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Modulo Operation – Vortex Digit Sum is Equal to the Mod (base - 1)
In this video I go over the modulo operation which returns the remainder of a division between two numbers. For example 100 mod 9 = 1 because 100/9 = 99 + 1/9, hence 1 is the remainder. I then prove that the vortex digit sum (summing the digits until a single digit is obtained) is always equal to the modulo (base - 1) of the number. For example in base 10, the remainder 67 mod 9 = 4 v= 6 + 7 = 13 v= 1 + 3 = 4. This works for any base number system!
#math #vortexmath #modulararithmetic #algebra #education
Timestamps:
- Determining Remainders with the Modulo Operation – 0:00
- a modulo n or a mod n is the remainder of a / n – 0:28
- Vortex sum, repeating digits of division, and modulo operations appear to be equal – 0:47
- Note 1: Vortex sum of 9 gives a mod of 0 – 1:41
- Note 2: Typical convention is 12 = 3 (mod 9) but I will use "v=" notation – 2:15
- Proof: The Vortex Digit Sum = Mod (base - 1) – 3:26
- Base 10 proof: Let a, b, c between integers between 0 and 9 – 5:15
- Expanding the number abc into multiples of 9 obtains the first digit sum, then repeat the process until we obtain the vortex sum – 6:06
- Summarizing the proof for mod 9 – 9:30
- Generalization proof for any other base system – 10:25
- Remainder is always the vortex digit sum: abc mod (base - 1 = p) = vortex digit sum – 12:35
Notes and playlists:
- Summary: https://inleo.io/threads/view/mes/re-leothreads-kqtqxhur
- Notes: https://peakd.com/hive-128780/@mes/messcience-2-vortex-math-part-1-number-theory-and-modular-arithmetic
- Vortex Math playlist: https://www.youtube.com/playlist?list=PLai3U8-WIK0EbRnMsUBx2RxlerL7GQuLX
- MES Science playlist: https://www.youtube.com/playlist?list=PLai3U8-WIK0GhjCHmTw1XbqMD_EdVKdd9 .
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