Math & Science ⇒ Too much space in squared trigonometric functions

[Cham]

I'm having a small glitch with trigonometric functions to some exponent (say squared). There's too much space before its argument, as shown with this simple MWE:

Code: Select all

Code, edit and compile here:

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\documentclass[11pt,letterpaper,twoside]{book}
\usepackage[T1]{fontenc}
\usepackage{lmodern}
\usepackage[total={6in,10in},left=1.5in,top=0.5in,includehead,includefoot]{geometry}
\usepackage{nccmath,amsmath}
\usepackage{amsfonts}
\usepackage{mathtools}
\begin{document}
Blabla bla:
    \begin{equation}
        \sin^2 \vartheta = \sin^2 \! \vartheta
    \end{equation}
\end{document}
 
 
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Preview:

trig.jpg (8.81 KiB) Viewed 11029 times

Adding the command \! (a negative space) before the argument almost solves the spacing issue, but it's not exactly "right". What would you do in such a situation?

[Johannes_B]

I wouldn't do anything. Looks ok to me.

[Cham]

Which one? With the space, or using \! before the argument?

[Ijon Tichy]

The first one. As I've already told: You are spending a lot of time to change things, you should not change.

[Cham]

I'm changing my code to improve it (as a purist) and to improve the output.

This huge document is a major project for me. The 12pt version is very nice and satisfying, but the font is too big. It feels a bit "amateur" (it has a kind of "MS Word look"). I reduced it to 11pt, and I now have to fix a large amount of mistakes I made when I started that project almost 9 years ago. I was learning LaTeX at that time (and still learning new tricks!).

Also, the new version could be useful since I could copy/paste some parts in new documents. So the code need to be polished.