HP 33s hp 33s_user's manual_English_E_HDPM20PIE56.pdf - Page 332
When SOLVE Cannot Find a Root
UPC - 082916001456
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Now, solve to find the root. Keys: Display: Description: 2.3 I X 2.7 |H X Your initial guesses for the ) _ root. %ª1%:. 2. Selects Equation mode; displays the equation. ! No root found for f(x). 8 8 8 ) f(x) is relatively large. 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). If the ending value of f(x) (stored in the Z-register) is relatively close to zero, it is possible that a root has been found; the number stored in the unknown variable might be a 12-digit number very close to a theoretical root. 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 ending value of f(x) is the value of the potential asymptote. The search is concentrated in a local "flat" region of the function (see figure c, below). The ending value of f(x) is the value of the function in this region. D-8 More about Solving