What section of a Pascal program has the variables?

What section of a Pascal program has the variables?

Section 3.4
Sections 3.2 and 3.3 contain a discussion of the PASCAL PROGRAM and PROCEDURE statements, and how they support software modularity. In Section 3.4, we show how constructs called variables can be used to pass information to and from procedures.

How do you assign variables in Pascal?

This is called assignment. To assign a value to a variable, follow this syntax: variable_name := expression; Note that unlike other languages, whose assignment operator is just an equals sign, Pascal uses a colon followed by an equals sign, similarly to how it’s done in most computer algebra systems.

What is character in Pascal?

A char stores a single character and is currently one byte, and AnsiChar is an alias for it. However, in the future, char may become the same as a WideChar. For now, byte and char are almost identical – one byte (8-bits) in size.

How do you declare a constant variable in Pascal?

Pascal also allows the declaration of constants to name values that do not change during program execution. To declare a constant you don’t need to specify a data type, but only assign an initial value. The compiler will look at the value and automatically use its proper data type.

What is := in Pascal?

Pascal – Assignment: := The assignment operator is used to assign a value to a variable. it can be used for any data type with the only condition that the first parameter (left side) must be a value receiver, for example a variable.

What is constant in Pascal?

A constant is an entity that remains unchanged during program execution. Pascal allows only constants of the following types to be declared − Ordinal types. Set types. Pointer types (but the only allowed value is Nil).

What is real in Pascal?

Real values are stored inside the computer similarly to scientific notation, with a mantissa and exponent, with some complications. In Pascal, you can express real values in your code in either fixed-point notation or in scientific notation, with the character E separating the mantissa from the exponent.

What is Pascal used to measure?

The pascal (Pa) is the unit of pressure or stress in the International System of Units (SI). It is named after the scientist and mathematician Blaise Pascal. One pascal is equivalent to 1 newton (N) of force applied over an area of 1 square meter (m2).

What are Pascal identifiers?

Character set and Identifiers in Pascal The entities in a Pascal program like variables and constants, types, functions, procedures and records, etc., have a name or identifier. An identifier is a sequence of letters and digits, beginning with a letter. Special symbols and blanks must not be used in an identifier.

What is variable data type?

Variable Types A variable’s type determines the values that the variable can have and the operations that can be performed on it. For example, the declaration int count declares that count is an integer ( int ).

Which variables are measured?

dependent variable
The dependent variable is the variable that is being measured or tested in an experiment.