Tool to convert or write Kaktovik numbers. The Kaktovik Iñupiaq numerals are used in Alaska by Inuit peoples.

Kaktovik Numerals - dCode

Tag(s) : Numeral System, Symbol Substitution

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Kaktovik numbers or numerals (or Iñupiaq numerals) are a positional base 20 numeral system (with a sub-base of 5) used by Inuit/Inupiat peoples in Alaska and Canada.

Start by converting the number to base 20 (see explanations on converting to base N).

Then replace each number (from 0 to 19) with the corresponding Kaktovik symbol:

Decimal Value | Unicode | Image |
---|---|---|

0 | | |

1 | | |

2 | | |

3 | | |

4 | | |

5 | | |

6 | | |

7 | | |

8 | | |

9 | | |

10 | | |

11 | | |

12 | | |

13 | | |

14 | | |

15 | | |

16 | | |

17 | | |

18 | | |

19 | |

__Example:__ `123` is written $ [6, 3]_{20} $ in base 20 (car $ 123 = 6 \times 20^1 + 3 \times 20^0 $) so in Kaktovik.

Numbers can be grouped visually in groups of 5, which can simplify some calculations by hand.

To write a Kaktovik number in classic decimal representation, locate each symbol and replace it with the associated number (between 0 and 19) so as to obtain a positional numeration in base 20 which will still have to be converted into base 10 (decimal).

Decimal writing uses the dot `.` to separate the integer part and the decimal part.

As the writing is in base 20, the first digit after the decimal has the unit $ 20^{−1} = 0.05 $, the second $ 20^{−2} = 0.0025 $ etc.

Kaktovik arithmetic operations in numbers follow the classic rules (while taking into account position values in base 20).

However, Kaktovik symbols are very visual and allow you to quickly and easily perform additions and subtractions (and also some divisions), see the video here

For more calculations, there is a calculator application here

The digits of the Kaktovik Iñupiaq numeral consist of 0 to 5 vertical bars/strokes on the lower part (forming `W`) and 0 to 3 horizontal bars on the top part (forming `𝆒`)

Any references to Inuit, Iñupiats or even Inuktitut are clues.

The count was developed in 1994 in Kaktovik, a town in Alaska by a group of students.

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Cite as source (bibliography):

*Kaktovik Numerals* on dCode.fr [online website], retrieved on 2024-10-04,

- Kaktovik to (Arabic) Numbers Converter
- Kaktovik writer/Encoder
- What are Kaktovik numbers? (Definition)
- How to write in Kaktovik numerals?
- How to convert a Kaktovik number into decimal?
- How to handle decimal numbers in Kaktovik?
- How to do calculations with Kaktovik numbers?
- How to recognize a Kaktovik numerals? (Identification)
- When were Kaktovik numerals invented?

kaktovik,inupiaq,number,numeral,alaska,inuit

https://www.dcode.fr/kaktovik-numerals

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