HP 50g User Manual page 250

Let's try a simple solution of Case I, using a = 5, b = 3, c = 5. Use the
following entries:
5[ a ]
3[ b ]
5[ c ]
To solve for the angles use:
]
„[
Note: If you get a value that is larger than 180, try the following:
10[
„ [ ]
Next, we calculate the other two values:
„ [ ]
„ [ ]
You should have the values of the three angles listed in stack levels 3 through
1. Press + twice to check that they add indeed to 180
Press L to move to the next variables menu. To calculate the area use: „[
A ]. The calculator first solves for all the other variables, and then finds the
area as A:
7.15454401063.
Note: When a solution is found, the calculator reports the conditions for the
solution as either Zero, or
calculator has difficulties finding a solution.
a:5 is listed in the top left corner of the display.
b:3 is listed in the top left corner of the display.
c:5 is listed in the top left corner of the display.
Calculator reports
.
72.5423968763
] Re-initialize a to a smaller value.
Calculator reports
The result is :
The result is :
Sign Reversal
and shows the result
Solving for
Solving for
34.9152062474.
72.5423968763
. Other messages may occur if the
.
o
.
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