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Math Help - Question about pre-calculus notation

  1. #1
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    Question about pre-calculus notation

    I am working through a practice exam and I see what looks like a bracket (it has squared edges, not rounded) and there is an extra vertical line so instead of this: [ it is more like this: |[

    It is basically a squared-off C with two lines at the back part. Can anyone tell me what this notation means for me to do? I would like to finish my exam review. Thank you
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    Hello,
    Quote Originally Posted by ufbonehead55 View Post
    I am working through a practice exam and I see what looks like a bracket (it has squared edges, not rounded) and there is an extra vertical line so instead of this: [ it is more like this: |[

    It is basically a squared-off C with two lines at the back part. Can anyone tell me what this notation means for me to do? I would like to finish my exam review. Thank you
    I think I can guess what you're talking about.
    Code:
     ____
    | |
    | |
    |_|__
    And there's another one on the right, isn't it ?

    You should have shown part of the exercise so that we have a support.


    I've used a notation with my teachers : x \in \bold{[}1,5\bold{]} means that x is an integer between 1 and 5.
    Maybe there are other interpretations. So tell me if it makes a logical sense.
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