Is there a more elegant way to express eg 14% (Base_10) in Octal?

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SUMMARY

The discussion centers on expressing 14% in Base 10 as an octal fraction, specifically as 11/100 in Base 8. Participants explore alternative representations, concluding that 14% in Base 10 translates to 0.112 in octal notation. The conversation also touches on the challenges of octal division and the potential for more elegant expressions in octal, such as using terms like "Nine Gadols" for 14% in Base 10. The complexities of converting between bases and the historical context of numeral systems are also highlighted.

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  • Understanding of Base 10 and Base 8 numeral systems
  • Familiarity with octal arithmetic and division
  • Basic knowledge of fractions and their representations in different bases
  • Awareness of historical numeral systems, such as Base 60
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  • Research octal arithmetic techniques and rules
  • Learn about converting fractions between Base 10 and Base 8
  • Explore historical numeral systems and their applications
  • Investigate the creation and use of slide rules for various bases
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Mathematicians, educators, students of number theory, and anyone interested in numeral systems and their applications in practical scenarios.

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Is there a more elegant way to express eg 14% (Base_10) in Octal than as eg 11/100 {Base_8} ?

Tangential: Has any-one seen a Base_8 slide-rule, be-it linear or circular ??
 
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Nik_2213 said:
Is there a more elegant way to express eg 14% (Base_10) in Octal than as eg 11/100 {Base_8} ?

Tangential: Has any-one seen a Base_8 slide-rule, be-it linear or circular ??
Surely, like us, an octal-based critter would round it to the nearest easy fraction - which for them would be "about 1/12th". (Because (Base_8) 1/12th is (Base_10) 1/10th).

But if it had to go for accuracy, they'd dispense with the fractions (as do we) and say "exactly 0.112".

(Did I get those numbers right? I really struggled in base notation in grade school.)
 
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DaveC426913 said:
(Did I get those numbers right? I really struggled in base notation in grade school.)
Well, $$\frac{14_{10}}{100_{10}} = \frac{16_8}{144_8} = \frac{7_8}{62_8}$$ which I'm positive about.

Then I watched a YT vid on dividing in octal and got confused. So, try it the hard way...

<octal>
7/62 = 0%7
70/62=1%6
60/62=0%60
600/62=probably 6 or 7, no clue of the carry.
</octal>

so, I get as far as ##0.107_8## before my failure to memorize the ##10_8 \times## table kicks in. Ah, the follies of youth...
 
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Tangential: Bane of DIY in UK is the zoo of legacy systems. BSP garden taps, any-one ? I grew up with 'Imperial' mensuration, segued to 'scientific. Then I ran into US imports such as HPLC systems that took eg #10-24 and #10-32 UNC/UNF, the latter finger-tight to 200 Bar !!

Extending the above posters' suggestions, I reckoned that, like eg 11_Base10 and 100_Base10 there'd be convenient words for their equivalents_Base8.

I came up with 14% _Base10 == Nine Gadols_Base8 ( To 2½ DP ?) [[ Insert local glyphs for 64Gadolinium ]]

I'm sorry, given Sumerians etc used Base60, my Google-fu failed me on any better way to express 64_Base10...
 

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