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    I'm in year 11. For the past 2 years I have only been taught foundation level maths, but recently I was entered for higher maths because my target grade is a 6. Anyway, long story short, please don't think of me as an idiot for not knowing this symbol. It has something to do with sequences. On the bottom right of the number is a little n. What on earth is that? Sometimes it has a circle above it. I've honestly never seen in it my life.
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    (Original post by YasudaSayo)
    I'm in year 11. For the past 2 years I have only been taught foundation level maths, but recently I was entered for higher maths because my target grade is a 6. Anyway, long story short, please don't think of me as an idiot for not knowing this symbol. It has something to do with sequences. On the bottom right of the number is a little n. What on earth is that? Sometimes it has a circle above it. I've honestly never seen in it my life.
    Could you take a screenshot of the symbol or something?
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    (Original post by YasudaSayo)
    I'm in year 11. For the past 2 years I have only been taught foundation level maths, but recently I was entered for higher maths because my target grade is a 6. Anyway, long story short, please don't think of me as an idiot for not knowing this symbol. It has something to do with sequences. On the bottom right of the number is a little n. What on earth is that? Sometimes it has a circle above it. I've honestly never seen in it my life.
    I'm doing maths at uni and even I have no idea what the hell you've just described.... :lol:

    Just a post a pic of it.
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    (Original post by YasudaSayo)
    I'm in year 11. For the past 2 years I have only been taught foundation level maths, but recently I was entered for higher maths because my target grade is a 6. Anyway, long story short, please don't think of me as an idiot for not knowing this symbol. It has something to do with sequences. On the bottom right of the number is a little n. What on earth is that? Sometimes it has a circle above it. I've honestly never seen in it my life.
    U_n

    ?

    But there are no circles above it
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    (Original post by notnek)
    U_n

    ?

    But there are no circles above it
    Yes it's that, but sometimes the n has a circle above it
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    (Original post by YasudaSayo)
    Yes it's that, but sometimes the n has a circle above it
    It means the nth term. Link that may help.

    But I don't know what you mean about the circle.
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    (Original post by YasudaSayo)
    Yes it's that, but sometimes the n has a circle above it
    u_n denotes the n^{th} term in any given sequence of numbers. For example; a sequence of -4, -2, 0, 2, 4 would have u_1=-4 and u_3=0 and u_4=2

    Not sure where you've seen a circle above the n though...
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    (Original post by YasudaSayo)
    Yes, that's what the confusing mess in my text book looks like. I have no idea what it means or what it's asking of me, though. Nor do I understand what on earth you just said to me.
    Attachment 617386
    There's the circle.
    The "circle" is a full stop...
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    (Original post by NiamhM1801)
    The "circle" is a full stop...
    Name:  ummmmm.png
Views: 43
Size:  26.9 KB Are you stupid?
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    It's been explained well already, but it basically means an nth term sequence.

    When the "n" is replaced by a number, say 1, that means the first term in that sequence. If the number was 15, it would mean the 15th term in the sequence etc. Does that make sense?
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    (Original post by YasudaSayo)
    Name:  ummmmm.png
Views: 43
Size:  26.9 KB Are you stupid?
    No, but thanks for the concern. It's definitely a full stop, you'd never see a circle above the n.

    When you end a sentence, you use a full stop. See? Just did it myself.

    You can even compare it to full stops across the page - isn't it strange how they're identical?
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    (Original post by YasudaSayo)
    Are you stupid?
    This is a great way of encouraging people not to help you.
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    (Original post by notnek)
    This is a great way of encouraging people not to help you.
    dingdingdingdingding :yep:
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    Your way of 'helping me' is just instructing me. I haven't been 'helped' at all.
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    (Original post by YasudaSayo)
    Your way of 'helping me' is just instructing me. I haven't been 'helped' at all.
    I mean...we are trying?

    What exactly about what we've said are you struggling to understand? That way we can help
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    (Original post by YasudaSayo)
    Your way of 'helping me' is just instructing me. I haven't been 'helped' at all.
    I accidentally 'liked' this post! Please don't take that as encouragement to continue to be rude.

    If you have a sequence 3, 7, 11, 15 ...

    The first term u_1 = 3

    The second term u_2 = 7

    The third term u_3 = 11

    The fourth term u_4 = 15

    Some maths questions ask you to find the n^{th} term of a sequence.

    In this case the n^{th} term is u_n = 4n -1
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    (Original post by YasudaSayo)
    I'm in year 11. For the past 2 years I have only been taught foundation level maths, but recently I was entered for higher maths because my target grade is a 6. Anyway, long story short, please don't think of me as an idiot for not knowing this symbol. It has something to do with sequences. On the bottom right of the number is a little n. What on earth is that? Sometimes it has a circle above it. I've honestly never seen in it my life.
    You're talking about the nth term right? A simple google search should help "Nth Term".
    Hope this is what the problem is
 
 
 
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