1. Data structure

Function (k19):

f”$ VIDE “: TITRE ♦ “. PROL “: OJB SV K24

|% if the function is interpreted (formula): ♦ “. NOVA “: OJB SV K24

|% if the function is tabulated: /% if constant function or function: ♦ “. VALE “: OJB S V R

/% if tablecloth: ♦ “. PARA “: OJB S V R ♦ “. VALE “: OJB XC V R