HP 33s User Manual
Page 333
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More about Solving
D–9
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:
| H
Selects Equation mode.
L
X
2
6
z L
X
13
%:. º%-
Enters the equation.
|
/
/
Checksum and length.
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