LyX ⇒ double f looks strange in align setting

[GiToRaZor]

Hi there,

I quite new to LyX and have the following problem.

When entering a word in the align setting that contains a double f, in my case the word affine, the result shows in the exported .pdf as af fine. I don't have the same problem outside of the of the align setting.

For general information, I'm using version 2.0.3 of LyX and write in the document class ams article under opensuse 12.2.

Thanks in advance for any help. I did use the search function, but it didn't come up with any usable results.

[Stefan Kottwitz]

Hi,

welcome to the board!

Instead of directly writing affine in math mode, write it in text mode within math environments, such as \text{affine}. If you need italic, use \textit{affine}, or \mathit{affine} if it has to be in math font. However, as it's a text word, I would use \text, to let look different to a product of math variables.

The reason is, in text mode ff is a ligature, but math variables f and f are typeset with more inter-character space.

Stefan

[cgnieder]

If you want to insert text in a math environment you should declare it as text.

The window:

affine1.png (2.31 KiB) Viewed 4626 times

The source:

affine2.png (10.63 KiB) Viewed 4626 times

The pdf:

affine3.png (2.21 KiB) Viewed 4626 times

I inserted it via »Edit > Math > Text Style > Text Normal Font«

Regards

(Bah -- this is the second Time I used LyX and it drives me crazy!)

[Stefan Kottwitz]

Ah, now noticed that LyX is meant, so you need the GUI way as Clemens described. I hope that my explanation of the reason and the underlying LaTeX commands help too.

Stefan

[GiToRaZor]

Thanks for the help, this really solved my problem.

As an explanation why i did use the math environment: it is common in mathematics to write the actual word you are defining highlighted in the actual definition body. the results with \mathit and \textit are actually way better then what I achieved so far.