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Math Help - How do I get these equation and author tag in one line?

  1. #1
    Junior Member
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    How do I get these equation and author tag in one line?

    \frac {dP}{dr} = \frac {-(P+\pho c^2) \nu'} {2} \tag { Oppenheimer \& Volkoff}
    I need to get these in one line, please someone write me the exact code for this , i also have other equations before it, that i need to align with this line
    the lines upper to this equation is

    \begin{equation}
    \left.
    \begin{aligned}
    KP &= e^{-\lambda} \Big( \frac {\nu'}{r}+ \frac {1}{r^2}\Big)-\frac {1}{r^2} \\
    KP &= e^{-\lambda} \Big(\frac {\nu ''}{2}-\frac {\lambda ' \nu '}{4} + \frac {(\nu')^2}{4} + \frac {\nu' -\lambda'}{2r}\Big) \\
    K \rho c^2 &= e^{-\lambda}\Big (\frac {\lambda '}{r}-\frac {1}{r^2}\Big) +\frac {1}{r^2}
    \end{aligned}
    \right\} \tag{Tolman 1939}
    \end{equation}
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  2. #2
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    Re: How do I get these equation and author tag in one line?

    I am not sure I understood what you need.
    \[
    \frac {dP}{dr} = \frac {-(P+ \rho c^2) \nu'} {2} \tag { Oppenheimer & Volkoff}
    \]
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  3. #3
    Forum Admin topsquark's Avatar
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    Re: How do I get these equation and author tag in one line?

    Quote Originally Posted by cooper607 View Post
    \frac {dP}{dr} = \frac {-(P+\pho c^2) \nu'} {2} \tag { Oppenheimer \& Volkoff}
    I need to get these in one line, please someone write me the exact code for this
    Are you perhaps trying to do this?
    \frac {dP}{dr} = \frac {-(P+\rho c^2) \nu'} {2} \text{ Oppenheimer \& Volkoff}

    It's "text" instead of "tag."

    -Dan
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  4. #4
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    Re: How do I get these equation and author tag in one line?

    thanks i solved it
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