To enter a value for a known variable, To solve for an unknown variable, Interpreting results – HP 48g Graphing Calculator User Manual
Page 209: To interpret the comput ilt, Interpreting results -3
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and
B
contains the expression
D, E,
and
C.
;E) ' , you will see labels for el,
Note
For equations that use a
placeholder
variable—
such as an integral, summation, or derivative, the
placeholder variable will have a label displayed.
However, you will
not
be able to solve for a
placeholder variable.
If one or more of the variables does not already exist, it will be created
and added to the current directory when you solve the equation the
first time.
To enter a value for a
known
variable:
1, Move the highlight to the field labeled with the name of the known
variable,
2. Type in the value and press (ENTER),
To
Store an estimated value for an unknown variable:
1, Move t.he highlight to the field labeled with the name of the
unknowm variable.
2. Type in the guess value and press f ENTER),
18
To solve for an unknown variable:
1, Move the highlight to the field labeled with the name of the
unknown variable,
2, Press S O L V E . The result wull be displayed in the field and a
labeled copy put on the stack.
Interpreting Results
The SOLVE application returns a message describing the result of the
root-finding process. You can use this message and other information
to judge whether the result is a root of your equation.
To
interpret
the comput
ilt:
After the result has been computed, press I N F O . Press
to clear it when you’ve finished viewing it.
Solving Equations 18-3