math-mode
I'm writing a manuscript (100 page) and I used many times the symbols $v$ and $\nu$ in mathematical mode. For example my equations have the form:
$\frac{u+v}{\nu}=0$ and the pdf gives the following:
Unfortunately, after compiling, the two symbols $v$ and $\nu$ are very similar and it is very difficult to distinguish them.
Please can you help me to overcome this problem knowing that I can't change the symbol $v$ in 100 pages
This is no problem with XeTeX if you load a font that contains these characters:
\documentclass{minimal}
\usepackage{fontspec}
\setmainfont{DejaVu Serif}
\setsansfont{DejaVu Sans}
\setmonofont{DejaVu Sans Mono}
\begin{document}
\texttt{∀x(∃y((f(x)=y)∧(¬(g(y)=y))))}
If $\phi$ is a formula of first-order logic and $x$ is a variable, then
\texttt{∀$x$($\phi$)} is again a formula of first-order logic.
\end{document}
Note: Never load the inputenc package when compiling with XeTeX.
Results using DejaVu Sans Mono:
Results using FreeMono:
You need to use $ in the columns with mixed text/math (or alternatively make those math columns and use \text for the text) but the last column is just math so there you can add the $ in the preamble. tabu unfortunately redefines the >{} <{} syntax in an incompatible way but for simple cases, as here, it still works as it should.
All entries in the final column are set in math display style, with no additional markup required for each entry.
\documentclass{article}
\usepackage{amsmath}
\usepackage{tabu}
\usepackage{longtable}
\usepackage{booktabs}
\begin{document}
\tabulinesep=1mm
\begin{longtabu} to \linewidth {l X[3,c] >{$\displaystyle}X[1,c]<{$}}
\toprule
& $f(t)$ & F(s)\\
\midrule
1. & Unit impulse $\delta(t)$ & 1\\
2. & Unit step $1(t)$ & \frac{1}{s}\\
3. & $t$ & \frac{1}{s^2}\\
4. & $\displaystyle \frac{t^n}{(n-1)!} \quad \left(n=1,2,3,\ldots\right)$ &
\frac{1}{s^n}\\
\bottomrule
\end{longtabu}
\end{document}
Best Answer
Judging from the image you probably have
in your document.
Replace it with
and the output of
will be, with no other change to your document,