HP 35S EQN solve only finding one solution
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09-25-2017, 09:21 PM
Post: #2
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RE: HP 35S EQN solve only finding one solution
(09-25-2017 08:56 PM)Trond Wrote: Is anyone else having this problem? Yes, the 35s is far more intelligent than the 32SII in this regard. Since X only occurs once in the equation it can provide a symbolic (!) solution: x²–4 = 0 => x = √4 which is +2 for the 35s. Just the same as if you had pressed 4 √x. That's why a solution is returned immediately, regardless of the two initial guesses in the variable X and the stack's x-register. Of course you can also solve without this feature: simply add another X somewhere, e.g. by a simple X^2 + 0xX – 4. The "=0" part is not required. Now 0 STO X –5 SOLVE X returns -2. You will also notice that it takes a short moment before the solution is displayed. Just because now the result is not calculated directly but – as usual – approximated by iteration. Dieter |
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Messages In This Thread |
HP 35S EQN solve only finding one solution - Trond - 09-25-2017, 08:56 PM
RE: HP 35S EQN solve only finding one solution - Dieter - 09-25-2017 09:21 PM
RE: HP 35S EQN solve only finding one solution - Trond - 09-25-2017, 09:36 PM
RE: HP 35S EQN solve only finding one solution - Gene - 09-25-2017, 09:58 PM
RE: HP 35S EQN solve only finding one solution - Trond - 09-25-2017, 11:34 PM
RE: HP 35S EQN solve only finding one solution - Logan - 09-26-2017, 01:12 PM
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