Latex: Using small problems in the summary updating ...

latex is fucking good. When you write a document using Latex, it turns out that it's really too powerful to contain so many, so wide a range of everything in one, and one is enough! Of course, when using it there will be a lot of details can not be remembered, then you will encounter the small problems summarized here, explained as follows:

• Mainly used to summarize the latex used in the process of the small problems encountered, convenient for later inspection;
• relating to the use of tags, commands, etc.;

all minor issues are as follows:
1. TikZ the position of node labels under node rather than node when plotting.
Reference: TikZ node labels more below than below
Workaround: Add a label to the node's options:

\begin{tikzpicture}    \fill (0,0) circle (0.05) node[below,draw]{$b_1$};    \fill (1,0) circle (0.05) node[label=below:$b_1$,draw]{};\end{tikzpicture}

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Latex: Using small problems in the summary updating ...