One (number) Notations

In algebra and calculus, one the multiplicative identity of any ring.

Descriptions of this Symbol

Observations of one

Arabic (Saudi Arabia and some provinces) one1-ar.png

On the right we find the Saudi math book for elementary-school shows one. In this example 15 multiplied by 1 (WAHED in Arabic context).
Download the book and find the example in page 22.

Dutch  one1-du.png

The Dutch book Basisboek Wiskunde shows the digit one in page 19. the example represents a multiplication process.
Download the book and find the example.

English  one1-en.png

In the algebra book in bibliography we find this example on the right represents addition process, one plus nine.
Find the example in page 2 in google book links

Encoding the observations of one