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• Methods of factoring primes
We're all learning. Some things can be helped along by reading those books. I certainly am not a professional. Even the professionals can go on and learn. To some extent what was put forth here as "SPD" split-promote-discard was the realization that the gross (mod 5) = −1 and thus we could use the a...
by icarus Posted in Dozenal
8 Replies
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Last post by cstyle643
11:49 PM - Yesterday
Three people don't understand your system. Let me go back. It seems that Neme5is suggested you couldn't talk decades (but you can; cf. the OP cartoon, and decimal is the base we all live within. It was a springboard to talking about dozenal analogs to the decades), and hotdog8 said it would be confu...
by icarus Posted in General Chit-chat
10 Replies
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Last post by icarus
9:58 PM - Yesterday
• Hello.
HA! I forgot I passed my birthday! I AM FOUR DOZEN YEARS OLD! Yaaaaaaaay!! But I still act like four.
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Last post by icarus
7:10 PM - Yesterday
Hello Nirvana. I am not sure how your system works. When I was a kid I would say "forty" meaning four dozen, presuming I was thinking dozenally anyway. I would read the dozenal numbers and use co-opted decimal terminology. For example, I would call "6b4" (decimal 1000) "six hundred dalenty four" (da...
by icarus Posted in General Chit-chat
10 Replies
238 Views
Last post by icarus
9:58 PM - Yesterday
• Hello.
Welcome to the forum Trienas. I like graphic design too!! I might be more immature than you say you are and I am 5 1 (signed dozenal) years old! Keep on drawin'!
5 Replies
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Last post by icarus
7:10 PM - Yesterday
• Methods of factoring primes
Modular mathematics. 144 (mod 5) = 4 (or −1). 288 (mod 5) = 3 since 2(144 (mod 5)) = 2(−1) = −2; 5 − 2 = 3. Gauss did all this a couple centuries ago. No need for pages of tables. You'll find this in the first several chapters of a basic elementary number theory book, right after they talk about pri...
by icarus Posted in Dozenal
8 Replies
65 Views
Last post by cstyle643
11:49 PM - Yesterday
• Subitizing/Visualizing large numbers using Signed Bases
This seems to be because counting, naturally evolving, is not necessarily an academic exercise, but one of mindset and practicality. The Romans said "undeviginti" meaning nineteen. My suggestion was similar to Yoruba, but dispensing with the 2's. I know that fouls up the idea. The numerals would not...
by icarus Posted in General
185 Replies
1.3K Views
Last post by SenaryThe12th
12:43 PM - Today
• How to teach dozens
My method is simple. People are already dozenalists. one-two-three-four-five-six-seven-eight-nine-ten-eleven-dozen. one dozen-one, etc.; two dozen. Three dozen, four dozen, ... ten dozen, eleven dozen, disgusting. I mean gross. Terry Gross. Fresh air. Which is a dozen dozens. Hella donuts, hella egg...
by icarus Posted in Dozenal
8 Replies
94 Views
Last post by icarus
11:56 AM - Oct 12, 2018
• Subitizing/Visualizing large numbers using Signed Bases
Indeed. Again, if we drop having to do the whole balanced thing, why not write digit-11 as digit-negative-one in dozenal? I guess it becomes "digit-negative-one-like" or "digit-one-till-dozen" instead. Just thinking out loud. This would get us to a partial "separate identity" scheme for dozenal in t...
by icarus Posted in General
185 Replies
1.3K Views
Last post by SenaryThe12th
12:43 PM - Today
• DSA Annual Meeting, 1202;.
I am haha lactose intolerant: my favorite drink is milk. But I have acclimated to it. I am half cannibal and had to replace that vulgar part of the diet with some other protein. (TMI) In all seriousness as soon as I got back I got slammed with work. I have the written version of the notes and just h...
