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1

Here are two possibilities: nccmath adds an optional argument to \intertext, which is added to the vertical spacing of this command. You also can use the spreadlines environment, from mathtools , which adds a vertical spacing (mandatory argument) between all rows of an amsmath environment. \documentclass[]{scrreprt} \usepackage{eurosym,bm, mathtools} % ...


1

I would suggest using aligned in the following way, placing equation numbers at the top of each group and using extra indentation for visual grouping. I also provide an alternative with just aligned, but then you have to remember to use \notag often. \documentclass{book} \usepackage{mathtools} \begin{document} Using \verb+aligned+ \begin{align} x^{(2)}...


2

Per David comment, \\ required to separate both the lines and use \quad to align the operators. Off topic, in general, trignometry terms like cos, sin and tan should come in roman font only, so please use \tanh instead of tanh and the modified tags are: \documentclass{book} \usepackage{mathtools} \begin{document} \begin{align} \begin{split} x^{(2)} &= \...


3

I would do it with aligned, in this way: \documentclass[]{article} \usepackage{amsmath,mathtools, nccmath} \begin{document} \begin{align} \label{one} & \begin{aligned}x^{(2)} = & \mfrac{1}{10} ( \varphi(100x_1+175) +\varphi(-100x_1+150) + \cdots {}\\ & + \varphi(100x_1-125) +\varphi(-100x_1-150) ) -\smash{\mfrac{1}{10}} \end{aligned} \\[1ex] ...


4

You can get the desired centering by using array; however, this doesn't seem the best way to lay out the equation. For the second equation, I'm not seeing why using l instead of {u,v}: \documentclass[journal]{IEEEtran} %\usepackage{cite} % is it compatible with IEEEtran? \usepackage{graphicx} % no pdftex option %\usepackage{epstopdf} % not required \...


2

I would write your equation as follows: \documentclass[jornal]{IEEEtran} \usepackage{amssymb, amsthm, bm, mathtools} % math env. \DeclarePairedDelimiter\abs{\lvert}{\rvert} \usepackage{cases} \interdisplaylinepenalty=50 \usepackage{color} \usepackage{enumerate} \usepackage{subfig} \usepackage{lipsum} \begin{document} \lipsum[1] \begin{equation} \sigma^\...


4

Are you looking to achieve the following result? I must confess to having no idea what "note2" is supposed to represent in the structure of the equation. If you inspect the code below, you will notice that I replaced the \left\{ and \right. instructions and the aligned environment with a single cases environment. \documentclass{article} \usepackage{...


1

Lessons learned: always enclose the arguments of subscripts and superscripts in braces use the commands from amsmath to format text inside equations (e.g. \mathsf instead of \textsf, \mathbf instead of \textbf,...) Thank you for your help, campa.


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