TI-83 Plus General Information 743
Error Type Possible Causes and Suggested Remedies
BAD GUESS In a CALC operation, you specified a Guess that is not
between Left Bound and Right Bound.
For the solve( function or the equation solver, you
specified a guess that is not between lower and upper.
Your guess and several points around it are undefined.
Examine a graph of the function. If the equation has asolution, change the bounds and/or the initial guess.
BOUND In a CALC operation or with Select(, you defined
Left Bound > Right Bound.
In fMin(, fMax(, solve(, or the equation solver, you
entered lower upper.
BREAK You pressed the É key to break execution of a program,
to halt a DRAW instruction, or to stop evaluation of an
expression.