Gosub - Casio FX-730P Owner's Manual

GOSUB
{
Function:
Branched line No. }
Line No.
#program area No.
Number 0 to 9
Performs a branching to a specified subroutine.
Parameter:
Line No. :
Program area No. :
Explanation:
1
to 9999 .
0 to 9.
6-2 Program Commands
®
1) Performs a branching to a subroutine. A return from this subroutine is per-
formed by executing RETURN .
2) To make a subroutine inside a subroutine is called nesting which can be
performed with up to 8 levels.
3) Return to the statement next to the GOSUB statement is performed by
RETURN .
4) Return to the main routine cannot be performed by an IF statement or
GOTO statement. Therefore, be sure to perform return by a RETURN state-
ment.
5) When the branched line No . does not exist, an error (Error 4) occurs.
*A numeric expression can also be used for a branched line number and a pro-
gram area number.
Example:
10 PRINT "MAIN 10"
20 GOSUB 100
30 PRINT ''MAIN 30''
40
END
100 PRINT "SUB 100"
110 GOSUB 200
120 RETURN
200 PRINT ''SUB 200"
210 RETURN
121