Figure B-2. Cases Where a Root is Found
To obtain additional information about the result, press
I to see
the value of f(x) (the value of the left side of the equation minus the
value of the right side of the equation). If f(x) equals 0 or is relatively
is very likely that
has found a solution. However, if
is relatively large, you must use judgment in interpreting the
Example: A Solution With One Root.
Find the root of the equation:
Calculates x using
guesses 0 and 10.
Example: An Equation With Two Roots.
Find the roots of the
B: More About Solving Equations