General ⇒ Missing $ insterted

[pban92]

I am using the following code

Code: Select all

 \begin{figure}[htbp]
  \centering
    \includegraphics[scale=0.5]{./Figures/1984nakamura01.pdf}
 %   \rule{35em}{0.5pt}
  \caption[Spanwise variations of the base-pressure coefficients]{Spanwise variations of the base-pressure coefficients. (a) Smooth flow: \bigcirc, d/h = 0.2; \bigtriangleup,
0.6; \square,1.0. (b) Turbulent flow: \bigcirc, d/h = 0.2, u'/U = 10.8\%, L_x/h = 0.32; \bigcirc,d/h = 0.2, u'/U = 10.0\, L_x/h = 1.97; \square, d/h = 1.0, u'/U = 10.8\%, L_x/h = 0.32,(Nakamura 1984).}
  \label{fig: Spanwise variations of the base-pressure coefficients}
\end{figure}

1. Now I am consistently getting 4 errors saying "Missing $ inserted"
2. I also need to make a solid black circle. But did not find any hint online

Any help?

Many thanks!

[pban92]

Ok solved 1. But still 2 is the prob!

Many thanks!

[Stefan Kottwitz]

Hi,

for instance with bbding:

Code: Select all

\usepackage{bbding}
...
$\CircleSolid$

or with the wasysym package \CIRCLE.
You will finde more possibilities in The Comprehensive LaTeX Symbol List.

Stefan

[pban92]

Stefan bro..thanks a lot!