HP-30S Scientific Calculator
|
05-28-2020, 06:08 PM
(This post was last modified: 05-28-2020 06:26 PM by watchmaker.)
Post: #5
|
|||
|
|||
RE: HP-30S Scientific Calculator
I've got an HP-30S with Version 03! S/N CN0024 (very early?)
1 ab/c 110 -> 0/1 :-D 2 + 1e-9 - 2 -> 1e-09 sin 3.14159265358 -> 9.793238461e-12 sin(3.1415926535+7391741495627E-23)*1E17-1587582 -> 3.504446358e-01 sin(3.1415926535+7391741495628E-23)*1E17-1587582 -> 3.504438966e-01 :-O Quote:Part of the reason that the HP-30S returns the exact answer of 9 for the forensics test is that the HP-30S takes the liberty of rounding results to integers that are in very close proximity, which provides answers that are reassuring to novice users.Very likely! Check Citizen SRP-280 and SRP-285II (other models from the same Kinpo series). The 280 gives approx. 5.2e-11 in the forensics test, the 285II (and all later Citizen models) gives 0. Note, SRP-285 (without II!) is 14-digit decimal, not binary. TI models are also decimal. Quote:Key in 1 [a b/c] 110 to put in 1/110 as a fraction via the [a b/c] key. The result is: 0/1. Or calculate 1/10-1/11 in fractional form, the result is 0/1Citizen models (280, 285, 285II, 300) and TI-34II (also a similar Kinpo model!) do this fine. Maybe it's a specific firmware bug in HP-30 v. 03. |
|||
« Next Oldest | Next Newest »
|
Messages In This Thread |
HP-30S Scientific Calculator - jebem - 01-26-2017, 11:47 PM
RE: HP-30S Scientific Calculator - Gerald H - 01-27-2017, 06:31 AM
RE: HP-30S Scientific Calculator - jebem - 01-28-2017, 12:58 AM
RE: HP-30S Scientific Calculator - rprosperi - 01-27-2017, 07:49 PM
RE: HP-30S Scientific Calculator - watchmaker - 05-28-2020 06:08 PM
RE: HP-30S Scientific Calculator - watchmaker - 05-28-2020, 06:25 PM
|
User(s) browsing this thread: 1 Guest(s)