Latex insert picture, insert formula

Latex Insert a picture

\begin{
    figure}
	\centering
	\includegraphics[width=3.5in]{
     Fill in the image address here }\\
	\caption{
      Image description statement }\label{
    flowblock}
\end{
    figure}\label{
    tu1}

“\label{tu1}” To give the picture a name , When quoted in the paper, it can automatically match the picture changes
usage Fig.\ref{tu1}
Actually, the picture is the fifth picture , At this point, the paper will show Fig 5

Insert picture location

The default location is at the top of the page , stay \begin{figure} Then add [htbp] The picture is floating
[t] At the top
[b] It means at the bottom of the page

LaTeX Insert formula

\begin{
    equation}
	
 Formula content （ It can be downloaded from mathype Of “ preset ” After setting up   Copy and paste ）
	
\end{
    equation}