HP35A/21 D.MS<>Decimal degrees routines  Printable Version + HP Forums (https://archived.hpcalc.org/museumforum) + Forum: HP Museum Forums (https://archived.hpcalc.org/museumforum/forum1.html) + Forum: Old HP Forum Archives (https://archived.hpcalc.org/museumforum/forum2.html) + Thread: HP35A/21 D.MS<>Decimal degrees routines (/thread215871.html) 
HP35A/21 D.MS<>Decimal degrees routines  Matt Agajanian  03282012 Hello all, In that the HP21 (Woodstock) and HP35 (Classic) do not have conversions to and from degrees to degrees/minutes/seconds, has anyone devised a method to convert the decimal degree value to degreesminutesseconds? Please let me know.
Thanks Edited: 28 Mar 2012, 8:50 p.m.
Re: HP35A/21 D.MS<>Decimal degrees routines  Eric Smith  03282012 Not anything automatic. You can obviously do it by working through the calculations manually.
Re: HP35A/21 D.MS<>Decimal degrees routines  Gerson W. Barbosa  03282012 From HewlettPackard's HP35 MATH PAC, available in the HP Museum DVD 1, Calculator Manuals:
Degrees, minutes and seconds to decimal degrees
Re: HP35A/21 D.MS<>Decimal degrees routines  Paul Dale  03282012 Quote:LINE DATA OPERATIONS DISPLAY REMARKS Interesting, using the single storage register and saving no keystrokes in doing so.... Likewise for the reverse conversion.  Pauli
Edited: 28 Mar 2012, 10:54 p.m.
Re: HP35A/21 D.MS<>Decimal degrees routines  dbatiz  03292012 There was a tread not too long ago where somebody posted equations that accomplish this. He made his posting as a guessing game, something about "Try to identify these" or something like that. I did a quick search, but came up empty handed. Does this ring any bells? Very respectfully,
David
Re: HP35A/21 D.MS<>Decimal degrees routines  Gerson W. Barbosa  03292012 Here it is: Do you know these 2 functions ? Regards, Gerson.
Re: HP35A/21 D.MS<>Decimal degrees routines  Gerson W. Barbosa  03292012 Quote: ...unless more than one conversion is performed, but then the instructions should be updated:
LINE DATA OPERATIONS DISPLAY REMARKS
Gerson. Edited: 29 Mar 2012, 7:52 a.m.
Re: HP35A/21 D.MS<>Decimal degrees routines  Marcus von Cube, Germany  03292012 RCL should make ENTER^ superfluous.
Re: HP35A/21 D.MS<>Decimal degrees routines  Matt Agajanian  03292012 Hello all. Fantastic job on the D.MS<>D.DDD conversion routines. I tried developing some algorithms last night. In comparison, yours were quite streamlined.
Re: HP35A/21 D.MS<>Decimal degrees routines  Gerson W. Barbosa  03292012 Right you are! This means more keystroke saving on multiple conversions. I guess surveyors appreciated the successor of the HP35, the HP45, when it was released. Edited: 29 Mar 2012, 2:12 p.m.
