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Maya Mathematics
Instead of ten digits like we have today, the Maya used a base number of 20. (Base 20 is vigesimal.) They also used a system of bar and dot as "shorthand" for counting. A dot stood for one and a bar stood for five.
In the following table, you can see how this works.
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
Because the base of the number system was 20, larger numbers were written down in powers of 20. We do that in our decimal system too: for example 32 is 3×10+2. In the Maya system, this would be 1×20+12, because they used 20 as base.
Numbers were written from bottom to top. Below you can see how the number 32 was written:
20's (1)
1's (12)
It was very easy to add and subtract using this number system, but they did not use fractions. Here's an example of a simple addiMaya Mathematics
Instead of ten digits like we have today, the Maya used a base number of 20. (Base 20 is vigesimal.) They also used a system of bar and dot as "shorthand" for counting. A dot stood for one and a bar stood for five.
In the following table, you can see how this works.
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
Because the base of the number system was 20, larger numbers were written down in powers of 20. We do that in our decimal system too: for example 32 is 3×10+2. In the Maya system, this would be 1×20+12, because they used 20 as base.
Numbers were written from bottom to top. Below you can see how the number 32 was written:
20's (1)
1's (12)
It was very easy to add and subtract using this number system, but they did not use fractions. Here's an example of a simple addition:
8000's
400's
20's + =
1's
9449 + 10425 = 19874
As you can see, adding is just a matter of adding up dots and bars! Maya merchants often used cocoa beans, which they laid out on the ground, to do these calculations.
If you have a Java-enabled browser, you will see an interactive number converter below. Fill in the a number in the top field, and press return to find its Maya equivalent.. Press +1 and -1 to change the number by one.
tion:
8000's
400's
20's + =
1's
9449 + 10425 = 19874
As you can see, adding is just a matter of adding up dots and bars! Maya merchants often used cocoa beans, which they laid out on the ground, to do these calculations.
If you have a Java-enabled browser, you will see an interactive number converter below. Fill in the a number in the top field, and press return to find its Maya equivalent.. Press +1 and -1 to change the number by one.
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این اثر توسط پدیدآور آن، Mdsats در ویکیپدیا انگلیسی، به مالکیت عمومی درآمده است. این مربوط به تمام جهان است. در برخی از کشورها ممکن است به صورت قانونی این امکانپذیر نباشد؛ اگر چنین است: Mdsats به هر کسی اجازهٔ استفاده از این اثر برای هر مقصودی، بدون هیچگونه شرایطی، را میدهد تا وقتی که این شرایط توسط قانون مستلزم نشده باشند.Public domainPublic domainfalsefalse
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2006-12-06 22:06 Mdsats 400×94× (2865 bytes) The equation "5 + 8 = 13" written with Maya numerals
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