LaTeX I need a LaTeX workaround for the array function

[benorin]

I'm currently writing an Insight article and the TeX interpreter for this doesn't process the array function, it just dumps code for it whenever it appears. I make extensive use of the array function in the paper I'm converting to be an Insight. Is there a workaround you know of for this? I was mostly using array to align my long chains of equalities but for the moment I've just replaced the array with dbl $ code tags and it is functional but the alignment is off still, (they don't line up at the '=' sign). For matrices and binomial coefficients I have just done component form and alternate notation. I'm ok with how it displays but I want it to be perfect. Thanks for your time,
-Ben

 

[jedishrfu]

Tex stackexchange has something on how to fix alignment

https://tex.stackexchange.com/questions/349250/function-with-cases-or-array

 

[benorin]

Thank you

 

[fresh_42]

I normally use $\text{ \begin{align*} && \ \ &&\ \ && \end{align*}}$ which is fine,
Otherwise have a look at
https://www.physicsforums.com/help/latexhelp/

 

[Ibix]

I usually use:

\begin{eqnarray*}
F & = & ma \\
& = & \frac{GMm}{r^2}
\end{eqnarray*}

Looks like this:$$\begin{eqnarray*} F & = & ma \\ & = & \frac{GMm}{r^2} \end{eqnarray*} $$

Today I learned that you apparently don't need the dollar signs around a LaTeX environment like eqnarray* - it gets interpreted anyway. Hence the CODE tags...

 

[vanhees71]

I'm currently writing an Insight article and the TeX interpreter for this doesn't process the array function, it just dumps code for it whenever it appears. I make extensive use of the array function in the paper I'm converting to be an Insight. Is there a workaround you know of for this? I was mostly using array to align my long chains of equalities but for the moment I've just replaced the array with dbl $ code tags and it is functional but the alignment is off still, (they don't line up at the '=' sign). For matrices and binomial coefficients I have just done component form and alternate notation. I'm ok with how it displays but I want it to be perfect. Thanks for your time,
-Ben

It's better to use the environments of amsmath. AFAIK they all work in the forums and the Insights.

 

[benorin]

@vanhees71 I originally wrote the paper using MS Office 365 > Word and MathType (which is a handy GUI interface for math typesetting with assignable hot-keys for your favorite symbols or macros or expressions, etc) and I can export LaTeX, but I did so using the MathJax library because I assumed the Insights blog editor would naturally use the same MathJax that this forum uses. But evidently I was wrong. I know how to typeset for forums, at least enough to cover most calculus needs but LaTeX is not something I'm well-versed in. There be other libraries I can use to export my paper, which of those would be the correct one for Insights blog editor? (I can't list them all, too many).

 

[benorin]

@Ibix forgive my cluelessness please, but I must ask how exactly do I get this eqnarray* to work in the Insights editor? I've tried a variety of ways and they result in not what is shown here

 

[fresh_42]

Input:

Output:

Conclusion:

1.) A manual carriage return leads to an unformatted / not interpreted output. So they must be avoided. Just type everything in a row and let the system perform the carriage returns.

2.) eqnarray* and align* lead to the same output. The first should be used for multiple tabulators per line, the second is sufficient for equations as in the example.

 

[Greg Bernhardt]

I assumed the Insights blog editor would naturally use the same MathJax that this forum uses. But evidently I was wrong.

It is the same, perhaps wordpress does something a little funny to mess with MathJax a little, I don't know

 

[benorin]

I got it now. Thank you all who replied. It was the carriage return thing.