Was ist die typografisch richtige vertikale Ausrichtung eines Gradienten-Operators mit Vektorpfeil?

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
\documentclass{scrartcl}
\usepackage[ngerman]{babel}
\usepackage{bm}
\usepackage{mathtools}
\NewDocumentCommand\grad{}{%
  \mathop{\nabla}\nolimits
}
\NewDocumentCommand\gradBold{}
{
  \mathop{\boldsymbol\nabla}\nolimits
}
\NewDocumentCommand\gradA{}{%
  \mathop{\vec{\nabla}}\nolimits
}
\NewDocumentCommand\gradB{}{%
  \mathop{\vec{\vcenter{\hbox{$\nabla$}}}}\nolimits
}
\begin{document}
\[
  \grad f(x) \quad \gradA f(x) \quad \gradBold f(x)
\]
Alternativ: Erzwungene vertikale Positionierung mit \verb|\vcenter| (rechts)
vs.\ normale Positionierung (links)
\[
  \gradA f(x) \quad\text{vs.}\quad \gradB f(x)
\]
\end{document}
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX