Math & Science ⇒ Laplace transform symbol

[pechisbeque]

Hi,

I've been trying to get the curly Laplace transform symbol.
The two possibilities are:

Code: Select all

\mathcal{L}

or

Code: Select all

\mathscr{L}

(which requires the package mathrsfs)

However, the first option is not the most appropriate choice and the second outputs the correct but slanted symbol.

Does anyone know a solution for this? Thanks!

[frabjous]

It looked slanted to me most placed I found it online, but I suppose another option, if you don't mind using XeLaTeX to compile, would be to use the unicode character ℒ directly. DejaVu Sans is just about the only font I have installed that has it:

Code: Select all

% xelatex
\documentclass{article}
\pagestyle{empty}
\usepackage{fontspec}
\setmainfont{DejaVu Sans}
\begin{document}
    ℒ  
\end{document}

laplace.png (620 Bytes) Viewed 40472 times

I'll attach a cropped PDF with just that character too. I suppose if you really wanted to avoid XeLaTeX, you could include my little pdf with \includegraphics wherever you wanted to use it.

[bev]

frabjous,

I think that's the \mathcal{L} symbol. That works for me for Laplace. What's the problem with it?

[frabjous]

\mathcal{L} looks like this:

mathcal.png (666 Bytes) Viewed 40398 times

If you look carefully, you'll see that this is different from what I posted. In particular, it is more slanted.

I don't have a problem with \mathcal{L}. pechisbeque did. So I was trying to find an alternative. pechisbeque complained about one of the possibilities being too slanted, so I thought maybe the DejaVu symbol would be better.

But without knowing what pechisbeque disliked about \mathcal{L}, I can only guess. This thread is somewhat old though, and pechibeque never replied, so I assume (s)he found something (s)he liked well enough.

[bev]

One of the things I like about our interaction, frabjous, is that we're mostly both right .

You are correct that the symbol you posted is what one would normally get when using \mathcal{L}.

I was correct in that when *I* used \mathcal{L} I got the other symbol (the one you said was more desirable). But.... check this out:

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\documentclass[12pt]{article}
\usepackage{eucal}
\begin{document}
$\mathcal{L}$
\end{document}

I realized that my default setup has eucal for the math stuff, hence our difference. I had forgotten; sorry bout that. The good news is that the original poster here doesn't have to look for a hard-to-find package. S/he already has it.

I'm posting a pdf of the eucal version of \mathcal{L}.

[frabjous]

One of the things I like about our interaction, frabjous, is that we're mostly both right .

LOL.

Nice to know about the eucal package; I haven't tried that one before.