FORTRAN 77 Language Reference

Formal Arguments

The list of arguments defines the number of formal arguments. The type of these formal arguments is defined by some combination of default, type statements, IMPLICIT statements, and DIMENSION statements.

The number of formal arguments must be the same as the number of actual arguments at the invocation of this function subprogram.

A function can assign values to formal arguments. These values are returned to the calling program when the RETURN or END statements are executed in the function subprogram.