HP 49g Graphing Calculator - Manual (Page 45)

Using calculated values as input
With an input form displayed, you can perform a calculation and place the
result of the calculation directly into a field.
1. Move the cursor to the field whose value you wish to calculate.
2. Press
CALC.
The
caia
;
command is on the second page of the fimction key menu.
3. Perform the desired calculation.
4. If it is not already a real number, convert the result to a real luunber by
pressing ©¡33$.
5. Press
OK
to return to the input form. The result to the calculation will
be in the field you highlighted at step 1.
Closing an input form
An input form might be used to make global changes—for example,
changing the date or time—or to set up the parameters for some other
operation (such as setting the coordinates for plotting a particular
equation).
If your input form will change global settings, press
OK.
This saves your
settings and closes the form.
If your input fonn is designed to record the parameters for some further
operation, a menu key is displayed representing that fm-ther operation.
(For example, the input forms for plotting a graph will display a menu
item labelled
draw
.
Pressing the corresponding fimction key causes the
equations specified to be drawn according to the parameters specified on
the input forms. (See chapter 4, “Plotting graphs” for more information on
plotting.)
To close an input fomi and discard the values you have entered, press
iCANCEp.
Basic operation Page 2-17