HP 50g HMS problem

04072023, 05:34 PM
Post: #1




HP 50g HMS problem
Hello everyone,
lets say I have an angle gama = 1.96834347921E7. I used >HMS to convert it from decimal form to HMS form. The result was: 7.08603652516E8 . That is the wrong result because in excel when I converted the same angle using DEGREES(), the result was 1.1278E5 . Can you please help me to solve this problem? Thank you. 

04072023, 10:31 PM
(This post was last modified: 04072023 11:05 PM by Gil.)
Post: #2




RE: HP 50g HMS problem
The given result by HP seems to me perfectly correct
(and Excel too). 1 degree (1 hour) —> 3600 s Then, if you have in (decimal) degrees (d.dddddd) 1.96834347921E7 you have to multiply it by 3600 to get the number of s: 1.96834347921E7 × 3600 = 7.08603652516E4 s And your initial value 1.96834347921E7 (in degrees d.dddddd) with —>DMS gives precisely 7.08603652516E8 = 0. 00 0000708603652516, to be read as 0h 00' 0.000708603652516s. However, if your initial angle 1.96834347921E7 is in radian, then the corresponding value in (decimal) degrees is: 1.96834347921E7 × 360/(2×pi) = 1.12777773991E5 (in d. ddddd). Excel given function converts, here, radian (your initial value) to degrees (d.ddddds), whereas HP command —>DMS converts your initial value from d.ddddddd into d.mmsssss. Two different things, all of them correct, depending on your initial input 1.96834347921E7 [ radian] or 1.96834347921E7 [decimal degrees d.ddddddd] Regards 

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