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HP 9g Converting Angles and Times
The entry line contains 25º. When this is evaluated by pressing =, the HP 9g will convert 25º into the
current angle unit, i.e. radians.
Answer:
0.436332313 radians.
Example 2: Convert 25º into grads.
Solution:
First of all, we have to set the angle mode to the units into which we want to convert, i.e. grads. Press
X†=
Note that the entry line now contains 25º again—the last calculation entered or the one being edited— so
we just have to press = to do the conversion.
Answer:
27.77777778 grads or
Example 3: Convert an angle of
Solution:
Since the target unit is degrees, set the angle mode to degrees by pressing: X†=. The entry line still
contains 25º from previous examples. Press : to clear it. Now enter
DMS menu to indicate that this quantity is expressed in radians:
N~Õ/3†~z†††=
The entry line now reads
precedence over the division function. Press = and the result line will contain the same value in decimal
degrees:
~z„==
Answer:
120º
Example 4: Add 120º to
Solution:
120º is already stored in ANS from the previous example, so press:
+4.1~z†††==
It returns the sum expressed in decimal degrees. To express this number in the DMS format, use the
DMS function of the DMS menu. You don't need to reenter its argument, since it is taken from the ANS
variable, just press:
~z‡==
Answer:
354.912696 or 354º 54' 46''
hp calculators
grads (press ~n= to convert the result into a mixed number).
7
27
9
2π
radians into decimal degrees.
3
r
(
)
. Parentheses are necessary since the º, ', '', and functions take
2π
3
r
.1
and express the result in both decimal degrees and in the DMS format.
4
- 3 -
and add a small r from the
2π
3
r
g
HP 9g Converting Angles and Times - Version 1.0
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