Hp 33s User Manual Page 331

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More about Solving D–7
X
#
%/
)
Finds a root with
g
uesses 0 and
5.
|
)
Shows root, to 11 decimal
places.
|
)
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:
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:
|H
Selects Equation mode.
L
X
q
|]L
X
2
6
|`
1
%ª1%:.2.
Enters the equation.
|
/
/
Checksum and length.
Cancels Equation mode.
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