Thread: diagram

Hi . can you help me?
I can't draw it:


who can help me? thanks

If you need help with a question to do with this, you can just post the picture you've drawn.

Or do you need to know the LaTeX code for some other purpose?

Originally Posted by Prove It

If you need help with a question to do with this, you can just post the picture you've drawn.

Or do you need to know the LaTeX code for some other purpose?

I can't write LaTeX code for it
i need latex code

This diagram is too complex for me to write it in full. You can start with the following TikZ code.

Code:

\usetikzlibrary{positioning,arrows}

\begin{tikzpicture}[auto,>=stealth']
\node (N1) {$\llap{$\tilde e:{}$}N_1 \times N_r$};
\node[right=of N1] (L1) {$\tilde L$};
\node[above=of N1] (N) {$\llap{$e_r:{}$}N_r$};
\node[above=of L1] (L) {$L_r$};
\draw[->>] (N1) -- node[swap] {$\sigma_r$} (N);
\draw[->>] (L1) -- node[swap] {$\tau_r$} (L);
\draw[to reversed->] (N) -- node {$\chi_r$} (L);
\draw[to reversed->] (N1) -- (L1);
\path[use as bounding box] (-1.3,0) rectangle (0,0); % adds to the bounding box to include \tilde e: from node N1
\end{tikzpicture}

Originally Posted by emakarov

This diagram is too complex for me to write it in full. You can start with the following TikZ code.

Code:

\usetikzlibrary{positioning,arrows}

\begin{tikzpicture}[auto,>=stealth']
\node (N1) {$\llap{$\tilde e:{}$}N_1 \times N_r$};
\node[right=of N1] (L1) {$\tilde L$};
\node[above=of N1] (N) {$\llap{$e_r:{}$}N_r$};
\node[above=of L1] (L) {$L_r$};
\draw[->>] (N1) -- node[swap] {$\sigma_r$} (N);
\draw[->>] (L1) -- node[swap] {$\tau_r$} (L);
\draw[to reversed->] (N) -- node {$\chi_r$} (L);
\draw[to reversed->] (N1) -- (L1);
\path[use as bounding box] (-1.3,0) rectangle (0,0); % adds to the bounding box to include \tilde e: from node N1
\end{tikzpicture}

thanks a lot my freind. now i underestand some thing.
but please say to me, how draw it:

Code:

\usetikzlibrary{arrows,positioning}
\begin{tikzpicture}[>=stealth',auto]
\node (top) {$\llap{$\tilde e:{}$}N_1\times N_2$};
\node[below=1.5cm of top] (mid) {$\llap{$e_1\times A:{}$}N_1\times A$};
\node[below=1.5cm of mid] (bot) {};
\draw[stealth' reversed->] (top) -- node {$\sigma$} (mid);
\draw[->>] (mid) -- node {$\mathsf{nat}'$} (bot);
\path (top) edge[->,dashed,bend right] (bot);
%or: \draw[->,dashed] (top) to[bend right] (bot);
\path[use as bounding box] (-2,0) -- (0,0);
\end{tikzpicture}