General ⇒ Math formatting help

[ouroborus]

Any idea how I can format this:

Code: Select all

\[N_{n,k}\triangleq
\left\{{\left.{\left[X_0,X_1,\cdots,X_{k-2},S+\sum_{i=0}^{k-2}X_i\right]}\right|}
{[b_0, b_1, \cdots, b_{k-1}]
\in N_k^{\prime 0}\cup N_k^{\prime 1},X_i\in X_n^{b_i},
0\leq i<k-1,S\in N_n^p,p=\sum_{i=0}^{k-1}b_i}\right\}.\]

so that it'll look something like this:

[ouroborus]

Nm, I think I got it:

Code: Select all

\begin{align*}N_{n,k}\triangleq \left\{\vphantom{\sum_0^0}\right. & 
\left.{\left[X_0,X_1,\cdots,X_{k-2},S+\sum_{i=0}^{k-2}X_i\right]}\right|\\
& [b_0, b_1, \cdots, b_{k-1}]
\in N_k^{\prime 0}\cup N_k^{\prime 1},X_i\in X_n^{b_i},\\
& 0\leq i<k-1,S\in N_n^p,\left.p=\sum_{i=0}^{k-1}b_i\right\}.\end{align*}

[Juanjo]

A slightly different approach:

Code: Select all

\begin{align*}
   N_{n,k}\triangleq
   \Biggl\{ &\bigg[ X_0,X_1,\ldots,X_{k-2},S+\sum_{i=0}^{k-2}X_i\biggr]
   \Biggm| \Biggr. \\
   &\,[b_0, b_1,\ldots, b_{k-1}]\in N_k^{\prime 0}\cup N_k^{\prime 1},
   \ X_i\in X_n^{b_i}, \\
   \Biggl. &\, 0\leq i<k-1,\ S\in N_n^p,\ p=\sum_{i=0}^{k-1}b_i \Biggr\}.
\end{align*}

Please note that centered dots (\cdots) should mark ellipsis between binary relations or operators, not in enumerations. I've also added some spaces and removed some superfluous braces.

[daleif]

you can safely remove those \Biggr. anf Biggl. as well, it is only \left and \right that comes in pairs, the rest works fine on their own.

[hzmonte]

How can I get the double quotes displayed in $\mathtt{``whatever''}$ ? This generates an error.
And how to make 2 consecutive plus signs ++ smaller and closer to each other, inside \mathtt{}? I know \! means negative space = -3/18 of a quad but it does not work inside \mathtt{}.

[Juanjo]

Code: Select all

$0\times\texttt{``whatever C{\small ++}''}=0$

Do you really need to write those weird things in math mode? Sure?

[hzmonte]

Thanks. Yes. I use it to format computer code written in the C language, e.g.

Code: Select all

i = j++;
printf("%d\n", i);

++ is an increment operator and two consecutive plus signs in normal size look ugly.

[gmedina]

Hi,

if you want to typeset programming code, the listings package could be useful.

[gozzi84]

How can I change the fonts for a math equation? I mean in a single frame I want to insert a math equation with the same font of the entire beamer document and another with a smaller font.

I tried with this but it doesn't work.

\[
\mathnormal{QA}_{j}(s,t_{j})=\frac{P_d (s,t_j)}{P_f (s,t_{j})}\rho_{j}(s,t_{j})} % standard font
\]

\[
\tiny{\widehat{S}_{f}(s,t_{j-1})=\frac{S_f (s)}{P_f (s,t_{j-1})}} %smaller font
\]

Thank you for your help

[daleif]

might be a better idea to open a new thread instead of highjacking a thread