variables - ορισμός. Τι είναι το variables
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Τι (ποιος) είναι variables - ορισμός

WIKIMEDIA DISAMBIGUATION PAGE
Variables; Variable notation; Variable (disambiguation)

variables         
the region of light, variable winds to the north of the NE trade winds or (in the southern hemisphere) between the SE trade winds and the westerlies.
variable         
<programming> (Sometimes "var" /veir/ or /var/) A named memory location in which a program can store intermediate results and from which it can read it them. Each programming language has different rules about how variables can be named, typed, and used. Typically, a value is "assigned" to a variable in an assignment statement. The value is obtained by evaluating an expression and then stored in the variable. For example, the assignment x = y + 1 means "add one to y and store the result in x". This may look like a mathematical equation but the mathematical equality is only true in the program until the value of x or y changes. Furthermore, statements like x = x + 1 are common. This means "add one to x", which only makes sense as a state changing operation, not as a mathematical equality. The simplest form of variable corresponds to a single-word of memory or a CPU register and an assignment to a load or store machine code operation. A variable is usually defined to have a type, which never changes, and which defines the set of values the variable can hold. A type may specify a single ("atomic") value or a collection ("aggregate") of values of the same or different types. A common aggregate type is the array - a set of values, one of which can be selected by supplying a numerical index. Languages may be untyped, weakly typed, strongly typed, or some combination. Object-oriented programming languages extend this to object types or classes. A variable's scope is the region of the program source within which it represents a certain thing. Scoping rules are also highly language dependent but most serious languages support both local variables and global variables. Subroutine and function formal arguments are special variables which are set automatically by the language runtime on entry to the subroutine. In a functional programming language, a variable's value never changes and change of state is handled as recursion over lists of values. (2004-11-16)
variable         
n. (math.) a dependent; independent; random variable

Βικιπαίδεια

Variable

Variable may refer to:

  • Variable (computer science), a symbolic name associated with a value and whose associated value may be changed
  • Variable (mathematics), a symbol that represents a quantity in a mathematical expression, as used in many sciences
  • Variable (research), a logical set of attributes
  • Variable star, a type of astronomical star
  • "The Variable", an episode of the television series Lost
Παραδείγματα από το σώμα κειμένου για variables
1. Well, it will probably take more variables than we could imagine and the most important of all these variables would be leadership, of course.
2. Others maintain that variables in sizes serve a practical purpose.
3. "There are factors and variables that may make that difficult.
4. With so many variables, anyone‘s head might be left spinning.
5. Any results would be fatally skewed by those other variables.