Solving an equation on the HP50G (as compared to the Prime)

07202019, 08:24 AM
Post: #2




RE: Solving an equation on the HP50G (as compared to the Prime)
4.5006e2 is not a solution, but it is a local minimum, which is why the numerical solver can converge there. The HP42S solver does this, too, but it at least helpfully tells you "Extremum" when it does so.
With different starting values, you can guide it to the actual root. My copy of the HP50g manual (edition 1, April 2006) has this example on page 610, and while it also fails to point out that 4.5006e2 is an extremum and not a root, it does show how to enter a starting value of 3 to get the root 3.045. 

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Messages In This Thread 
Solving an equation on the HP50G (as compared to the Prime)  rrpalma  07202019, 05:51 AM
RE: Solving an equation on the HP50G (as compared to the Prime)  Thomas Okken  07202019 08:24 AM
RE: Solving an equation on the HP50G (as compared to the Prime)  RMollov  07202019, 08:28 AM
RE: Solving an equation on the HP50G (as compared to the Prime)  Thomas Okken  07202019, 08:37 AM
RE: Solving an equation on the HP50G (as compared to the Prime)  RMollov  07202019, 08:51 AM
RE: Solving an equation on the HP50G (as compared to the Prime)  rrpalma  07202019, 06:39 PM

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