Texas Instruments TI-82 Manual page 15

TI-83 This second method of solving can be used instead
of the first method anytime you need to solve for an input
variable or find where two expressions are equal.
METHOD 2:
tity must have all terms on the left-hand side and a 0 on
the right-hand side or vice-versa.)
Return to the home screen with
Access the solver by pressing
no equations stored in the solver, you will see the screen
displayed on the right -- or
-- if the solver has been used previously, you will see
a screen something like the one shown on the right.
If this is the case, press
then have the screen shown in the previous box.
Let us return to the example where we are solving
v(t) = 3.622(1.093)
Since the equation you enter is Òeqn = 0Ó, subtract 15,000
from both sides of the equation 15,000 = 3.622(1.093)
and enter the expression shown on the right.
Press
ENTER
for editing purposes, press
reappears.)
With the cursor covering the 5 in the T location, enter
a guess, say 10. (You could use the default guess that
automatically appears.)
Press
ENTER
bound location. These are the values between which
the TI-83 searches for a solution. You do not have to
change these values unless you get an error message or
you want a quicker search for the solution.
Therefore, you can often skip this step.
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The equation containing the unknown quan-
2nd
0 . If there are
MATH
CLEAR
t
for t when v = $15,000.
or . (Note: To return to the equation
until the previous screen
or and the cursor moves to the
( ) .
MODE QUIT
and you should
t
,
A-15
Chapter 1
This method uses the
equation solver that is
built into the TI-83.
You must, like in the
first method, enter an
expression that equals 0.