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I always write dx ,ds dphi dtheta in cursive form and I also wanted to write it in latex .

How can I achieve it?

One of reason(s) that I wanted to do so is that , for instance as we observe ds, then it can be interpreted as d times s however generally ds is a one constant. So I want to remove that ambiguity.

Concretely , I want to connect 2 symbols with a single stroke.

The below left ones are the one-stroked and the right ones are 2-stroked.

enter image description here

I should have written the bottom left ds with more small s .

F. Pantigny
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electrical apprentice
  • 274
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    There are plenty of related answers, e.g. https://tex.stackexchange.com/q/480924/82917, https://tex.stackexchange.com/q/231322/82917, https://tex.stackexchange.com/q/491150/82917. – campa Aug 25 '21 at 07:14
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    An upright “d” is frequently used (but the usage is disputable). I have never seen the two letters joined together; can you perhaps show a (printed) source? – egreg Aug 25 '21 at 08:23
  • I added the image to my post . – electrical apprentice Aug 25 '21 at 08:35

2 Answers2

5

Pick a script font of your choice, and build it into the macro \differential. I also chose newtxmath because it looked more compatible with the script font.

\documentclass{article}
\usepackage{amsmath,newtxmath}
\usepackage{aurical}
\usepackage[T1]{fontenc}
\newcommand\differential[1]{\mkern2mu\text{{\Fontauri d}$\mkern-1mu#1$}}
\begin{document}
\[
\int_0^1 x^2 \differential{x}
\]
\[
\int_0^{\pi/2} \theta^2 \differential{\theta}
\]
\[
\int_0^1 s^2 \differential{s}
\]
\end{document}

enter image description here

Here is a version with eulervm for the default math font.

\documentclass{article}
\usepackage{amsmath,eulervm}
\usepackage{aurical}
\usepackage[T1]{fontenc}
\newcommand\differential[1]{\mkern2mu\text{{\Fontauri d}$\mkern-1.5mu#1$}}
\begin{document}
\[
\int_0^1 x^2 \differential{x}
\]
\[
\int_0^{\pi/2} \theta^2 \differential{\theta}
\]
\[
\int_0^1 s^2 \differential{s}
\]
\end{document}

enter image description here

Steven B. Segletes
  • 237,551
3

As the Latins wrote and they said...

enter image description here

"There's no disputing on the tastes." or like the comment of the very nice user @Steven B. Segletes "there is no accounting for taste." or "To each, his own".

I would to use a calligraphic font taken from mathalfa package, option cal.

\documentclass[a4paper,12pt]{article}
\usepackage[cal=boondox]{mathalfa}
\newcommand\dif[1]{\mathcal{d}{\!#1}}
\newcommand\difs[1]{\mathcal{d}{\!\mathcal#1}}
\begin{document}

[\int^{n}_{i=1}{a_i\log(x)\dif{x}}]


[ax\difs{s}]
\end{document}

enter image description here

It is possibile to use in math mode also using frcursive package that you can see the documentation here, https://ctan.mirror.garr.it/mirrors/ctan/fonts/frcursive/frcursive.pdf. But with a lot of humilty I not see a good visual solution.

Sebastiano
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    The common version of the expression in American English is "there is no accounting for taste." Another that is nearly equivalent in connotation is "To each, his own". – Steven B. Segletes Aug 25 '21 at 23:20