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8

You can exploit \ooalign: \documentclass{article} \usepackage{amsmath} \makeatletter \DeclareRobustCommand{\nand}{\mathbin{\mathpalette\n@and@or\land}} \DeclareRobustCommand{\nor}{\mathbin{\mathpalette\n@and@or\lor}} \newcommand{\n@and@or}[2]{% \vphantom{#2}% \ooalign{$\m@th#1#2$\cr\hidewidth$\m@th#1\sim$\hidewidth\cr}% } \makeatother \begin{document}...


6

\documentclass{article} \usepackage{bm} \begin{document} \[ \gamma \bm{\gamma} \] \end{document}


5

If you want a symbol, use \mathcal: \[ \mathcal{E}=-N\frac{\Delta\mathnormal{\Phi}}{\Delta t} \] If you prefer “emf”, then it should be in italics like every other variable name: \[ \mathit{emf}=-N\frac{\Delta\mathnormal{\Phi}}{\Delta t} \] Full example: \documentclass{article} \usepackage{amsmath} \begin{document} \[ \mathcal{E}=-N\frac{\Delta\...


4

For the emf, I will suggest to use mathalfa package with the calligraphic option cal=boondoxo. I have finded this symbol very similar to many Physics books. \documentclass[a4paper,12pt]{article} \usepackage{amsmath} \usepackage{amssymb} \usepackage[cal=boondoxo]{mathalfa} \begin{document} \[\mathcal{E}=-N\frac{\Delta\Phi}{\Delta t}\] \end{document}


4

Here are three possibilities: \documentclass{article} \usepackage{bigstrut} \usepackage{amsmath} \begin{document} \begin{equation*} \left\{ \begin{aligned} a&=\frac{b}{c} \\ a&=e\vphantom{\frac{b}{c_k}}%\\[-1ex]\mbox{} \end{aligned} \right. \end{equation*} \bigskip \begin{equation*} \left\{ \begin{aligned} ...


4

I didn't get your MWE run through, but with a "regular" document class such as article it does run through. One standard trick is to add a \vphantom. \documentclass[fleqn]{article} \usepackage{amsmath} \begin{document} \begin{equation*} \left\{ \begin{aligned} a&=\frac{b}{c} \\ a&=\vphantom{\frac{b}{c}}e \end{aligned} ...


2

With \boldsymbol \documentclass[a4paper,11pt]{report} \usepackage[latin1]{inputenc} \usepackage[T1]{fontenc} \usepackage[francais]{babel} \usepackage[left=3cm,right=2.5cm,top=2.5cm,bottom=3cm]{geometry} \usepackage{color} \usepackage{amsmath} \usepackage{lmodern} \usepackage{amsthm} \usepackage[mathcal]{eucal} \usepackage{amssymb} \usepackage{...


2

I propose these two variants. The first uses the empheq package (which loads mathtools): \documentclass{article} \usepackage{empheq, nccmath} \usepackage{amssymb, amsthm, mathrsfs} \begin{document} We say that a $d$-tuple $\mathbf{T}\in \mathcal{B}(\mathcal{H})^d$ has the $A$-convex property $(\boldsymbol{\mathcal{P}})$ if: \begin{itemize} \item $\...


1

I wouldn't use a gathered environment here; instead, consider using a cases environment. I would also like to propose that you omit the \Downarrow part and streamline the overall structure of the second bullet-point item. Note that either way, the displayed math part belongs to the \item. Hence, \end{itemize} should occur only after the cases are stated. ...


1

You seem to intend to add your own abbreviation-level in terms of a collection of (La)TeX macros to things that already exist. On the one hand this might indeed make understanding the code of your documents more easy to you. On the other hand this might complicate things in case of distributing your .tex source code so that other people can compile it: ...


1

Inside math all letters are treated as individual math variables, so some predefined space will come by default, better to use \mathit, where you want to treat as normal text with italic... PS: Note that it is helpful if you provide a MWE of what you tried, then will check the possibility to fix this issue in some other way...(if possible :-) )


1

That's truly a high level of automatization: upload inkscape generated figures here for fine tuning. \documentclass[tikz,border=3.14mm]{standalone} \usetikzlibrary{arrows.meta,bending} \definecolor{ffqqqq}{RGB}{255,0,0} \begin{document} \begin{tikzpicture}[line cap=round,line join=round,>={Triangle[bend]},x=0.5cm,y=0.5cm] \clip(-0.07329043126526,-0....


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