Texas Instruments TI-82 STATS Manual Book page 59

Entering an
Expression in the
Equation Solver
(continued)
Entering and
Editing Variable
Values
3. Press Í or †. The interactive solver editor is displayed.
The equation stored in
displayed on the top line.
Variables in the equation are listed in the order in which
they appear in the equation. Any values stored to the
listed variables also are displayed.
The default lower and upper bounds appear in the last
line of the editor (
A is displayed in the first column of the bottom line if
$
the editor continues beyond the screen.
Tip: To use the solver to solve an equation such as
2
eqn:0=KN.5MV
in the equation editor.
When you enter or edit a value for a variable in the interactive
solver editor, the new value is stored in memory to that variable.
You can enter an expression for a variable value. It is evaluated
when you move to the next variable. Expressions must resolve
to real numbers at each step during the iteration.
You can store equations to any
or , and then reference the variables in the equation. The
Y r
1 6
interactive solver editor displays all variables of all
referenced in the equation.
is set equal to zero and
eqn
å å å å å å å å
bound={L1 99,1 99}
VARS Y.VARS
Math, Angle, and Test Operations 2.9
).
2
K=.5MV
, enter
variables, such as
functions
Y=