly specifies the domain of the data that can be stored in the structure and the collection of valid operations (functions) that can be performed on that data. Array is a linear structure in the sense that the data is organised sequentially(one after another in a contineous chunck of memory). It is a homogeneous data structure i.e. it contains elements which are of the same data type.The data type of array can be inbuilt like int , float ,char, double and even user defined that is created using a structure or a class. The main use of an array is to oragnise homogeneous data together as a group to perform operations on data in a collective manner since traversal and retrieval becomes easy.Whenever a homogeneous list(One Dimendional or Multi-Dimensional)has to be implemented we make use of array.The advantage of array lies in the fact that it uses indexed represenattion enabling us to access any member element directly. The example of practical use of array in progarmming will be creation of index lists, pointer arrays,matrix operations(transpose,addition ,subtraction,multiplication,inverse etc.).
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How do you empty an array in PHP?
To empty an array in PHP you need to use the unset function like shown below: <?php $array = array('hello', 'hi', 'weee'); unset($array); // empty ?>
What is the difference between array and control array?
An array is a set of values that are logically related to each other, such as the number of students in each grade in a grammar school. An array allows you to refer to these related values by the same name and to use a number, called an index or subscript, to tell them apart. The individual values are called the elements of the array. They are contiguous from index 0 through the highest index value. A control array is a group of controls that share the same name type and the same event procedures. Adding controls with control arrays uses fewer resources than adding multiple control of same type at design time.
What is the difference between numeric array and associative array?
Numeric array has numbers(+integers) that represent the values Associative array has strings that represent the values
Can a prime number be made into an array?
Yes, a unit array.
What is square array?
It is an array with the same number of rows and columns.
