GLOSSARY

• assignment : A statement that assigns a value to a variable.
• concatenate : To join two operands end to end.
• comment : 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.
• evaluate : To simplify an expression by performing the operations in order to yield a single value.
• expression : A combination of variables, operators, and values that represents a single result value.
• floating point : A type that represents numbers with fractional parts.
• integer : A type that represents whole numbers.
• keyword : 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.
• mnemonic : A memory aid. We often give variables mnemonic names to help us remember what is stored in the variable.
• modulus operator : An operator, denoted with a percent sign (%), that works on integers and yields the remainder when one number is divided by another.
• operand : One of the values on which an operator operates.
• operator : A special symbol that represents a simple computation like addition, multiplication, or string concatenation.
• rules of precedence : The set of rules governing the order in which expressions involving multiple operators and operands are evaluated.
• statement : A section of code that represents a command or action. So far, the statements we have seen are assignments and print expression statement.
• string : A type that represents sequences of characters.
• type : A category of values. The types we have seen so far are integers (type int), floating-point numbers (type float), and strings (type str).
• value : One of the basic units of data, like a number or string, that a program manipulates.
• variable : A name that refers to a value.