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%%HP: T(3)A(R)F(.); @ HP49 ONLY! - downloadable file (use Kermit)@ Programs ENG-> and ENG<- accept REAL numbers (no units),@ changing the exponent by 3 each time (displaying as a string);@ use NORM to change string back to the original real number:\<< { * - } ENGX \>> 'ENG\->' STO\<< { / + } ENGX \>> 'ENG\<-' STO\<< STR\-> \>> 'NORM' STO@ Subroutine (not for direct use):\<< LIST\-> DROP RCLF \-> a b f \<< { { 514. DOERR } { 3. EXP ENG \->STR { DROP DROP } ENGX } { DUP "E" POS DUP2 1. + OVER SIZE SUB UNROT 1. - 1. SWAP SUB DUP STR\-> 3. ALOG a EVAL STD \->STR DUP "E" POS { DROP SWAP } { SWAP DROP SWAP STR\-> 3. b EVAL \->STR 1. OVER SIZE 1. - SUB } IFTE "E" SWAP + + } } { 0. 2. } 3. PICK TYPE POS 1. + GET EVAL f STOF \>> \>> 'ENGX' STO@ Programs U-> and U<- accept UNIT objects only,@ transforming them to other equivalents@ using different unit prefixes, e.g. 123.4_m = .1234_km\<< 0. UU \>> 'U\->' STO\<< 1. UU \>> 'U\<-' STO@ Subroutine (not for direct use):\<< \<< "yzafpn\Gmm.kMGTPEZYYc.d.Dkhk" "YZEPTGMk.m\Gmnpfazyyh.D.dmcm" IFTE DUP ROT POS 1. + DUP SUB \>> \-> d p \<< DUP TYPE 13. \=/ { 514. DOERR } IFT DUP :INNERCOMP: #54AFh SYSEVAL :{}N: #5459h SYSEVAL DUP 2. GET "1" SAME 3. 2. IFTE DUP2 GET IF DUP TYPE 24. == THEN :CHR>$: #37AA5h SYSEVAL d p EVAL NUM IF DUP 46. \=/ THEN :COERCE: #262F1h SYSEVAL :#>CHR: #5A75h SYSEVAL 1. \->LIST REPL ELSE DROP DUP2 1. SWAP 1. - SUB UNROT DUP2 1. + GET UNROT 3. + OVER SIZE SUB + + END ELSE UNROT DUP2 1. SWAP 1. - SUB UNROT 1. + OVER SIZE SUB ROT "." d p EVAL NUM :COERCE: #262F1h SYSEVAL :#>CHR: #5A75h SYSEVAL SWAP :umP: #2D76Dh SYSEVAL 3. \->LIST SWAP + + END :INNERCOMP: #54AFh SYSEVAL :EXTN: #5481h SYSEVAL CONVERT \>> \>> 'UU' STO{ ENG\-> ENG\<- NORM ENGX U\-> U\<- UU } ORDER@ End of HP49 downloadable file (EVALuate it to install programs)
0.01 'ENG\->' 10.E-3 'ENG\->' 10000.E-6 'ENG\->' 10000000.E-9 'ENG\->' 10000000000.E-120.01 'ENG\<-' 10.E-3 'ENG\<-' .01E0 'ENG\<-' .00001E3 'ENG\<-' .00000001E6 'ENG\<-' .00000000001E95000.E-3 'NORM' --> 5.
'1_m' 'U\->' '1000._mm' 'U\->' '1000000._\Gmm' ('\Gm' = 'μ')'1_m' 'U\<-' '.001_km' 'U\<-' '.000001_Mm'
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Topic: CASIO-like ENG key for HP 50g (Read 3391 times)
