104 views

### What'sthedifferencebetween$$$$and?[duplicate]

I don't know the difference between $$$$$$...$$$$$$ and $$$$...$$$$. What's the difference between $$$$$$...$$$$$$ and $$$$...$$$$? \begin{equation*}$$$$...$$$$\end{equation*}?
137 views

49 views

### What is the difference “” and “”? [duplicate]

There are two ways in display-math mode. One is $$*math equations*$$ and the other one is $*math equations*$. But what is difference?
6k views

6k views

### Define additional math operators to be typeset in roman

Mathematical operators, such as function names, should be set in roman type, not italics. Latex already has commands for some operators, including \max, \min, and \log. How can I define additional ...
5k views

65k views

### How do you center equations?

I can't seem to center equations without causing some weird formatting problem. The following results in the R being dropped: \begin{center} E(R_{i,t})=E(\alpha_i)+E(\beta_{i,F_1 } ...
7k views

### What's the best way make an “augmented” coefficient matrix?

When studying systems of linear equations, it's nice to remind people that the last column of the coefficient matrix holds the constants. This is often done in books by putting a vertical line ...
2k views

### Which command should I use for displayed equations?

A number of related questions have already been asked about this issue: align vs equation which is preferable to what to do with this hyperref note on amsmath and even eqnarray vs align But I'm ...
3k views

### variable-sized “such that” pipe

I am looking for a pipe symbol that can be made to vary in height automatically. One of the common ways of writing "such that" in mathematics is with the pipe symbol (|). The pipe can be represented ...