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Chapter 10: The SOLVER Feature
6. The following window shows
the approximate value of
X (0.449489742), the right
side value of the equation
(assumed as “0”, at step #2),
the left side value (which the
entered expression results to this value when the value X is
entered), and the difference between the left and the right side.
7. Since the L-R difference
above indicates a margin of
error, try entering smaller
steps. Press
C
to go
back to step #3. Enter
the value of X, then press
@
h
to execute the SOLVER again. When the next
window appears, try entering smaller step value (“0.00001”, for
example).
8. Press
E
to register the
step value change, then
@
h
. Although the
value of X appears to be
unchanged, the margin of
error will have become small
enough (“0”, in this example), to be as close to zero as possible.
Note: As you may well know, there may be more than one solution to the
equation. To obtain the value of the other solutions, set the starting
point of Newton&bisection method lower (“-10”, for example) or
execute the SOLVER again with the current solution as a starting
point.