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Math Help - What does Mean!?

  1. #1
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    What does Mean!?

    Hello
    I Am very stumped.
    I need to know what this symbol means.
    ?????
    here it is in a equation
    1 radian = 180 degrees /
    5 x 1 radian = 5 x 180 degrees /
    5 radians = 286.5 degrees
    does anyoe know the value or meaning or name of this symbol?
    If someone could help me that would be great thank you!!


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  2. #2
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    Actually the symbol you're looking for is \pi. What you have is a symbol that marks the end of lines/paragraphs (such as in Microsoft Word).

    Here's an entire article for you: Pi
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  3. #3
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    Are you sure that the symbol means pi?
    because this is the exact formula from the lesson in math 30 applied that I am working on rite now.
    1 radian = 180 degrees /


    If it was pi? why wouldnt they just put pi... instead of confusing the out of me?
    Last edited by topsquark; August 7th 2008 at 08:05 PM.
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  4. #4
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    Yes it is pi and its symbol is \pi. What you've learned is a conversion between two different ways to express angles: 1 radian is equal to \frac{180}{\pi} \: \text{degrees} or equivalently, 1 degree is equal to \frac{\pi}{180^{\circ}}.

    With this new notation, we can see that, for example, 30^{\circ} = 30^{\circ} \cdot \frac{\pi}{180^{\circ}} = \frac{\pi}{6}

    When writing in terms of radians, usually we leave it unitless (if you want, add the unit 'rad' to the end).
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  5. #5
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    Ok.... if you say so Ill give that a try
    Thank-you very much.
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  6. #6
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    Quote Originally Posted by Melissa911 View Post
    Are you sure that the symbol means pi?
    because this is the exact formula from the lesson in math 30 applied that I am working on rite now.
    1 radian = 180 degrees /


    If it was pi? why wouldnt they just put pi... instead of confusing the out of me?
    ! I really like that. Your comment.

    That's just the beginning. Wait till you encounter other weird symbols that mathematicians use.
    Last edited by topsquark; August 7th 2008 at 08:03 PM.
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