The type of argument needed is generally decided by the data type in the result. Functions which return a string value as their result are identified by having a dollar sign ($) as the last character of the keyword. In some cases string functions contain one or more numeric argument. Numeric functions will convert between integer and floating-point format as needed. In the descriptions that follow, the data type of the value returned is shown with each function name. The types of arguments are also given with the statement format.

Table 2-1. COMMODORE 64 BASIC KEYWORDS