Text Formatting ⇒ Additional vertical Space inside Square Root

[ghostanime2001]

How do you automatically add a little space above text or math inside a square root symbol to keep consistency (for example inside quadratic formula) ?

Code: Select all

\documentclass[fleqn]{article} 
\usepackage{adjustbox}
\usepackage{amsfonts}
\usepackage{amsmath}
\usepackage{amssymb}
\usepackage{amstext}
\usepackage{amsthm}
\usepackage{array}
\usepackage{auto-pst-pdf}
\usepackage{bigints}
\usepackage{bigstrut}
\usepackage{booktabs}
\usepackage{bpchem}
\usepackage{calc}
\usepackage{cancel}
\usepackage{chemfig}
\usepackage{chemmacros}
\usepackage{epstopdf}
\usepackage[shortlabels,inline]{enumitem}
\usepackage{fix-cm}
\usepackage[T1]{fontenc}
\usepackage{fouridx}
\usepackage{fullpage} 
\usepackage[margin=1in]{geometry} 
\usepackage{graphics}
\usepackage{graphicx}
\usepackage[utf8]{inputenc}
\usepackage{lewis}
\usepackage{lmodern}
\usepackage{mathtools}
\usepackage{makebox}
\usepackage{microtype}
\usepackage[version=3]{mhchem}
\usepackage{multienum}
\usepackage{multirow}
\usepackage{nccboxes}
\usepackage{pbox}
\usepackage{pgfkeys}
\usepackage{pifont}
\usepackage{pst-math}
\usepackage{pst-node}
\usepackage{pst-plot}
\usepackage{pstricks}
\usepackage{relsize}
\usepackage{siunitx}
\usepackage{tensor}
\usepackage{tikz}
\usetikzlibrary{matrix,calc,intersections,through,backgrounds,arrows,decorations.pathmorphing}
\usepackage{textcomp}
\usepackage{type1cm}
\usepackage{ulem}
\usepackage{wasysym}
\usepackage{xcolor}
\usepackage{xfrac}
\usepackage{xspace}
\setlength{\parindent}{0pt}
\setlength{\parskip}{0pt}
\setlength{\mathindent}{0pt}
\newlist{longenum}{enumerate}{6}
\setlist[longenum,1]{label=\arabic*.}
\setlist[longenum,2]{label=\alph*)}
\setlist[longenum,3]{label=\alph*)}
\setlist[longenum,4]{label=\alph*)}
\setlist[longenum,5]{label=\alph*)}
\setlist[longenum,6]{label=\alph*)}
\newcommand{\pss}{\par\smallskip}
\newcommand{\pms}{\par\medskip}
\newcommand{\pbs}{\par\bigskip}
\newcommand{\ssa}{\\ \addlinespace[\smallskipamount]}
\newcommand{\msa}{\\ \addlinespace[\medskipamount]}
\newcommand{\bsa}{\\ \addlinespace[\bigskipamount]}
\newcommand{\since}{\raisebox{0.56pt}{\rotatebox[origin=c]{180}{$\Large\wasytherefore$}}}
\newcommand{\thus}{\Large{\wasytherefore}}
\newcommand{\ans}[3]{\ch{$\num{#1e#2}$ #3}}
\allowdisplaybreaks
\DisableLigatures{encoding = *, family = *}
\sisetup{inter-unit-product=\cdot,number-unit-product=\text{ }}

\pagestyle{empty}

\begin{document}
\begin{aligned}[t]
&\ce{x_{1,2}}=\cfrac{-\ce{b}\pm\sqrt{\ce{b^2}-\ce{4ac}}}{\ce{2a}}
\end{aligned}
\end{document}

[cgnieder]

I boiled your code down to a minimal working example:

Code: Select all

\documentclass{article}
\usepackage{amsmath}
\begin{document}

\[
 x_{1,2} = \cfrac{-b \pm \sqrt{b^2 - 4ac}}{2a}
\]

\end{document}

Please do this yourself next time! You're much more likely to get an answer that way!

You could define yourself a \bigstrut and insert it into the root:

Code: Select all

\documentclass{article}
\usepackage{amsmath}

\newcommand*\bigstrut{%
  \vrule height\baselineskip depth.3\baselineskip width 0pt\relax}

\begin{document}

\[
 x_{1,2} = \cfrac{-b \pm \sqrt{b^2 - 4ac}}{2a}
\]

\[
 x_{1,2} = \cfrac{ -b \pm \sqrt{\bigstrut b^2 - 4ac}}{2a}
\]

\end{document}

By the way:

• Code: Select all

  \usepackage{graphics}% this one is redundant as
  \usepackage{graphicx}% this one loads `graphics' itself

• Are you really loading `microtype' to disable all ligatures?

  Code: Select all

  \usepackage{microtype}
  \DisableLigatures{encoding = *, family = *}

  Why would you do that? It is one of LaTeX's good sides that it does handle ligatures (and most of the time quite well).
• Why do you misuse `mhchem' to get upright variables? Besides the fact that it really is uncommon and every mathematical typesetting guide tells otherwise (namely to typeset variables in italics) -- why don't you just use \mathrm? This would be both easier to use and would avoid all the parsing `mhchem' does which seems a bit of an overkill just to get upright characters:

  Code: Select all

  \[
   \mathrm{x_{1,2} = \cfrac{-b \pm \sqrt{b^2 - 4ac}}{2a}}
  \]

• Out of curiosity: what do you need all the chemistry packages for:

  Code: Select all

  \usepackage{bpchem}
  \usepackage{chemfig}
  \usepackage{chemmacros}
  \usepackage{lewis}
  \usepackage[version=3]{mhchem}

  Especially for `lewis' and `bpchem' I fail to see what they are good for when you also load `chemfig' and `chemmacros'? But maybe I'm just overlooking the obvious...
• Why do you hide the start of paragraphs?

  Code: Select all

  \setlength{\parindent}{0pt}
  \setlength{\parskip}{0pt}

Please don't be offended by this list but since you're acting against a lot of typographic recommendations I wonder why? Do you have to follow some style guidelines?

Regards

[ghostanime2001]

I am just doing it for my purpose I am not following any guidlines I didn't know one could use mathrm with & inside math environments (for ex. array)