Casio fx-4200P - Using the Formula Storage Function; Editing Stored Formulas

Example | Enter and execute two formulas with variables.
Enter the formulas.
Hime 3D Ga)
Execute the first formula.
Exe] B?
Enter values for the variables. = =
36
&@)
7
(After approx. 0.5 seconds)
om Po)
46656.
Execute the next formula. BD
&) 216.
13/Using the Formula Storage Function
Your calculator is capable of storage of one formula, up to 63 steps long. The formula
itself, as well as its mode (COMP, BASE-N, LR, SD) are stored, so any time you need
it, you simply go to the proper mode, recall the formula, and press &} to execute it. The
following keys are used with the formula storage function.
Gar} [IN] — Stores displayed formula
(i) —- Recalls stored formula
Example | Store the following formula, and execute it.
Y=X?43X~12
Enter the formula.
Gr hw) 0) ie ES 3 eX)
G12
a
Y¥=X?4+3X-12_
Store the formula.
Ga in)
a
Y=X?+3X-12
Clear the calculator. B
eS
Recall the formula.
(au) Y=X?+3X-—12_
Execute the formuia.
Gy) X?
Assign values to the variables. a
7) ye
(After approx. 0.5 seconds)
@
58.
After
you
recall
a
formula
from
memory,
you
can
edit
it
as
you
wish.
Edit
the
stored
formula
to
Y
=X?
+5X
-
12.
Recall the formula.
;
Y=X?+3X~—12_
Y=X?+3X-12
Make the change.
a
5
Y=X?+5X-12
Store the new formula (if you wish).
a
fea
(3
[vexr+s—12
*To
clear
the
contents
of
the
formula
memory,
press
EB&A)
iq).
Move
the
cursor
to
the
location
of
the
change.
®