Question

3. The elements whose value remains unchanged during the course of program is called
what??​

Answer 1

Answer:

In computer programming, a variable or scalar is a storage location (identified by a memory address) paired with an associated symbolic name, which contains some known or unknown quantity of information referred to as a value. The variable name is the usual way to reference the stored value, in addition to referring to the variable itself, depending on the context. This separation of name and content allows the name to be used independently of the exact information it represents. The identifier in computer source code can be bound to a value during run time, and the value of the variable may thus change during the course of program execution.[1][2][3][4]

Variables in programming may not directly correspond to the concept of variables in mathematics. The latter is abstract, having no reference to a physical object such as storage location. The value of a computing variable is not necessarily part of an equation or formula as in mathematics. Variables in computer programming are frequently given long names to make them relatively descriptive of their use, whereas variables in mathematics often have terse, one- or two-character names for brevity in transcription and manipulation.

A variable's storage location may be referenced by several different identifiers, a situation known as aliasing. Assigning a value to the variable using one of the identifiers will change the value that can be accessed through the other identifiers.

Compilers have to replace variables' symbolic names with the actual locations of the data. While a variable's name, type, and location often remain fixed, the data stored in the location may be changed during program execution.

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Answer 2

The Answer is:

The elements whose value remains unchanged during the course of program is called Constants.

• A constant in computer coding is indeed a variable which should not be changed by the program while it is running normally.
• A constant was considered to also be "named" once it is connected to something like an identifier.
• Unlike a variable, which is also an "identifier" with such a variable that might vary throughout normal system operation, a variable is not fixed.
• Coders and compilers can benefit from constants: It function as just a sort of self code to developers and enable thinking on accuracy, but for compilers, it provide collate and operated checks to make sure certain consistency assumption were upheld and permit or make certain compiler improvements simpler.
• The idea of something like a constant has several particular realizations, each having minute variations which are frequently disregarded. A most important ones are permanent entities, constant classes, executable constants, and operated constants.

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