Cfrgtkky

So basically I need to put a vector symbol (vec) on an upright letter for which I use mathrm in math mode. For example:

vec{mathrm{E}}

While Katex seems to get the alignment right on all the letters:

My pdfTeX version doesn't do so well (using the same code):

Clearly the vector symbol is positioned such that it would be aligned if the letters were in italic mode.

Which leads me to the following question:

• How can I get the vector symbol aligned with the upright math letter using pdfTeX?

pdfTeX version

$ pdflatex --version

pdfTeX 3.14159265-2.6-1.40.16 (TeX Live 2015/Debian)

kpathsea version 6.2.1

Document setup

documentclass[a4paper,12pt]{scrartcl}

usepackage[utf8]{inputenc}

usepackage{amsmath}

Complete example

documentclass[a4paper,12pt]{scrartcl}

usepackage[utf8]{inputenc}

usepackage{amsmath}



begin{document}



begin{equation*}

 vec{mathrm{A}};vec{mathrm{B}};vec{mathrm{C}};vec{mathrm{D}};vec{mathrm{E}};vec{mathrm{F}};vec{mathrm{G}};vec{mathrm{H}};vec{mathrm{I}};vec{mathrm{J}};vec{mathrm{K}};vec{mathrm{L}};vec{mathrm{M}};vec{mathrm{N}};vec{mathrm{O}};vec{mathrm{P}};vec{mathrm{Q}};vec{mathrm{R}};vec{mathrm{S}};vec{mathrm{T}};vec{mathrm{U}};vec{mathrm{V}};vec{mathrm{W}};vec{mathrm{X}};vec{mathrm{Y}};vec{mathrm{Z}}

end{equation*}



end{document}

Before (vec) and after (upvec):

documentclass[a4paper,12pt]{scrartcl}

usepackage[utf8]{inputenc}

usepackage{amsmath}

newcommandupvec[1]{!vec{,mathrm{#1}}}

begin{document}

begin{equation*}

vec{mathrm{A}};vec{mathrm{B}};vec{mathrm{C}};vec{mathrm{D}};

vec{mathrm{E}};vec{mathrm{F}};vec{mathrm{G}};vec{mathrm{H}};

vec{mathrm{I}};vec{mathrm{J}};vec{mathrm{K}};vec{mathrm{L}};

vec{mathrm{M}};vec{mathrm{N}};vec{mathrm{O}};vec{mathrm{P}};

vec{mathrm{Q}};vec{mathrm{R}};vec{mathrm{S}};vec{mathrm{T}};

vec{mathrm{U}};vec{mathrm{V}};vec{mathrm{W}};vec{mathrm{X}};

vec{mathrm{Y}};vec{mathrm{Z}}

end{equation*}



begin{equation*}

upvec A;upvec B;upvec C;upvec D;upvec E;upvec F;upvec G;

upvec H;upvec I;upvec J;upvec K;upvec L;upvec M;upvec N;

upvec O;upvec P;upvec Q;upvec R;upvec S;upvec T;upvec U;

upvec V;upvec W;upvec X;upvec Y;upvec Z

;upvec{a}

end{equation*}



[

vec Aupvec B f = upvec D vec E g

]

end{document}