Solved: what is wrong with this LatLong->Distance code? A Trigonometry "feature".

[StephenG1CMZ]

Thank you so much for that insight Guenter - I have only briefly read your answer and need to re-read it more thoroughly.

But if I understand you, these two SIN's give different answers, despite - one would have thought - being the same calculation (my home setting is Radians default).

Code:



 EXPORT HMSBUG()
 BEGIN
  IF SIN(12°30′″)≠SIN(HMS→(12°′30″)) THEN
   PRINT("THAT SEEMS WRONG");
  ELSE
   PRINT("SIN WORKS");
  END;
 END;

My understanding of HMS is that it changed how a value was displayed, whether 12.5 or 12:30 - not that it changed the resulting answers! That is so unexpected to me that I would consider it a bug. (The answers differ completely, not just a rounding of the presentation value).