Gullstrand-Painleve/Doran articles with bad Latex?

Main Question or Discussion Point

I've been intrigued for some time by the following posts, but they all have lots of Latex errors (at least for me, Firefox/Linux).
https://www.physicsforums.com/blog.php?b=580 [Broken]
https://www.physicsforums.com/blog.php?b=590 [Broken]
https://www.physicsforums.com/blog.php?b=855 [Broken]
Can anyone confirm they are broken before I make an idiot of myself in a PM, and in any case is it appropriate to PM for this sort of thing?

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Answers and Replies

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Mentz114
Gold Member
I see a lot of broken Latex with FireFox

\begin{flalign} dt\,+\,\frac{\beta}{1-\beta^2}\,dr&=&d\bar{t}&=& &d\breve{t}-\,\frac{1}{1+\beta}\,dr\\[6mm] d\phi\,+\,\frac{\beta}{1-\beta^2}\,\frac{a}{(r^2+a^2)}\,dr&=&d\bar{\phi}&=& &d\breve{\phi}\,-\,\frac{1}{1+\beta}\,\frac{a}{(r^2+a^2)}\,dr \end{flalign}
This is it fixed.
\begin{align} dt\,+\,\frac{\beta}{1-\beta^2}\,dr&=d\bar{t}= d\breve{t}-\,\frac{1}{1+\beta}\,dr\\ d\phi\,+\,\frac{\beta}{1-\beta^2}\,\frac{a}{(r^2+a^2)}\,dr &= d\bar{\phi}= d\breve{\phi}\,-\,\frac{1}{1+\beta}\,\frac{a}{(r^2+a^2)}\,dr \end{align}

I see a lot of broken Latex with FireFox
This is it fixed.
\begin{align} dt\,+\,\frac{\beta}{1-\beta^2}\,dr&=d\bar{t}= d\breve{t}-\,\frac{1}{1+\beta}\,dr\\ d\phi\,+\,\frac{\beta}{1-\beta^2}\,\frac{a}{(r^2+a^2)}\,dr &= d\bar{\phi}= d\breve{\phi}\,-\,\frac{1}{1+\beta}\,\frac{a}{(r^2+a^2)}\,dr \end{align}
Heh, I am already using those equations, they seem to work just fine ;) I just wanted to see how he puts it all together, it sounded interesting, and not too far above my level. BTW it looks just as broken in Chrome.