HP 48G Series User Manual

Lesson 9: Arithmetic with Symbols
Arithmetic using symbolic variables is very much like arithmetic using
numbers. You can make symbolic calculations on the stack the same
way you make numeric calculations—except you use algebraic objects
(and tick-mark delimiters) instead of just numbers.
—axr
Example: Use symbolic math to create the equation y = 1 —e¢
Step 1: Enter y and the number 1.
CLEAR) :
O@@Y ETE | EER) |
Step 2: Enter the argument —az.
DOPE ®D@X
: = L
THATIEHAT] *@ [30m] | [APPLY]
Step 3: Calculate e=9%,
J: 1
ct 1
1: ERP -a%w)
FETT EE NE El I CT
Step 4: Subtract to calculate 1 — e=%%.
(3) 2 1,1!
I: 1-ERP (=a)
[+HAT[4HAT] #0 [*#@w] | [RPPLY|
Step 5: Form an equation from the two expressions.
&=)
2
1: 'y=1-ExP(-a%u)’
ETEETL EE ETT EO CT
Arithmetic 3-9

HP 48G Series Specifications

General

Model	HP 48G Series
Type	Graphing Calculator
Display Type	LCD
Display Size	131x64 pixels
Programming Language	RPL (Reverse Polish Lisp)
Memory	32 KB RAM
Processor	Saturn
Power Supply	3x AAA batteries
Connectivity	Infrared (IR)