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displays a message giving you some information about the
solutions found (if any). Tap
Solve app
Message
Zero
Sign
Reversal
Extremum
Cannot find
solution
to clear the message.
Meaning
The Solve app found a point where both
sides of the equation were equal, or where
the expression was zero (a root), within the
calculator's 12-digit accuracy.
Solve found two points where the two sides
of the equation have opposite signs, but it
cannot find a point in between where the
value is zero. Similarly, for an expression,
where the value of the expression has
different signs but is not precisely zero. This
might be be cause either the two points are
neighbours (they differ by one in the twelfth
digit), or the equation is not real-valued
between the two points. Solve returns the
point where the value or difference is closer
to zero. If the equation or expression is
continuously real, this point is Solve's best
approximation of an actual solution.
Solve found a point where the value of the
expression approximates a local minimum
(for positive values) or maximum (for
negative values). This point may or may not
be a solution.
Or:
Solve stopped searching at
9.99999999999E499, the largest number
the calculator can represent.
Note that the Extremum message indicates
that it is highly likely that there is no
solution. Use Numeric view to verify this
(and note that any values shown are
suspect).
No values satisfy the selected equation or
expression.
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