HP 33S Owner's Manual

More about Solving
D–7
File name 33s-E-Manual-1008-Publication(1st).doc Page : 386
Printed Date : 2003/10/8 Size : 13.7 x 21.2 cm
Û
X



Finds a root with
g
uesses
0 and 5.
º Î

Shows root, to 11
decimal places.
< º Î

The previous estimate is
slightly bigger.
<

f(x) is relatively large.
Note the difference between the last two estimates, as well as the relatively large
value for f(x). The problem is that there is no value of x for which f(x) equals zero.
However, at x = 1.99999999999, there is a neighboring value of x that yields
ant opposite sign for f(x).
Example: A Pole.
Find the root of the equation
01
6
2
=−
−
x
x
As x approaches
6
, f(x) becomes a very large positive or negative number.
Enter the equation as an expression.
Keys: Display: Description:
º d

Selects Equation mode.
h
X
¯
º
y h
X
)
2
Ã
6
º | Ã
1
Ï





Enters the equation.
º Î


Checksum and length.
Å

Cancels Equation mode.
Now, solve to find the root.
Keys: Display: Description:
2.3
e
X

Your initial guesses for



HP 33S Specifications

General

Type	Scientific
Form factor	Pocket
Product color	Silver
Digits	10 digits
Display number of lines	2 lines
Keyboard type	Alphanumeric
Menus and prompts	Yes

Weight and Dimensions

Dimensions (WxDxH)	157 x 16 x 81 mm