Halting And Restarting The Iteration - HP -225 Owner's Manual

Part 2: Watch what happens if you use —10 and —50 as guesses:
10 T Enters guesses.
50 B (soLvE] AST VX
{T} %X?1,000.00 Retains previous values
$70.0000 for X, S, V, and A; cal-
V210.0000 culates T.
A?2.6000
T=-37.8156
The negative value for T is not physically meaningful for this
problem.
Halting and Restarting the Iteration
To halt the iterative search, press while the HP-22S is displaying
SOLVING. The HP-22S displays INTERRUPTED. Press unknown
variable to see the best estimate as found so far. To restart the
search from where it left off, display the best estimate (it becomes
your initial guess) and solve the equation again.
If the value stored in the unknown leads you to believe that is
not proceeding towards a reasonable answer, you can enter new
guesses and solve again.
6: Evaluating and Solving Equations 89