You either list the elements, or you specify a rule fulfilled by all elements of the set (and only by them).
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1.listing methods 2.roster methods
1. listing method i.e A = {1, 2, 3, 4, 5} 2. set builder notation i.e B = {x | 1 < x < 10 and 3 | x}
1roster gagu 2 linements
There are way more than just 2 methods. 1. Write down the elements, works well for finite sets. e.g.{1, 2, 3, pi, apple} 2. Sets have a pattern, P e.g. {a | a x b < 0} (of course provided ba ahead of time) 2' Sets have a symbol or a name e.g. Complex Numbers (denotes as a bolded C) 3. Countable sets, sets that can be written in a sequence. Sequence (an) Set {an}
In binary code, the number 100 represents the decimal number four. Binary code is a system of representing numbers using only two digits, 0 and 1. Each digit in a binary number represents a power of 2, with the rightmost digit representing 2^0, the next digit to the left representing 2^1, and so on. Therefore, in the binary number 100, the rightmost digit is 0 (representing 2^0), the next digit to the left is 0 (representing 2^1), and the leftmost digit is 1 (representing 2^2), which adds up to the decimal number four.