Is LaTeX Preview Working Properly?

[Fredrik]

They are both displaying the top row of pixels missing on my computer.

That seems to be an issue with the noparse tags, not with tex or itex. I have noticed before that noparse doesn't always work as advertised.

 

[Gokul43201]

That problem has been around for a long time Gokul, but since you're retired staff with over 10K posts, I guess you've been here much longer than that. Another problem with itex (example: $\mathbb R$) is that it changes the distance to the next line. You would often get better results with tex tags actually. And I'll just type a few more words to make sure that there's at least one line of text below the math expression.

Thanks for the pointer, Fredrik. I've definitely noticed the line-spacing issue, but oddly, never noticed the other problem until now. And I find it hard to believe that I've only ever used dots or vectors on tall symbols within tex tags and never with itex (but I guess that's possible)!

 

[Dickfore]

The LaTeX preview does not work for me. When I hit the Preview Post button, I see my old equations. What is the solution?

 

[DrGreg]

The LaTeX preview does not work for me. When I hit the Preview Post button, I see my old equations. What is the solution?

Use your browser's command to refresh the window after the "Preview Post" has gone wrong. See post #53.

By the way, does anyone know if chroot is aware of this problem?

 

[chroot]

I'm aware of it, I just can't tell if it's something going on on the server end, or the client end. Nothing on the site itself has changed, so it's either something caused by a downstream provider (i.e. a caching proxy server), something in some newer version of a browser, or...

I will do some poking around to gather some evidence of these hypotheses.

- Warren

 

[Fredrik]

I'm using Firefox 3.6.3 on Windows 7, but I just tried it with Internet Explorer 8.0.7600.16385 on the same computer, and it has the same problem. The refresh/resend workaround works in IE too.

 

[Gokul43201]

Likewise with Firefox 3.0 on OS X.

 

[Dickfore]

In Google Chrome on Windows Vista too.

$$\int_{-\infty}^{\infty}{\int_{-\infty}^{\infty}{e^{\textup{i} \, k \, (x - x')} \, f(x') dx' \, \frac{dk}{2\pi}}} = f(x)$$

 

[Saladsamurai]

Test1

$$\int_0^\infty e^{-x}\,dx$$Nope. Problem exists using Google Chrome on OSX too.

 

[Mentallic]

I also use google chrome, and I can vouch for Saladsamurai that preview only works sometimes (better than before though).

 

[Fredrik]

I just did another test. Logging out and back in again doesn't solve the issue, but when I logged out, restarted the browser, cleared the browser cache and logged back in, it worked as it should. (But only once). I also tried to just clear the browser cache between previews, and that didn't work. Really weird.

 

[estro]

I have the same problem [Chrome/Firefox under Windows 7]
The only workaround that works for me is refreshing the preview page.

 

[Fredrik]

test $$a$$ foo $$e$$ bar $$c$$.

Edit: D'oh. I meant to just preview that, not post it. At least I learned something, I think. Clearing the cache for the last hour doesn't help, but clearing the cache and the cookies. for the last hour does help. Hm, I guess I should try just the cookies too.

Uh...just clearing the cookies is not sufficient, and now I see that clearing both the cookies and the cache doesn't work either. Not when I preview anyway. I'll have to post this to see if "preview changes" behaves differently than "save changes".

Yes, it does. If I clear both before I post, it will look OK immediately after I have posted (without the refresh that's needed otherwise). This isn't at all useful as some sort of workaround, but maybe it will help chroot figure out what's wrong.

 

[CompuChip]

Wait, you find clearing your cookies and cache before posting (and then probably having to re-login and stuff) easier than pressing F5 once?

 

[Fredrik]

You may want to read the last paragraph of my post again.

 

[Jonathan Scott]

I can't get TeX to work at all (Chrome 6), not even after clearing cache and refreshing, and I tried submitting. I may have had errors in my first attempt, but I don't see any now. This is inline: $Gm$

This is display:

$$Gm$$

I've tried it in Firefox too. No different.

(I see on coming back later that the inline one is now displaying, but the display one is still just a broken image)

 

[Jonathan Scott]

I can't get TeX to work at all (Chrome 6), not even after clearing cache and refreshing, and I tried submitting. I may have had errors in my first attempt, but I don't see any now. This is inline: $Gm$

This is display:

$$Gm$$

I've tried it in Firefox too. No different.

(I see on coming back later that the inline one is now displaying, but the display one is still just a broken image)

Seems to be working today (apart from the usual need to refresh during preview). This could perhaps be related to the fact that I apparently used TEX tags in upper case instead of tex in lower case. I had tried both, but I may have made some other mistake when I was using the lower case version.