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HP 35s User Manual Page 326

Scientific calculator.
Hide thumbs

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Keys:

X

X
X


Now, solve the equation to find the root:
Keys:
X

X
Example:
An Equation with Two Roots.
Find the two roots of the parabolic equation:
Enter the equation as an expression:
D-4
More about Solving
Display:



Display:
_






2
x
+ x – 6 = 0.
Description:
Select Equation mode.
Enters the equation.
Checksum and length.
Cancels Equation mode.
Description:
Initial guesses for the root.
Selects Equation mode; displays
the left end of the equation.
Solves for X; displays the result.
Final two estimates are the same
to four decimal places.
f(x) is very small, so the
approximation is a good root.

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