1 IDX
	INDEX SWITCHES-INITIAL SETTING IS 'OFF'
 /A  STATISTICS	  /C DELETE COMMON/TYPE UNUSED /D DEBUG
 /E  80 COLUMN	  /G COMMON VAR/NAME ONLY      /H HELP
 /I  SUPER INDEX  /L LP: MODE(132 COLUMN)      /M APPEND OUTPUT(RSX)
 /N  NO LIST	  /O LIST OPTIONS IN EFFECT    /S ADD TO SUPER INDEX
 /SP SPOOL(RSX)	  /U COMMON/TYPE UNUSED VARS   /X LOCAL VARS ONLY
	HOW USED MNEMONICS
   ARITHMETIC LINE DA DATA	       FH CHARACTER FCN    PA PARAMETER
 =  ASSIGNED VALUE DE DECODE	       FI INTEGER FUNCTION PG PROGRAM
 *  LABEL LOCATION DF DEFINE FILE      FL LOGICAL FUNCTION PR PRINT
 AC ACCEPT	   DI DIMENSION        FN FIND		   RD READ
 AG FCN/SUB ARG	   DP DOUBLE PRECISION FO FORMAT	   RL REAL
 AS ASSIGN LABEL   DO DO	       FR REAL FUNCTION    RW REWIND
 BD BLOCK DATA	   EF ENDFILE	       FU FUNCTION	   SA SAVE
 BS BACKSPACE	   EN ENCODE	       GT GO TO 	   SU SUBR NAME
 BY BYTE 	   EQ EQUIVALENCE      IF IF		   TY TYPE
 CE CLOSE	   EX EXTERNAL	       IN INTEGER	   VI VIRTUAL
 CL CALL 	   EY ENTRY	       IQ INQUIRE	   WR WRITE
 CM COMMON VAR	   FB BYTE FUNCTION    IT INTRINSIC
 CN COMMON NAME	   FC COMPLEX FUNCTION LG LOGICAL
 CX COMPLEX	   FD D. P. FCN        OP OPEN