Counting rods alternate forms

[Doug Ewell]

Richard Cook wrote:

>> It is well known that the southern song style of counting rods, had
>> different forms for the digits 4, 5 and 9
>> https://en.wikipedia.org/wiki/Counting_rods , however currently there
>> is no way to represent such forms, 
>
> 〤[U+3024] 〥[U+3025] 〩[U+3029] 

The Wikipedia article (which, as such, needs to be corroborated) says:

"In the 13th century, Southern Song mathematicians changed digits for 4,
5, and 9 to reduce strokes. The new horizontal forms eventually
transformed into Suzhou numerals. Japanese continued to use the
traditional forms."

So there is a distinction between the alternate forms Eduardo is
describing, and the Suzhou ("Hangzhou") numerals derived from them that
Richard cited. 
 
--
Doug Ewell | Thornton, CO, US | ewellic.org