3
votes
3answers
130 views

Plotting functions and denoting equation on the figure

How can I plot the functions P=20-1/5*Q and P=5+1/9*Q so as to find the equilibrium point? The figure I need is like the following: Furthermore, how could I put the equation on each ...
7
votes
1answer
110 views

Arrow pointing to subscript in equation

I'm writing an equation for the components of a contracted tensor. I want to label one of the lower (covariant) indices with the text "rth positon," and have an arrow pointing to it from below. Any ...
1
vote
2answers
64 views

`\tag` and `\Rightarrow`

\documentclass[a4paper,12pt]{article} \usepackage{amsmath} \usepackage{fullpage} \usepackage{secdot} \usepackage{setspace} \setlength\parindent{0pt} \title{\vspace{-3em} Quantum Mechanics} ...
8
votes
1answer
131 views

Equation number for each row of a matrix equation

Is it possible to give an equation number to each row of a matrix equation? How could I have equation labels in the vein of subequation numbers, one for each row of the matrix equation? Here, I'd ...
4
votes
1answer
65 views

Beamerposter does not automatically change font size of equation number

I'm using the beamerposter package. While I'm able to change the font size of my equations, I cannot change the size of their corresponding labels. Consider the code below as a MWE. Is this ...
7
votes
1answer
59 views

Automatically reference a set of equations in align

Is there a way to automatically refer to a set of equations in an align environment? E.G. I would like this to read "From Eqs.(1-3), we can clearly see..." \documentclass{article} ...
7
votes
1answer
150 views

Numbering equations with letter and number?

I need all the equations in one of the sections to be numbered as letter (R) and an ascending number (1, 2, 3...). So they look like (R1), (R2), (R3) etc. I do not want the number of the ...
2
votes
1answer
81 views

Equation not displaying correctly

Just a quick question about equations. I have been trying to get my equations to display correctly but so far no luck. What I require is this What I am getting With this code \begin{equation} ...
9
votes
2answers
297 views

Label variables of equation using tikz without using itemize

I'm trying to use tikz to label the variables of an equation. I know of a similar question (Itemized Equation) but the answer uses itemize to label the variables. I would like to do something similar ...
5
votes
2answers
148 views

Left-justified equations with left tags (so it looks like an enumeration)

I want to make a math enivornment (preferably a customized align/flalign environment) with left-justified/left-aligned equations (as it is possible with the flalign environment) and left-aligned tags ...
4
votes
1answer
129 views

An equation tag which goes over two lines

I would like to make an 2-line equation tag, for a single equation. I am using the \tag command, and it works as long as I don't store a label for the equation. The moment I store a label, LaTeX barfs ...
1
vote
1answer
256 views

Prevent multiple equation numbers when using \allowdisplaybreak with align

I have a very long equation of the following format \begingroup \allowdisplaybreaks \begin{align} a &= very long expression here\\ + & another long expression here\\ + & another long ...
0
votes
0answers
29 views

Global label in a LaTeX “align” [duplicate]

I use \begin{align} \label{blah} ... \end{align} in order to do equations of multiple lines. Unfortunately the equation number (coming from label{blah}) is not centered vertically in the middle of ...
3
votes
2answers
3k views

label multiple lines of equations [duplicate]

Suppose I have the equations \begin{align} f(x) = x^2 g(x) = \exp( x ) \end{align} I would like to use on single label for these lines, and ideally the equation number would be placed vertically ...
8
votes
1answer
271 views

Label equations arbitrarily

When I have equations, as in \begin{equation} ... \end{equation} Can I arbitrarily assign the numbers to the equations? Instead of the usual order (1), (2), (3), ..., I'd like something like (1), ...
6
votes
1answer
857 views

How to remove parenthesis in an equation number created by \tag?

This is probably simple, but I can't figure it out. How can I remove the parentheses around a \tag in an align equation? I would like the second line (and only that) to contain [2] instead of ([2]). A ...
4
votes
2answers
629 views

Adding labels to a formula

I have a diagram like this, explaining a formula: \documentclass{article} \usepackage{stackrel} \begin{document} $\stackrel[e+f+g+h^i]{a^b}{c d}$ \end{document} For this example, I have removed ...
3
votes
1answer
2k views

fleqn and \eqno together?

It seems that I can not use together fleqn option [to move the equations to the left] and \leqno [to give a hand-made label to equations]. Any suggestions?
6
votes
1answer
371 views

Equation tag in twoside-mode outer

At the moment I thinking about the following think. When I use the twoside mode to write a book I want to print the number of the equation outer. I can modify it manually with these two commands: ...
2
votes
2answers
1k views

How to label an optimization problem with a label such as (P)?

I am trying to write an optimization problem in my document, and for convenience, to define a label to refer to it. I don't want to refer to it as equation (3), which I know how to do, I want to ...