Hp 32SII Manual do Utilizador descarregar pdf (Página 318)

C–4 More about Solving

File name 32sii-Manual-E-0424

Printed Date : 2003/4/24 Size : 17.7 x 25.2 cm

Keys: Display: Description:

{

G



Select Equation mode.

2

_y

K

X

0

3



4

y

K

X

0

2



6

yK

X





8













.º%:-%:.

Enters the equation.

{



/

)

Clecksum and length.





Cancels Equation mode.

Now, salve the equation to find the root:

Keys: Display: Description:

0

H

X 10



_

Initial guesses for the root.

{

G

.º%:-º%:.

Selects Equation mode;

displays the left end of the

equation.

{



X

#

%/)

Solves for X; displays the

result.

9

)

Final two estimates are the

same to four decimal places.

9

.).

f(x) is very small, so the

approximation is a good

root.

Example:

An Equation with Two Roots.

Find the two roots of the parabolic equation:

x

2

+ x – 6 = 0.

Enter the equation as an expression:

1 2 ... 313 314 315 316 317 318 319 320 321 322 323 ... 375 376

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