25 Replies
715 Views
Last post by icarus
9:14 PM - Oct 10, 2018
• Prime factoring in dozens
I knew it would be amenable to calculus. Limits.
by icarus Posted in Dozenal
40 Replies
318 Views
Last post by icarus
5:58 PM - Oct 10, 2018
• Prime factoring in dozens
I'll split it. Can't do it now. What's the thread title?
by icarus Posted in Dozenal
40 Replies
318 Views
Last post by icarus
5:58 PM - Oct 10, 2018
• Subitizing/Visualizing large numbers using Signed Bases
We can examine a variety of exotic conditions, like strange matter and charmonium. These are interesting to consider, but their properties are likely only of interest to a small proportion of physicists. In a similar vein, triple doppio macchiato pumpkin spice lattes are really tasty to the people t...
by icarus Posted in General
185 Replies
1.3K Views
Last post by SenaryThe12th
12:43 PM - Today
• Subitizing/Visualizing large numbers using Signed Bases
I could see a case for overline notation and for distinct numerals. Indeed, preference. I am not saying overlines are wrong , just that the visual interpretation of numerals tends to collapse the range. In larger bases perhaps this is desired. Alternate bases multiply tables necessary; it becomes us...
by icarus Posted in General
185 Replies
1.3K Views
Last post by SenaryThe12th
12:43 PM - Today
• Prime factoring in dozens
Agreed. Math is fascinating. I just don't know what he's trying to prove, it seems like grandstanding. This is a problem with textual communications. Face to face it would perhaps be better understood, but alas... "Bevins, call off the dogs ..."
by icarus Posted in Dozenal
40 Replies
318 Views
Last post by icarus
5:58 PM - Oct 10, 2018
• Subitizing/Visualizing large numbers using Signed Bases
Yes, balanced bases confuse me personally. I can be nearly an order of magnitude off very easily. Some of this might just come from lack of familiarity regarding the use. I know how to use them, it's just a different paradigm. Retaining six distinct symbols is essential in any scheme. One might argu...
by icarus Posted in General
185 Replies
1.3K Views
Last post by SenaryThe12th
12:43 PM - Today
• Subitizing/Visualizing large numbers using Signed Bases
I can see the wisdom in having easily-distinguishable numerals for positive and negative numbers. Indeed this is part of my non-arithmetic / human-cognition argument why senary is too small: the symbols are more monotonous. It would be much worse when we have nega-two, nega-one, zero, one, two, and ...
by icarus Posted in General
185 Replies
1.3K Views
Last post by SenaryThe12th
12:43 PM - Today
• Prime factoring in dozens
Magnifico, Galileo Galilei! Now tell me what this hemi-modulated brilliance has to do with prime factoring in dozens?
by icarus Posted in Dozenal
40 Replies
318 Views
Last post by icarus
5:58 PM - Oct 10, 2018
• Subitizing/Visualizing large numbers using Signed Bases
I am not a negabase fan. It confuses me (I am mildly dyslexic) and so I have no opinion, thus I do not post...but challenging one on their propositions is okay. One ought to expect it. One shouldn't be expected to conform to orthodoxy when none is surely established. Notations are notations. Maybe s...
by icarus Posted in General
185 Replies
1.3K Views
Last post by SenaryThe12th
12:43 PM - Today
• Prime factoring in dozens
Brilliant. Fields medal. Now what?
by icarus Posted in Dozenal
40 Replies
318 Views
Last post by icarus
5:58 PM - Oct 10, 2018
• Prime factoring in dozens
Richard this is sounding cranky. An appeal to authority. Please. If this is something the world should know, write a paper and describe it. Get it published. Don't go on about bottling lightning here. If you've bottled it, then let it stand in the proper place: in peer review. It is interesting; it ...
by icarus Posted in Dozenal
40 Replies
318 Views
Last post by icarus
5:58 PM - Oct 10, 2018
• Prime factoring in dozens
I found one too. Get a can of sardines and eat 'em. Then get tin snips and cut the can down the side. Then unroll the can. BOOM! pi. Stinky pi, but pi indeed. I did this in 1997 HA. And I got cut and had to go to the hospital for stitches. But I did it! But I didn't publish it. Did you? ; )
by icarus Posted in Dozenal
40 Replies
318 Views
Last post by icarus
5:58 PM - Oct 10, 2018
• Prime factoring in dozens
I don't think we have to put anyone down. Number theory is pretty easy; in earlier years it was called the higher arithmetic. You do have to acquaint yourself with it, however. You have to be familiar with the axioms (1 is not prime, the unique factorization theorem, etc.) and from there, using logi...
by icarus Posted in Dozenal
40 Replies
318 Views
Last post by icarus
5:58 PM - Oct 10, 2018
• Prime factoring in dozens
Seconded: theory of numbers, etc. One cannot prove using an intensive spreadsheet; it doesn't work that way, it isn't science.
by icarus Posted in Dozenal
40 Replies
318 Views
Last post by icarus
5:58 PM - Oct 10, 2018