HP 35s HP 35s scientific calculator - User Guide - Page 333
Selects Equation mode
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Watch what happens when you use negative values for guesses: Keys: Display: Description: X 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: X4 X First attempt to find a positive root: Keys: Display: X X Description: Selects Equation mode. Enters the equation. Checksum and length. Cancels Equation mode. Description: 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
More about Solving
D-11
Watch what happens when you use negative values for guesses:
Example:
Find the root of the equation.
Enter the equation as an expression:
First attempt to find a positive root:
Keys:
Display:
Description:
X
Your negative guesses for the root.
Selects Equation mode; displays
the equation.
X
Solves for
X
; displays the result.
Keys:
Display:
Description:
Selects Equation mode.
X
4
X
ÕÕ
¨
Enters the equation.
Checksum and length.
Cancels Equation mode.
Keys:
Display:
Description:
X
_
Your positive guesses for the
root.
¨
Selects Equation mode;
displays the left end of the
equation.
X
Calculates the root using
guesses 0 and 10.
0
5
.
0
0.3)]
(x
[x
=
−
+
÷