Texas Instruments TITANIUM TI-89 - Manual (Page 674)

Numeric Solver 674
For the bounds, you can also enter variables or expressions that evaluate to appropriate
values (
bound={lower,upper} ) or a valid list variable that contains a two-element list
( bound=list ). The bounds must be two floating point elements with the first one less than
or equal to the second one.
Note: You can also select an initial guess graphically.
Solving for the Unknown Variable Solving for the Unknown Variable Solving for the Unknown Variable Solving for the Unknown Variable
After you type an equation in the Numeric Solver and enter values for the known
variables, you are ready to solve for the unknown variable.
Finding the Solution Finding the Solution Finding the Solution Finding the Solution
With all known variables defined:
1. Move the cursor to the unknown variable.
2. Press „
Solve .
3. A é marks the solution and
left N rt .
The édisappears when you edit a value,
move the cursor to the equation, or leave
the solver.
Put the cursor on the
variable you want to
solve for.