Specifications

Chapter 14. Statement Reference
198
Syntax:
Syntax 1 (Defining a numeric function):
DEF FNfunctionname[(dummyparameter[,dummyparameter
...])]
Syntax 2 (Defining a string function):
DEF FNfunctionname[(dummyparameter [,dummyparame-
ter...])] [[stringlength]]
Syntax 3 (Exiting from the function block prematurely):
EXIT DEF
Syntax 4 (Ending the function block):
END DEF
Syntax 5 (Assigning a returned value):
FNfunctionname = generalexpression
Syntax 6 (Calling a function):
FNfunctionname[(realparameter[,realparameter ...])]
Parameter:
Same as for DEF FN (Single-line form).
DEFine FuNction...END DEFine User-defined function definition statement
DEF FN...END DEF (Block form)
Names and defines a user-defined function.