Chapter 6 RAPID!
Tables
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COS Returns the cosine of a numeric expression.
CURDIR$ Returns the currently selected directory.
DATE$ Returns a string, containing the system date.
DIM Declares local variables.
DIR$ Function to read out the entries in a directory.
DO ... LOOP Loop with condition.
END Ends the program.
EOF Checks whether the end of a file was reached.
ERASE Releases allocated memory of a variable.
ERF$ Returns the name of program file, in which the last
error occurred.
ERL Gives the program line, in which the last error
occurred.
ERR Returns the error code of the most recent error.
ERROR Creates an error with a specified error number.
EVENTWAIT,
EVENTSTATUS
Waits for an event and returns the event code.
FOR ... NEXT Loop with a specified number of cycles.
FREEFILE Returns the subsequent free file handle.
FUNCTION Declares a function.
GLOBAL Declares global variables.
GOSUB ...
RETURN
Branches to the specified label and returns at the
next
RETURN command.
GOTO Branches to the specified label.
HEX Converts a hexadecimal representation of a numeric
expression into its decimal equivalent.
HEX$ Transforms a numeric expression into its hexadeci-
mal representation.
IF ... THEN Checks a condition.
INKEY Checks whether a softkey was pushed and returns
its code.
INPUT Reads data from an open file or from an open port
or waits for a user entry and stores the value
entered.
INSTR Searches for the occurrence of a specific sequence
of characters within a string.
KILL Deletes a file.
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