Functions
A function is a built-in algorithm that takes zero or more comma-separated arguments and
returns a (possibly NULL
) result.
- General Expressions
- The number and type of the arguments are specific to each function and are described in the
following sections for each function. In general, the arguments to a function can be any valid
expression, including another function
call.
[[function_name (arg1, arg2, ..., argN )]]
Elements
Elements | Description |
---|---|
function_name
|
Function names begin with a letter and continue with any alphanumeric character or underscore. |
argX
|
Any valid expression. Must match the type that is needed by the function. |