2-10 Math, Angle, and Test Operations
8302MATH.DOC TI-83 international English Bob Fedorisko Revised: 02/19/01 12:12 PM Printed: 02/19/01 2:27
PM Page 10 of 26
To solve for a variable using the equation solver after an
equation has been stored to
eqn, follow these steps.
1. Select
0:Solver from the
MATH
menu to display the
interactive solver editor, if not already displayed.
2. Enter or edit the value of each known variable. All
variables, except the unknown variable, must contain a
value. To move the cursor to the next variable, press
Í
or
†
.
3. Enter an initial guess for the variable for which you are
solving. This is optional, but it may help find the
solution more quickly. Also, for equations with multiple
roots, the TI
-
83 will attempt to display the solution that
is closest to your guess.
The default guess is calculated as
(
upper +lower
)
2
.
Solving for a
Variable in the
Equation Solver
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