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binary,math,ancient,egyptian,chinese,math,mathematics,michael schneider Ancient Egyptian Mathematics

Ancient Egyptian Mathematics

posted by thesnipe 2 years 4 months 4 weeks ago • 1895 views
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Very interesting on how advanced the ancient Egyptians were in their mathematics.

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Upvote for anything math related!


written by iniquity  | 2 years 4 months 4 weeks ago | CH
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Meh - the multiplication trick looks less impressive if you're working with both numbers in binary to begin with. When you double the number, you're just shifting it one place to the left - if you write this down, it looks like this:

100
*11
---
100
1000
----
1100

That should look familiar. You end up doing it exactly like a regular third grader would do multiplication - just in binary. So saying that computers work this way is a bit misleading. And, yes, there is implicit multiplication tables involved. It just might not seem that way because the binary multiplication table is (naturally) very short.


written by jmzero  | 2 years 4 months 4 weeks ago | CH
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"The ancient Indian mathematician Pingala presented the first known description of a binary numeral system around 800 BC." -Wikipedia

"Sciences and arts seem to have been in place at the very beginnings of Egypt." -The dude in the beginning of that video

"Ancient Egypt developed over at least three and a half millennia. It began with the incipient unification of Nile Valley polities around 3150 BC." -Wikipedia


written by ajkido  | 2 years 4 months 4 weeks ago | CH
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jmerzo, I thought the cool thing was that the world doesn't present us with binary numbers to begin with, and that this system is conversion process to a binary system that allows for fairly simple calculation that doesn't require memorisation of a times table. Maybe I don't understand your criticism.


written by Engels  | 2 years 4 months 4 weeks ago | CH
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I agree Engels, I can't say I agree with jmerzo, multiplication is based on more visual means rather than memorization.


written by thesnipe  | 2 years 4 months 4 weeks ago | CH
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*dead


written by gorgonheap  | 2 years 2 months 1 week ago | CH
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This published video has been declared non-functional; embed code must be fixed within 2 days or it will be sent to the dead pool - declared dead by gorgonheap.


written by siftbot  | 2 years 2 months 1 week ago | CH
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Awarding kronosposeidon with one Power Point for fixing this video's dead embed code.


written by siftbot  | 10 months 1 week ago | CH
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Tags for this video have been changed from 'binary, math, documentary' to 'binary, math, ancient, egyptian, chinese, math, mathematics, michael schneider' - edited by kronosposeidon


written by siftbot  | 10 months 1 week ago | CH
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*promote


written by kronosposeidon  | 10 months 1 week ago | CH
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Promoting this video back to the front page; last published Wednesday, July 11th, 2007 6:25pm PDT - promote requested by kronosposeidon.


written by siftbot  | 10 months 1 week ago | CH
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>> ^Engels: the world doesn't present us with binary numbers to begin with

The world presents us with no numbers. If we grossly categorize things we can use unary(base 1, think counting on your fingers). All bases are pure and arbitrary abstractions.

While many argue "using base ten follows from having ten fingers", that would technically give us base-11(0-10 fingers). Also consider that, since we are using an arbitrary base anyway, we could use 64(the number you can count to on your fingers of one hand in binary).

One of the nice things about being multi-base conversant, is that it's easy to see how arbitrary and unnatural any of these decisions are. base 60 (think sec/min min/hr) or base 12(think mo/yr hr/day) are used regularly with analog devices, because these bases work better for these purposes. The fact that we label these devices with digital numbers does not effect their non-base-10 function.

We just think of everything in base-10 by default and assume that the world works that way, even though we regularly and unknowingly use systems and technology which rely on other bases.


written by dgandhi  | 10 months 1 week ago | CH
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