When Solve Cannot Find A Root - HP 35s User Manual

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Now, solve to find the root.
Keys:

X


X

When SOLVE Cannot Find a Root

Sometimes SOLVE fails to find a root. The following conditions cause the message
  :
The search terminates near a local minimum or maximum (see figure a,
below).
The search halts because SOLVE is working on a horizontal asymptote—an
area where f(x) is essentially constant for a wide range of x (see figure b,
below).
The search is concentrated in a local "flat" region of the function (see figure c,
below).
In these cases, the values in the stack will be same as the values before executing
SOLVE.
D-8
More about Solving


Display:
_

  
Checksum and length.
Cancels Equation mode.
Description:
Your initial guesses for the root.
Selects Equation mode; displays
the equation.
No root found for f(x).