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Talk:Using an Abacus

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[edit] Uncanonical Calculation Order?

Every other source I've read about the abacus recommends working left to right. That is, beads higher in value before beads lower in value (hundreds before tens, tens before ones).

It's also odd that the addition instructions specify right to left, while for subtraction it is left to right.

I think its because in multiplication you work from right to left. Possibly because you're using the full abacus?

[edit] Other Abacus Types?

This page appears to assume an abacus with a five-and-two arrangement, rather than the more modern four-and-one. Would it make sense to adjust it, and if not, at least acknowledge how one abacus can differ from another?

I think we should teach using both kinds and the reader should choose what they want to study. The two most prevalent are the 5-and-2-beaded Chinese abacus (suanpan) and the 4-and-1-beaded Japanese abacus (soroban) which was derived from the Chinese version. There's even a 10-beaded Russian abacus and an Incan abacus was recently discovered that's based on knotted ropes, but those can probably wait.
--Everlong 22:14, 21 December 2006 (UTC)

[edit] Templates?

Anyone up for making snazzy templates like the Chess Wikibook? Look at the following board setup:

Chess zhor 26.png
Chess zver 26.png a8 xx b8 c8 d8 e8 xx f8 g8 h8 Chess zver 26.png
a7 b7 xx c7 d7 e7 xx f7 g7 h7 xx
a6 b6 c6 xx d6 e6 xx f6 g6 xx h6
a5 b5 c5 d5 xx e5 xx f5 xx g5 h5
a4 xx b4 xx c4 xx d4 xx e4 ql f4 xx g4 xx h4 xx
a3 b3 c3 d3 xx e3 xx f3 xx g3 h3
a2 b2 c2 xx d2 e2 xx f2 g2 xx h2
a1 b1 xx c1 d1 e1 xx f1 g1 h1 xx
Chess zhor 26.png


Now look at the wiki-code for it:

{{Chess diagram|=
|tleft
|
|=
8 |xx|  |  |  |xx|  |  |  |=
7 |  |xx|  |  |xx|  |  |xx|=
6 |  |  |xx|  |xx|  |xx|  |=
5 |  |  |  |xx|xx|xx|  |  |=
4 |xx|xx|xx|xx|ql|xx|xx|xx|=
3 |  |  |  |xx|xx|xx|  |  |=
2 |  |  |xx|  |xx|  |xx|  |=
1 |  |xx|  |  |xx|  |  |xx|=
   a  b  c  d  e  f  g  h
|}}
{{-}}

This format could quickly be translated into easily-altered images of all the types of abaci out there. Just awesome as I think about it.

Everlong 15:25, 5 April 2006 (UTC)