Hints For Responding To Prompts - HP -22S Owner's Manual

Example: Evaluating an Expression. Evaluate the expression:
e-r+y+z
for
x
=
1, Y
=
2, and z
=
2.5.
Keys: Display: Description:
.1
EQUATIONS I
If
necessary, press [!] until the HP-22S displays
TYPE NEW EQN.
Then:
~ISTOI
X
81sTOI y
Types the expression.
8 ISTOI
Z IT]
EXP (X +Y +Z)
I EVALI
X?value
Prompts for X.
1 I INPUT I
Y?value
Stores X, prompts for
Y.
211NPUTI
Z?value
Stores Y, prompts for
Z.
2.5 I INPUT I
EXPR=244.6919
Evaluates the
expression.
Hints for Responding to Prompts
Calculating Input Values. You can do calculations in response to
prompts. For example, in response to the prompt
A?value,
pressing 7
8 4
[K]
I INPUT I
stores 9
in A.
Similarly, in response to
B?value,
press-
ing
5.08.1
%CHG II INPUT I
stores 60 in B. (Notice
that.O
is used
to display the colon to separate the two arguments of the percent
change function.)
76 6: Evaluating and Solving Equations