### 6.2.2.1 Logical and Numeric Functions

The FUNCTION statement takes the following form:

    [typ] FUNCTION nam [*m] [([p [,p] . . . ])]

typ
  Is one of the logical or numeric data type specifiers. See Section 4.5.1 for a list of these specifiers.
nam
  Is the symbolic name of the function.
m
  Is an unsigned, nonzero integer constant specifying the length of the data type. It must be one of the valid length specifiers for the data type given by typ.
p
  Is a dummy argument.

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