Problem with tipa \textnrleg

The expected "long leg n" turns out as "6".how come the words after the long leg n will appear in next line? {where l is the log likelihood function,\\ \mathnrleg is the vector of nuisance parameters,\\ ($\hat{\theta}$,$\hat{\mathnrleg}$) is the maximum likelihood estimator of($\theta$,$\mathnrleg$),\\ $\tilde{\mathnrleg}$ is the restricted maximum likelihood estimator of $\mathnrleg$ under $\text {H}_0.$}

MWE:

\documentclass[12pt]{beamer}
\usepackage[utf8]{inputenc}
\usepackage{amsmath}
\usepackage[T1]{tipa}
\usepackage{tipx}
\usetheme{Frankfurt}
\usefonttheme{serif}
\usecolortheme{dolphin}

\begin{document}
\begin{frame}

\textcolor{blue}{\underline {Likelihood Ratio Method}}
\begin{itemize}
\item For a scalar parameter of interest $\theta$, the likelihood ratio statistic for testing the null hypothesis, $\text{H}_0$: $\theta$= $\theta_0$ versus $\text{H}_1$: $\theta$ $\neq$ $\theta_0$ is given as,
\setlength{\abovedisplayskip}{0pt}
\setlength{\belowdisplayskip}{0pt}
$$\Psi=2[l(\hat{\theta},\hat{\textipa{\textnrleg}}$$
\end{itemize}
\end{frame}
\end{document}


• welcome to tex.sx. please provide a small compilable example, starting with \documentclass and ending with \end{document} that actually results in this problem. that will give helpers something concrete to work with. otherwise, they'll have to construct a test themselves, and that could involve a lot of useless guessing. Dec 6, 2017 at 16:34
• Please do not use edits to ask new questions. Dec 6, 2017 at 17:32
• i thought it's related with the \textnrleg as the problem appear after this too
– yap
Dec 6, 2017 at 17:35
• Nobody will see the new question hidden in your old. Also please provide a MWE that reproduces the problem and not just code fragments. Dec 6, 2017 at 17:37
• why my mwe will all squeeze together when i post it out? sorry i am new here
– yap
Dec 6, 2017 at 17:45

If your aim is to use the “long tailed n” as a math symbol, define a command for it. Since \textnrleg is supposed to appear in text, add \textnormal around it. Using \text is not sufficient, because the tipx font lacks other shapes and you'd get again a 6 if you use just \text{\textnrleg} in an italic or boldface context.

I minimized the code, as beamer is not necessary.

\documentclass{article}
\usepackage{amsmath}
\usepackage[T1]{tipa}
\usepackage{tipx}

\newcommand{\mathnrleg}{\textnormal{\textnrleg}}

\begin{document}
$\Psi=2[l(\hat{\theta},\hat{\mathnrleg}$
\end{document}


Don't use, under any circumstances, $$ in a LaTeX document. • thanks it works! can i know why i shoudnt use$$? i thought it's for equation
– yap
Dec 6, 2017 at 16:55
• Dec 6, 2017 at 16:56