täisarvulik

Täisarvulik is an Estonian term that translates to "integer" in English. It refers to a whole number, meaning a number that does not have a fractional or decimal component. This includes positive whole numbers (1, 2, 3, ...), negative whole numbers (-1, -2, -3, ...), and zero (0).

In mathematics, the set of all integers is often denoted by the symbol Z. The properties of integers are fundamental to arithmetic and number theory. For example, the sum, difference, and product of any two integers always result in another integer. Division, however, does not always produce an integer; for instance, 5 divided by 2 equals 2.5, which is not an integer.

The concept of täisarvulik is crucial in various fields of computer science and programming. Many programming languages have specific data types to represent integers, such as 'int'. These types are used for counting, indexing, and performing calculations where only whole numbers are meaningful. Understanding the distinction between integers and other number types, like floating-point numbers (which can have decimal components), is essential for accurate programming and data handling.