Post Reply 
4-banger?
01-23-2014, 08:59 PM
Post: #10
RE: 4-banger?
(01-23-2014 08:41 PM)Dieter Wrote:  
(01-23-2014 07:29 PM)Gerson W. Barbosa Wrote:  No x<=y? This appears to be very useful and important, otherwise it wouldn't be the second test available on the HP-12C, along with x=0.

Any test that includes an OR operator (like X≤Y? or X≥0?) can be replaced by a combination of two other tests. In this case, X≤Y? is the same as X≠Y? followed by X<Y?.

So if the number of tests really is limited, the device should provide <, >, = and ≠. Everything else can be easily assembled.

Once again, another complete set is ≤, >, =, and ≠. This set has the advantage it was used already on the HP-25C and almost all of its successors, so it fits well in the line.

I doubt, however, the need for four or eight tests on a basic scientific. I even doubt the need for programmability at all there. Is the 300S programmable? Or the 10bii? If you want to catch the students (instead of the students, you know), don't load your calc with stuff they don't need. Put fractions on it instead, maybe LCM and GCD, etc.

d:-)
Find all posts by this user
Quote this message in a reply
Post Reply 


Messages In This Thread
4-banger? - Scottie - 01-23-2014, 03:57 PM
RE: 4-banger? - Jeff O. - 01-23-2014, 05:58 PM
RE: 4-banger? - walter b - 01-23-2014, 07:08 PM
RE: 4-banger? - Gerson W. Barbosa - 01-23-2014, 07:29 PM
RE: 4-banger? - Dieter - 01-23-2014, 08:41 PM
RE: 4-banger? - walter b - 01-23-2014 08:59 PM
RE: 4-banger? - Dieter - 01-23-2014, 09:40 PM
RE: 4-banger? - walter b - 01-24-2014, 08:13 AM
RE: 4-banger? - BillCarter - 01-24-2014, 06:30 PM
RE: 4-banger? - walter b - 01-24-2014, 11:23 PM
RE: 4-banger? - walter b - 01-26-2014, 12:44 PM
RE: 4-banger? - walter b - 01-27-2014, 10:38 AM
RE: 4-banger? - Dieter - 01-28-2014, 09:39 PM
RE: 4-banger? - Scottie - 01-23-2014, 06:28 PM
RE: 4-banger? - walter b - 01-23-2014, 06:44 PM
RE: 4-banger? - Jeff O. - 01-23-2014, 06:47 PM
RE: 4-banger? - Michael de Estrada - 01-23-2014, 06:57 PM
RE: 4-banger? - Sanjeev Visvanatha - 01-24-2014, 11:43 PM
RE: 4-banger? - Sanjeev Visvanatha - 01-26-2014, 09:41 PM
RE: 4-banger? - walter b - 01-26-2014, 10:07 PM
RE: 4-banger? - Sanjeev Visvanatha - 01-26-2014, 10:11 PM
RE: 4-banger? - Terje Vallestad - 01-26-2014, 10:11 PM
RE: 4-banger? - Sanjeev Visvanatha - 01-26-2014, 10:13 PM
RE: 4-banger? - Scottie - 01-27-2014, 06:46 PM
RE: 4-banger? - Scottie - 01-27-2014, 06:53 PM
RE: 4-banger? - walter b - 01-27-2014, 09:30 PM
RE: 4-banger? - Jonathan Cameron - 01-27-2014, 06:59 PM
RE: 4-banger? - walter b - 01-27-2014, 09:56 PM
RE: 4-banger? - Paul Dale - 01-27-2014, 10:16 PM
RE: 4-banger? - d b - 01-27-2014, 11:22 PM
RE: 4-banger? - walter b - 01-28-2014, 08:14 AM
RE: 4-banger? - walter b - 01-28-2014, 03:12 PM
RE: 4-banger? - Paul Dale - 01-28-2014, 05:32 AM
RE: 4-banger? - d b - 01-28-2014, 08:57 AM
RE: 4-banger? - Paul Dale - 01-28-2014, 10:10 AM
RE: 4-banger? - walter b - 01-28-2014, 11:52 AM
RE: 4-banger? - Sanjeev Visvanatha - 01-28-2014, 12:53 PM
RE: 4-banger? - Marcus von Cube - 01-28-2014, 03:21 PM
RE: 4-banger? - d b - 01-28-2014, 04:46 PM
RE: 4-banger? - walter b - 01-28-2014, 05:08 PM
RE: 4-banger? - Didier Lachieze - 01-28-2014, 05:28 PM
RE: 4-banger? - Massimo Gnerucci - 01-28-2014, 07:23 PM
RE: 4-banger? - d b - 01-28-2014, 06:30 PM



User(s) browsing this thread: 1 Guest(s)