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More about Solving D–11
)
Previous estimate is the same.
|
)
f
(x) = 0
Watch what happens when you use negative values for guesses:
Keys: Display: Description:
1
^I
X
.)
Your negative guesses for the
root.
2
^|H
.#1%2
Selects Equation mode; displays
the equation.
X
%/
)
Solves for X; displays the result.
Example: Find the root of the equation.
05.00.3)](x[x =+÷
Enter the equation as an expression:
Keys: Display: Description:
|H
Selects Equation mode.
#L
X
q|
]L
X

3
|`|`
5
!1%ª1%-)22
Enters the equation.
|
/
/
Checksum and length.
Cancels Equation mode.
First attempt to find a positive root:
Keys: Display: Description:
0
I
X
10

_
Your positive guesses for the
root.
|H
!1%ª1%-)22
Selects Equation mode; displays
the left end of the equation.
X
%/
)
Calculates the root using
guesses 0 and 10.