I'm compiling LaTeX with MiKTeX. I get an ambiguous warning which interrupts compilation.
LaTeX Warning: Command \' invalid in math mode on input line 209.
209 > \begin{equation} M = \left\{ m : {R_n} \left[ a \right] \right\} \end{equation}
The same line compiles very well on Overleaf.
You may wish to try replacing \{ and \} in this instance with \lbrace and \rbrace - this should compile properly. So your equation becomes
M = \left\lbrace m : {R_n} \left[ a \right] \right\rbrace
Related
Here is my snippet from LaTeX doc i am creating:
54 \subsection{Definicja}
55 Interpolacją nazywamy czynności, których celem jest znalezienie wartości pewnej
funkcji \textit{f(x)} w dowolnie wybranym punkcie z przedziału x_{0}, x_{n}
I keep getting error:
konstrukcja.tex:55 Missing $ inserted ...dowolnie wybranym punkcie z przedziału x_
I am new to LaTeX so I have no idea what does it mean.
Wrap mathematical expressions in $...$. Since you did not know that it is best for you to read a basic introduction to LaTeX. There are a lot of references listed in these two questions on TeX.SX:
What are good learning resources for a LaTeX beginner?
LaTeX Introductions in languages other than English
My personal favourite is »LaTeX and friends« by M. van Dongen.
\documentclass{article}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\begin{document}
\subsection{Definicja}
Interpolacją nazywamy czynności, których celem jest znalezienie wartości pewnej
funkcji $f(x)$ w dowolnie wybranym punkcie z przedziału $x_{0}$, $x_{n}$
\end{document}
"Missing $ inserted" is probably caused by the underscores
Try:
przedziału x\_{0}, x\_{n}
I'm using an Align environment inside of a proof, and I'm getting the error "Missing $ inserted." I've commenting out all but the first line of the align makes the error go away, but I still can't figure out what the problem is. No solution I could find works. Am I missing something?
\documentclass[12pt,letterpaper]{article}
\usepackage{ifpdf, enumerate}
\usepackage{mla}
\usepackage{gb4e}
\usepackage{amsfonts}
\usepackage{amsmath}
\usepackage{amsthm}
\usepackage{stmaryrd}
\newcommand{\tuple}[1]{\ensuremath{\left \langle #1 \right \rangle }}
\newcommand{\evaluation}[2][]{\ensuremath{\llbracket #2\rrbracket^{#1}}}
\begin{document}
\begin{proof}
\begin{align*}
\evaluation[\mathbb{M}]{(Mx)(D (x) \& V (x))} = 1 \iff \\
\evaluation[\mathbb{M}]{\lbrack \alpha / x \rbrack (D (x) \& V (x))} = 1 \text{for most constants \alpha} \\
\evaluation[\mathbb{M}]{(D (\alpha) \& V (\alpha))} = 1 \text{for most constants \alpha } \\
\evaluation[\mathbb{M}]{D (\alpha)} = 1 \text{and} \evaluation[\mathbb{M}]{V (\alpha)} = 1 \text{for most constants \alpha } \\
F(\alpha) \in F(D) \text{and} F(\alpha) \in F(V) \text{for most constants \alpha } \\
\intertext{Examining the definitions of the model, we see that there are only four entities that are both in $F(D)$ and $F(V)$: Alice, Bob, Colin, and David. Because this is not more than half of the total twelve entities in the universe, our naive definition of ``most'' is not satisfied. Therefore the statement is false, which implies that the truth value of the origenal proposition is not 1.}
\end{align*}
\end{proof}
\end{document}
Here is what the error message looks like.
./test.tex:24: Missing $ inserted.
<inserted text>
$
l.24 \end{align*}
?
You've missed only one tricky fact: \alpha only works in math mode, so if you replace all occurrences of
\text{for most constants \alpha} \\
(lines 18, 19, 20, 21) with
\text{for most constants }\alpha \\
then your tex will compile sweetly. Also:
\text{for most constants}\ \alpha \\
or:
\text{for most constants $\alpha$} \\
as you already did in line 22 of your code (...$F(D)$ and $F(V)$...).
This answer is not applicable to this exact case, but the given error can also pop up if the "amsmath" package is not being used. It becomes tricky because the whole code looks alright except I had forgotten to add the \usepackage{amsmath} line in the beginning of the document.
Hi
I have trubles with compiling this
\begin{equation}
J = \sum_{j=1}^{C}
\end{equation}
I constantly gets an error
missing $ inserted
which is quite strange because I'm pretty sure that I'm in math environment
I alsow tried this
\begin{equation}
J = $\sum_{j=1}^{C}$
\end{equation}
or this
\begin{equation}
J = $\sum_{$j=1$}^{$C$}$
\end{equation}
but it didnt't do the trick
EDIT
The only thing above is
\begin{equation}
d_{ij}^2 = || x_{i} - p_{ij}||^2 = || x_{i} - (R_{j}s_{j}p_{ij}^* + t_{j} ) ||^2
\end{equation}
However if I delete this the document compile. It seems that in this section there is some error
You have a double newline (i.e. a blank line) in the second code snippet. This causes TeX to drop out of math mode in an attempt to correct this error, hence the subsequent errors about missing $s.
I am creating a document in LateX and the following multivalued function has been giving me trouble for a while.
The Latex code for the above as I gave is
$\[delta \tau_{i,j}^{k}$ = $\left\{$
\begin{array}{l l}
\frac{1}{L_{k}} & \quad \mbox{if ant k travels on edge \textit{i,j}} \\
0 & \quad \mbox{otherwise}
\end{array} \right. \]
While compiling it gives me the following error
! LaTeX Error: Bad math environment delimiter.
See the LaTeX manual or LaTeX Companion for explanation.
Type H <return> for immediate help.
...
l.52 $\[
delta \tau_{i,j}^{k}$ = $\left\{$
?
Any help on fixing this error would be much appreciated.
aschepler is right--it's the [ inside the $.
You may also want to consider the cases environment, which I think is easier for this sort of thing. For you example, you'd have:
\[
\Delta\tau_{i,j}^k=
\begin{cases}
1/L_k & \text{if ant $k$ travels along edge $i,j$} \\
0 & \text{otherwise}
\end{cases}
\]
You can't use both $ $ and \[ \] like that. $ is for in-line equations (fit within a paragraph of text), so you should probably use just \[ \] around your equation and remove all the $s.
When I compile the following latex code:
\begin{align}
f_{m}(x) = c_{1,m} \times I(x_{i}^{m} \geqslant t_{m} ) + c_{2,m} \times I(x_{i}^{m} < t_{m} ),
\end{align}
I always get an error:
! Undefined control sequence.
<argument> ..._{1,m} \times I(x_{i}^{m} \geqslant
t_{m} ) + c_{2,m} \times I...
l.124 \end{align}
When I replace \geqslant with >=, it is okay.
I already include the amsmath package. What would cause the problem?
Thanks and regards!
That command isn't defined in the amsmath package, but rather the amssymb package -- put \usepackage{amssymb} in your preamble and you should be fine.