Plain latex code not working in Physics forum

[Pushoam]

I have written a solution of problem in LYX.
I exported the lyx code as latex plain code.
I opened the latex plain code in Tex studio and copied it and pasted it in Physics forum
and it didn't work.
Can anyone please tell me what should I do?
Should I again type the latex code here i.e.Physics Forum?
I am attaching the Latex code and corresponding pdf.

The tex file is not accepted here.So, attaching images.

 

[Dale]

I never used lyx, but LaTeX code generated by mathematica works fine here if I just enclose it in double $'s

https://www.physicsforums.com/help/latexhelp/

 

[jedishrfu]

Have you looked at the first thread in the Math and Latex forum? It should explain what you need to do.

Usually we must use double # or double $ before and after each expression so that mathjax can identify it.

 

[jtbell]

I don't think MathJax supports LaTeX commands that are associated with creating complete documents: \documentclass, \usepackage, etc. (which I see in your screenshots but are not in the list of supported commands:

http://docs.mathjax.org/en/latest/tex.html#supported-latex-commands

MathJax is intended for including individual equations in HTML pages, not for producing/presenting complete LaTeX documents.

 

[Buffu]

I don't think MathJax supports LaTeX commands that are associated with creating complete documents: \documentclass, \usepackage, etc. (which I see in your screenshots but are not in the list of supported commands:

http://docs.mathjax.org/en/latest/tex.html#supported-latex-commands

MathJax is intended for including individual equations in HTML pages, not for producing/presenting complete LaTeX documents.

$\require{cancel}\cancel{ \text{Buffu} }$ I am no expert but I can use cancel package by using command $\text{\require}$.

 

[jedishrfu]

Wow! That's one way of banning yourself in text with a flair while not really banning yourself from PF.

Pretty cool, I didn't notice that tag before. I guess you'd use it to cancel terms and factors.

 

[Buffu]

Wow! That's one way of banning yourself in text with a flair while not really banning yourself from PF.

Pretty cool, I didn't notice that tag before. I guess you'd use it to cancel terms and factors.

'
I did not know strikeout means banned from PF.