General ⇒ Double superscript error

[Danyon]

Hi,

I have been sent a .tex file by a colleague which I want to create a PDF from. When I run PDFLaTeX I receive the following:

"Error: Double superscript". The error refers to the line below:

Code: Select all

In the previous section, we had shown that $\sqrt{n}\bar{V}_n^{-1/2}(\hat{\theta}_n-\theta_0) \rightarrow_d N(0, I_p)$, where $\bar{V}_n=A'\mathbf{P}'E(UU'|X)\mathbf{P}A=A^*'B_K^{-1}\mathbf{p}'E(UU'|X)\mathbf{p}B_K^{-1}A^*$.

I have isolated it to this part of the above:

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\mathbf{P}A=A^*'B_K^{-1}

How do I resolve this?

Thanks

[5gon12eder]

The problem is within the

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$A^*'$

LaTeX gets confused what you (or your colleague) mean with the prime after the superscript asterisks (I'm too). You (he) probably wanted something like

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$A^*{'}$

(Stared A with prime.)

or

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$A^{*'}$

(A with superscript {asterisks prime}.)

Best

[Danyon]

Thanks so much for your help - much appreciated. I will try what you have suggested.