## New LaTeX Feature

• Imagine you are sipping tea or coffee while discussing various issues with a broad and diverse network of students, colleagues, and friends brought together by the common bond of physics, graduate school, and the physics GRE.

Grant
Posts: 193
Joined: Tue May 11, 2004 7:55 pm

### New LaTeX Feature

Today I added a new LaTeX feature. I added it along side the existing bbcodes like bold, italic, underline, quote, etc. For example, typing the following gives the result shown below:

Code: Select all

$$f(x)=\int_{-\infty}^xe^{-t^2}dt$$
$$f(x)=\int_{-\infty}^xe^{-t^2}dt$$

I good resource to learn how to do LaTeX is found here:
http://en.wikipedia.org/wiki/Help:Displaying_a_formula

Also, if you right click and look at the properties of a LaTeX image on physicsgre.com you can see the code used to generate the LaTeX image.

blackcat007
Posts: 378
Joined: Wed Mar 26, 2008 9:14 am

### Re: New LaTeX Feature

Grant wrote:Today I added a new LaTeX feature. I added it along side the existing bbcodes like bold, italic, underline, quote, etc. For example, typing the following gives the result shown below:

Code: Select all

$$f(x)=\int_{-\infty}^xe^{-t^2}dt$$
$$f(x)=\int_{-\infty}^xe^{-t^2}dt$$

I good resource to learn how to do LaTeX is found here:
http://en.wikipedia.org/wiki/Help:Displaying_a_formula

Also, if you right click and look at the properties of a LaTeX image on physicsgre.com you can see the code used to generate the LaTeX image.
thats so nice

matonski
Posts: 121
Joined: Thu Dec 04, 2008 5:03 pm

### Re: New LaTeX Feature

$$\nabla \cdot \mathbf{E} &= \frac{\rho}{\epsilon_0}$$
$$\nabla \cdot \mathbf{B} &= 0$$
$$\nabla\times\mathbf{E} &= -\frac{\partial \mathbf{B}}{\partial t}$$
$$\nabla\times\mathbf{B} &= \mu_0 \mathbf{J} + \mu_0\epsilon_0\frac{\partial \mathbf{E}}{\partial t}$$

blackcat007
Posts: 378
Joined: Wed Mar 26, 2008 9:14 am

### Re: New LaTeX Feature

matonski wrote:$$\nabla \cdot \mathbf{E} &= \frac{\rho}{\epsilon_0}$$
$$\nabla \cdot \mathbf{B} &= 0$$
$$\nabla\times\mathbf{E} &= -\frac{\partial \mathbf{B}}{\partial t}$$
$$\nabla\times\mathbf{B} &= \mu_0 \mathbf{J} + \mu_0\epsilon_0\frac{\partial \mathbf{E}}{\partial t}$$
$$\[G_{\mu\nu}= 8\pi T _{\mu\nu}$$

kroner
Posts: 217
Joined: Fri Sep 25, 2009 1:58 am

### Re: New LaTeX Feature

wooooo!
$$i\hbar\frac{\partial}{\partial t}\psi = H\psi$$

quizivex
Posts: 1031
Joined: Tue Jan 09, 2007 6:13 am

### Re: New LaTeX Feature

Eh do we really need this fancy stuff? LaTeX should be reserved for "play" only. We have no hope of truly understanding physics if we can't easily decipher good old formulas written in ordinary text...

[-(hbar^2)/2m] (d2_dx2)(psi_n) + V(x) (psi_n) = E_n (psi_n)

div(E) = ro / Epsilon_0

Integral(sqrt[x]sin(x^2)exp(-gamma*x^2), x E {-pi, pi})

Lol just kidding. Thanks Grant.

pqortic
Posts: 398
Joined: Fri Aug 29, 2008 9:24 am

### Re: New LaTeX Feature

quizivex wrote:We have no hope of truly understanding physics if we can't easily decipher good old formulas written in ordinary text...

[-(hbar^2)/2m] (d2/dx2)(psi_n) + V(x) (psi_n) = E_n (psi_n)
Maybe you are right.

grae313
Posts: 2296
Joined: Tue May 29, 2007 8:46 pm

### Re: New LaTeX Feature

This is awesome, thanks Grant!

twistor
Posts: 1529
Joined: Thu Apr 13, 2006 2:47 pm

### Re: New LaTeX Feature

$$Now all my posts will be in \LaTeX.$$

modernphysics
Posts: 33
Joined: Fri Jun 11, 2010 10:50 am

### Re: New LaTeX Feature

HI all i am a new member here. But i don't know how to post question( like equation etc..) and can i answer to those problems that i know... PLease some body help me in this topic.. THis is my first post however......

grae313
Posts: 2296
Joined: Tue May 29, 2007 8:46 pm

### Re: New LaTeX Feature

modernphysics wrote:HI all i am a new member here. But i don't know how to post question( like equation etc..) and can i answer to those problems that i know... PLease some body help me in this topic.. THis is my first post however......
Feel free to answer any questions that you feel you know the answer to. As for posting equations using Latex, please use google to search for instruction on how to do this.

modernphysics
Posts: 33
Joined: Fri Jun 11, 2010 10:50 am

### Re: New LaTeX Feature

grae313 wrote:
modernphysics wrote:HI all i am a new member here. But i don't know how to post question( like equation etc..) and can i answer to those problems that i know... PLease some body help me in this topic.. THis is my first post however......
Feel free to answer any questions that you feel you know the answer to. As for posting equations using Latex, please use google to search for instruction on how to do this.
Aha Thank you buddy. Have a nice day.....