Why Does LaTeX Show Invalid for Simple Math Inputs?

[HallsofIvy]

I'm back! My fiancee's computer went down after an electrical storm. (She had it plugged into a surge suppressor but there was a lightning strike within 100 yards. Apparently it was not suppressible!)

Anyway, now that I am home I see that my LaTex always gives "invalid" even for something as simple as [ tex ]\theta[ /tex ].
[tex]\theta[/itex]

Any one know why that is happening?

 

[Kurdt]

We've had a bit of server trouble Halls. Here is Hoot's announcement about our LaTeX problems.

https://www.physicsforums.com/announcement.php?f=17

 

[chroot]

Test 7...

$E=mc^5$

 

[chroot]

Test 8...

$E=mc^8$

 

[chroot]

Test 9...

$E=mc^9$

 

[Greg Bernhardt]

thanks warren!

 

[chroot]

Test...

$E=mc^2$

-Warren

 

[chroot]

Test:

$2^{14}$

- Warren

 

[chroot]

Test:

$2^{16}$

 

[chroot]

Test:

$2^{16}$

 

[chroot]

Test:

$2^{17}$

 

[chroot]

Test:

$2^{18}$

 

[chroot]

Test:

$2^{20}$

 

[chroot]

Test:

$2^{20} 2^{21}$

 

[chroot]

Test:

$2^{20} 2^{21}$

 

[chroot]

Another test:

$2^{20} 2^{21}$

 

[chroot]

Testing 11

$$\sum_{n=1}^{\infty}\frac{\chi(n) }{n^{s}}=\prod_{p\in\mathbb{P}}\left(\frac{1}{1-\frac{\chi(p)}{p^{s}}}\right)$$

And testing inline:

$E = mc^2 \textrm{some long junk, too}$

and

$a=b$

- Warren

 

[chroot]

Testing trim 3...

$$\sum_{n=1}^{\infty}\frac{\chi(n) }{n^{s}}=\prod_{p\in\mathbb{P}}\left(\frac{1}{1-\frac{\chi(p)}{p^{s}}}\right)$$

And testing inline: $E = mc^6$ and $a=c=m=d$

- Warren