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Math Help - Is the r in polar coordinates a vector?

  1. #1
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    Is the r in polar coordinates a vector?

    When we introduced the idea that the r in (r,theta) can be negative, it made me wonder if the r is a vector. Is it?
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  2. #2
    MHF Contributor chisigma's Avatar
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    Re: Is the r in polar coordinates a vector?

    Quote Originally Posted by lamp23 View Post
    When we introduced the idea that the r in (r,theta) can be negative, it made me wonder if the r is a vector. Is it?
    No, it isn't... r is a real variable and a vector is a set of n real variables, with n>1...

    Kind regards

    \chi \sigma
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