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# what are the different base numbers used for?

base2 is binary? or it should be...? base11 is normal? but there are many, i made a code that has 37 unique ones can someone explain them? https://code.sololearn.com/cKkYhU5P7No4/?ref=app

13th Apr 2019, 7:04 PM
koala 🐨
5 ответов
+ 2
Our decimal system has base 10. It has the numbers 0 - 9. binary: base 2 (numbers: 0 & 1) But I don't know how to convert from one system to another. But on the wikipage there is a list of some systems and where they are used. (btw: base = radix) https://en.m.wikipedia.org/wiki/Radix
13th Apr 2019, 8:16 PM
Denise Roßberg
+ 3
Decimal is used because we have ten fingers. Computers are digital (off/on) so we use binary. Octal and hexadecimal are easy ways to represent binary
14th Apr 2019, 12:26 PM
Da2
+ 3
Number system are based on exponents. 10 raised to the power of 2, hundreds. 10 to the power of 3, thousands... and so on.. 2 raised to 2 - 4, 2 raised to 3 - 8.... and so on
14th Apr 2019, 5:09 PM
Da2
+ 2
Denise Roßberg thank you so much
13th Apr 2019, 8:20 PM
koala 🐨
+ 2