Section 2.14 Glossary

Glossary Glossary

Assignment.

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A statement that assigns a value to a variable.

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Concatenate.

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To join two operands end to end.

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Comment.

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Information in a program that is meant for other programmers (or anyone reading the source code) and has no effect on the execution of the program.

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Evaluate.

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To simplify an expression by performing the operations in order to yield a single value.

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Expression.

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A combination of variables, operators, and values that represents a single result value.

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Floating Point.

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A type that represents numbers with fractional parts.

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Integer.

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A type that represents whole numbers.

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Keyword.

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A reserved word that is used by the compiler to parse a program; you cannot use keywords like if, def, and while as variable names.

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Mnemonic.

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A memory aid. We often give variables mnemonic names to help us remember what is stored in the variable.

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Modulus Operator.

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An operator, denoted with a percent sign (%), that works on integers and yields the remainder when one number is divided by another.

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Operand.

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One of the values on which an operator operates.

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Operator.

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A special symbol that represents a simple computation like addition, multiplication, or string concatenation.

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Rules of Precedence.

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The set of rules governing the order in which expressions involving multiple operators and operands are evaluated.

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Statement.

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A section of code that represents a command or action. So far, the statements we have seen are assignments and print expression statement.

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String.

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A type that represents sequences of characters.

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Type.

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A category of values. The types we have seen so far are integers (type int), floating-point numbers (type float), and strings (type str).

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Value.

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One of the basic units of data, like a number or string, that a program manipulates.

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Variable.

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A name that refers to a value.

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