More about Solving
D–9
File name 33s-English-Manual-040130-Publication(Edition 2).doc Page : 388
Printed Date : 2004/1/30 Size : 13.7 x 21.2 cm
f (x)
x
a
f (x)
x
b
f (x)
x
c
Case Where No Root Is Found
Example: A Relative Minimum.
Calculate the root of this parabolic equation:
x
2
– 6x + 13 = 0.
It has a minimum at
x = 3.
Enter the equation as an expression:
Keys: Display: Description:
º
d
Selects Equation mode.
h
X
)
2
Ã
6
¸
h
X
Ù
13
Ï
Enters the equation.
º
Î
Checksum and length.