# Displaying equations using Tex

Discussion in 'Physics & Math' started by Pete, Dec 20, 2006.

1. ### ArafuraOpalRegistered Member

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20
$\sum_{n=1}^{40} \left( \sum_{m=1}^n \left( \frac {a \sin \left( {3^{( m+(n^2-n)/2)}} \theta / b + l(\frac {2 \pi}{3}) \right) }{3^{(m+(n^2-n)/2)}} \right) \right) , l=-1,0,1$

$\sum_{n=1}^8 \left( \sum_{m=1}^n \left( \frac {a \left( \sin \left( {3^{( m+(n^2-n)/2)}} \theta / b + k(\frac { \pi}{3} ) + \cos \left( {3^{( m+(n^2-n)/2)}} \theta / b + k(\frac { \pi}{3} ) \right) \right) }{2 \times 3^{(m+(n^2-n)/2)}} \right) \right) , k=-1,1$

3. ### ArafuraOpalRegistered Member

Messages:
20
$\sum_{n=1}^{40} \left( \sum_{m=1}^n \left( \frac {a \sin \left( {3^{( m+(n^2-n)/2)}} \theta / b + l(\frac {2 \pi}{3}) \right) }{3^{(m+(n^2-n)/2)}} \right) \right) , \ l=-1,0,1$

$\sum_{n=1}^8 \left( \sum_{m=1}^n \left( \frac {a \left( \sin \left( {3^{( m+(n^2-n)/2)}} \theta / b + k(\frac { \pi}{3} ) + \cos \left( {3^{( m+(n^2-n)/2)}} \theta / b + k(\frac { \pi}{3} ) \right) \right) }{2 \times 3^{(m+(n^2-n)/2)}} \right) \right) , \ k=-1,1$

5. ### ArafuraOpalRegistered Member

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20
$\displaystyle \sum_{n=1}^8 \left( \sum_{m=1}^n \left( \frac {a \left( \sin \left( {3^{( m+(n^2-n)/2)}} \theta / b + k \times (\frac {\pi}{3} ) \right) + \cos \left( {3^{( m+(n^2-n)/2)}} \theta / b + k \times (\frac { \pi}{3} ) \right) \right) }{2 \times 3^{(m+(n^2-n)/2)}} \right) \right) , \ k=-1,1$

7. ### icarus2Registered Senior Member

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122
${U_{es - shell}} = \frac{1}{2}(\frac{1}{{4\pi {\varepsilon _0}}}\frac{{{Q^2}}}{{{R_{es}}}})$

Last edited: Apr 29, 2018

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9. ### James RJust this guy, you know?Staff Member

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34,471
fgfggh indeed.

10. ### Confused2Registered Senior Member

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593
Last edited: Jun 11, 2020
11. ### Confused2Registered Senior Member

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593
$s^{2}={v'_{x}}^{2}t'+ {v'_{y}}^{2}t' -c^{2}t'^{2}$

Last edited: Jun 11, 2020

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If anyone can help it would be appreciated. I have been trying to display an equation with Tex with no luck. I have refreshed the page and still get nothing. Do I have to create the thread to actually see if the equation is correctly expressed?

13. ### Neddy BateValued Senior Member

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2,091
In my experience, the Tex equations do not display correctly in the "preview" pane, but they do display correctly after they have been posted to a thread. You can use this thread to check your Tex equations for errors, before posting or creating a whole new thread. Sorry, but this forum software still has some bugs in it.

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$\Large \frac{1}{1-\frac{v^2}{c^2}}$

Thanks for your help Neddy Bate. I see that you have to post to see the equation displayed. The preview does not display the equation.

Last edited: Jun 28, 2020

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593
16. ### foghornRegistered Senior Member

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355
$\sqrt{ab}$

$c_a^b\sqrt[n]{ab}$