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ERR/ERL
Function Provides the line number in which an error occurs (ERL) and the error code (ERR).
Format ERR
ERL
Explanation The system variables, ERR and ERL, are used in the IF ~ THEN statement, and used
for branching to error processes. (For details, refer to “ON ERROR”.)
Immediately after BASIC is started up, ERL is 0. A numeric value for the variable
cannot be assigned to ERR and ERL.