HP 33s Scientific manual ⎟ x + 0.3 − 0.5 =, #LX q LX ›3 `` , 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	^IX	.)
2	^H	.#1%2
X		%/
		)

Your negative guesses for the root.

Selects Equation mode; displays the equation.

Solves for X; displays the result.

Example: Find the root of the equation.

[x ⎟ (x + 0.3)] − 0.5 = 0

Enter the equation as an expression:

Keys:Display:Description:

H #LX q ]LX ›3 ``…

5 ‘



‡

	Selects Equation mode.
	Enters the equation.


!1%ª1%-)22
/	Checksum and length.
/
	Cancels Equation mode.

First attempt to find a positive root:

Keys:Display:Description:

0 IX	
10	_
H	!1%ª1%-)22
X	%/
	)

Your positive guesses for the root.

Selects Equation mode; displays the left end of the equation. Calculates the root using guesses 0 and 10.

More about Solving D–11