LBL "AOS" CLRG 3 STO 00 10 STO 01 CLST RTN LBL "+" -1.2 GTO 00 LBL "-" -2.2 GTO 00 LBL "*" -3.1 GTO 00 LBL "/" -4.1 GTO 00 LBL "^" 5.1 LBL 00 STO 02 FRC X>0? GTO 11 LBL 09 RCL IND 01 X=0? GTO 10 FRC X Z LASTX XEQ 06 R^ GTO 09 LBL 10 RDN LBL 11 RDN RCL 02 XEQ 07 ISG 00 RTN STO IND 00 RTN LBL "<" 0 LBL 07 ISG 01 RTN STO IND 01 RDN RTN LBL ">" XEQ 08 DSE 01 RTN LBL "=" LBL 08 RCL IND 01 X=0? GTO 13 XEQ 06 GTO 08 LBL 13 RDN RTN LBL 06 DSE 01 X<>Y RCL IND 00 DSE 00 X<>Y XEQ IND Z VIEW X RTN LBL 01 + RTN LBL 02 - RTN LBL 03 * RTN LBL 04 / RTN LBL 05 Y^X RTN