What is a two -dimensional field?

The two -dimensional field is a very common type of data structure and is used in one or the other with almost all computer programming languages. In such a field, the data elements of the same type are arranged in a format, which is usually shown as a table with rows and columns. Specific techniques used to find data elements in memory differ from language to language and case on the case, but the most effective varieties allow a simple mathematical calculation to be used to find a specific memory address of any field element. The fields are so common that many languages ​​include fields as a basic data type.

The fields are some of the most common data structures used by computer programmers. The field is defined as a number of data elements that can be uniquely identified by some of the number of indices. It is a common practice to mark a field that has a number of dimensions equal to the number of index items needed to find a specific data element. In one -gone of the field that is in the afterList, each data element can be placed by linking to its position in the list. The two -dimensional field uses two indices to identify each data element and can be visualized as a table with rows and columns.

Each data element in a standard two -dimensional field consists of the same type of object. Field elements are most often simple variables such as floats or integers. In principle, however, any type of information can be stored in the field if each item is the same. The two -dimensional field is a natural option for storing any data that would naturally place it in the table, and this data type is often used to do exactly it.

Ideally, the entire two -dimensional field can be placed in one continuous memory block. This allows very fast access because a particular memory address of each individual data element inside a dimensional field can be calculatedEmatically using a formula based on the size needed for each data item. In practice, this is not always possible and the fields can be stored in different parts of the memory, a process that reduces the speed at which the elements can be accessed.

The most basic variety of two -dimensional fields is of a fixed size and uses integer values ​​for indices. Many languages ​​allow only integers to the index values, although it is often possible to build their own data types to avoid this restriction if necessary. Other two -dimensional varieties are optimized for specific purposes, such as storing fields of mainly empty cells or allowing dynamic change in change.