HP 35s Scientific Calculator Manuel d'utilisateur Page 334

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D-12 More about Solving
Now attempt to find a negative root by entering guesses 0 and –10. Notice that the
function is undefined for values of x between 0 and –0.3 since those values
produce a positive denominator but a negative numerator, causing a negative
square root.
Example: A Local "Flat" Region.
Find the root of the function
f(x) = x + 2 if x < –1,
f(x) = 1 for –1 x 1 (a local flat region),
f(x) = –x + 2 if x >1.
In RPN mode, enter the function as the program:
 


 
 
 


 
 

 
Checksum and length: 9412 39
Keys: Display: Description:
X

_

Selects Equation mode; displays
the left end of the equation.
X
   No root found for f(x).
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