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HP 9g Converting Angles and Times
Example 5: Convert an angle of 2.3714 degrees into DMS.
Solution:
Assuming that the current angle is still set to degrees, press:
2.3714~z‡=
Answer:
2º 22' 17.04'' Note that seconds are expressed in decimal format.
Example 6: Convert an angle of 0.43 radians into DMS.
Solution:
You don't have to convert 0.43 radians into decimal degrees first. Instead, use the
.43~z†††=~z‡==
Answer:
24º 38' 13.9''
Example 7: Convert an angle of 118º 27' 59'' into decimal degrees.
Solution:
On the HP 9g there is no specific function to convert DMS into decimal degrees, because such conversion
is done automatically when processing the entry line, i.e. after pressing the = key. The º, ' and '' symbols
are in the DMS menu:
118~z=27~z†=59~z††=
The result line displays the angle in decimal degrees.
Answer:
118.4663889º'
Example 8: Add 5 hours 33 minutes to 3 hours 58 minutes.
Solution:
Remember that time measurements can be calculated using angle functions. This calculation can be done
(
this way:
5
N5~z=33~z†=+3~z=58~z†=†~
z‡==
Answer:
9 hours and 31 minutes.
Notes. All functions in the DMS menu can be inserted in a program, but the DRG menu is not shown in Program Edit
mode. This means that a program cannot change the active angle unit, which has to be set before running the program.
Neither the DRG menu nor the DMS menu can be displayed in Base-N mode.
Here's a trick that might be helpful: you can insert more than one
the current angle mode. For example, in grad mode
a program. It does not work for º because degrees are parsed differently because of the DMS format.
hp calculators
+
º
'
º
) '
DMS:
33
3
58
g
r
or
(or both) in a calculation. Its action depends on
rrr
A ( +
) B
is the same as
- 4 -
DMS function directly:
+
π
A (
B
)(
/
)
3
but saves five steps in
200
HP 9g Converting Angles and Times - Version 1.0
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