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Unit 8.1.4 - RF Data Tags. RF Data tags can be readable and writeable. Typically there is an ID field of the same 64-128-bit length as for both passive and programmable RFID tags, but extensive read/write memory is located on the tag as well. In all cases, RF Data tags are active. The World's most comprehensive professionally edited abbreviations and acronyms database All trademarks/service marks referenced on this site are properties of their respective owners. TaGR stands for 'Tak and Gaz Romance', a fictional romance from the show Invader Zim. The origins of TaGr are unknown, though most fanfictions involve Tak returning to Earth and she falls in love witath Gaz, or vice versa. Jhonen Vasquez (The creator of Invader Zim) does not support TaGr, but then again, he doesn't support any Invader Zim pairings. TAGR, Venice, California. The mobile app for street art fans and artists. View our conversion chart to find out what size heavy hex nut that you need for your job. Purchase the unique quantity you need from FMW Fasteners today.
To find a missing number in a Sequence, first we must have a Rule
Tagr 4 8 15
Sequence
A Sequence is a set of things (usually numbers) that are in order.
Each number in the sequence is called a term (or sometimes 'element' or 'member'), read Sequences and Series for a more in-depth discussion.
Finding Missing Numbers
To find a missing number, first find a Rule behind the Sequence.
Sometimes we can just look at the numbers and see a pattern:
Example: 1, 4, 9, 16, ?
Answer: they are Squares (12=1, 22=4, 32=9, 42=16, ..)
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Rule: xn = n2
Sequence: 1, 4, 9, 16, 25, 36, 49, ..
Did you see how we wrote that rule using 'x' and 'n' ?
xn means 'term number n', so term 3 is written x3
And we can calculate term 3 using:
x3 = 32 = 9
We can use a Rule to find any term. For example, the 25th term can be found by 'plugging in' 25 wherever n is.
x25 = 252 = 625
How about another example:
Example: 3, 5, 8, 13, 21, ?
After 3 and 5 all the rest are the sum of the two numbers before,
That is 3 + 5 = 8, 5 + 8 = 13 etc, which is part of the Fibonacci Sequence:
3, 5, 8, 13, 21, 34, 55, 89, ..
Which has this Rule:
Rule: xn = xn-1 + xn-2
Now what does xn-1 mean? It means 'the previous term' as term number n-1 is 1 less than term number n.
And xn-2 means the term before that one.
Let's try that Rule for the 6th term:
x6 = x6-1 + x6-2
x6 = x5 + x4
So term 6 equals term 5 plus term 4. We already know term 5 is 21 and term 4 is 13, so:
x6 = 21 + 13 = 34