HP 17bII Owner's Manual page 165

Since a Solver equation appears all on one line, you must group the
numerator and denominator separately by using parentheses, such as
Order of Calculations. Operations occur from left to right but do:
Exponentiation first. For example,        is interpreted as A ×
3
B = C. B is raised to the 3rd power and then multiplied by A. To
raise A × B to the 3rd power, write the equation as         .
Multiplication and division before addition and subtraction. For
example,         is interpreted as A + ( B/C ) = 12. To divide
the sum of A + B by C, enter the equation as  .
Parentheses. Parentheses override the above rules of priority. When in
doubt, use parentheses. It never hurts to use parentheses─even multiple
parentheses. (Do not use brackets or braces.)
For example, earlier (page 154) we used the equation
Next Forecast＝Old Forecast +
which was entered into the calculator as
                           .
A
would be entered as        
×
B C
×
B C
+
A
×
D E
File name : English-M02-1-040308(Print).doc
+ +
a b c
− ×
d e f
               



could be entered as            
Print data : 2004/3/9
( )
+ + ×
A B C
% % % Old Forecast
100
12: The Equation Solver 165
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