Tring to understand Biquinary numbers

[DrizWar]

Some peoples keep talking Biquinary numbers, I do not know what they are...

[galathaea]

Its a system of numbers that is based on seven units of manipulation, separated in to a group of five units (the quinary -- think quintuplets) whose values represent ones, and two special units (the bi) that represent carries (of 5). These units are grouped into columns to allow a basic number system for calculation, and it is the basis of the abacus and even an early system by IBM (this I just found out from my abacus book -- its not off the top of my head...).

[lord loh]

Binary is a number system of only two digits (1 and 0).

The common numbersystem we use is called decimal system. It consists of 10 digits (0,1,2,3,4,5,6,7,8,9).

Another number system you may have heard of is the HEX or the hexadecimal number system. It consists of 16 numbers (0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F)

Any given number can be expressed in any system.
ex: the number 3 can be written in binary as 11

In binary, the place values (from right to left) are as (2^0,2^1,2^2,2^3,2^4...)

(2^n is 2x2x2x2...n times.)

When convering any number(here I am doing it from decimal to binary), the sum of the (number x place values) gives the number.

ex decimal:
635, 5 is in unit(1) place and 3 in tens(10) place and 6 is in hundreds place(100)
So, (6x100)+(3x10)+(5x1)=635

Simillarly in binary, the (decimal) number 23 can be written as
10111
=(1x2^0)+(1x2^1)+(1x2^2)+(0x2^3)+(1x2^4)
=(1x1)+(1x2)+(1x4)+(0x8)+(1x16)
=1+2+4+0+16
=23

For more details you can perform a google search!. You get good results.

[TheCPUWizard]

And 23 in BiQuinary is 01 00100 01 01000

Bi = 2 Quin = 5

Go figure....

This is not a joke..Check any computer reference book circa 1944.

Now if I could just get some 10 00010 10 10000

It is NOT an exponential positional system, neither was roman numerals... Back to school for Lord Loh

[lord loh]

Blunder !

I regret my mistake... I thought that DrizWar was asking about Binary system. I should have read it properly.

Sorry!

However my post on Binary system was well writen I suppose!

Any way what is Biquinary number system ? Could anyone be kind enough to explain me!

And Sorry, Once Again!