# Questions tagged [eqnarray]

the math display environment from LaTeX with alignment points. Do not use this tag for the eqnarray package.

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### What is the recent change to eqnarray for?

Looking at the PDF of the current LaTeX source, I noticed that very recently (2021-10-14, I believe), the standard definition of the eqnarray environment was changed to "explicitly set \@...
179 views

### Equation is floating in two columns and in equation array package

I'm sorry for such a basic question, however, I'm asking because I'm quite close to the deadline. So, my equations are floating on 2nd column based on the below MWE, I was trying to compress it ...
55 views

### Aligning two equations (one split and another non-split)

I have the below two equations, \begin{eqnarray} \begin{split} C_{N+1} &= h\left( X_{N+1}; \hat{\phi}_{N+1} \right) + \left[ h\left( X_{N+1}; \phi_{N+1} \right) - h\left( X_{N+1}; \hat{\phi}_{N+1}...
1 vote
69 views

512 views

### Latex ((Missing number, treated as zero. <to be read again>)) [duplicate]

\begin{eqnarray*} % \nonumber % Remove numbering (before each equation) (a, b) &=& \{ x \in X | a < x < b \} \\ (a, b] &=& \{ x \in X | a < x \leq b \} \\ [a, b) ...
1k views

### Substitute for eqnarray?

Firstly, sorry for my english level, I'm French. Secondly, I've read eqnarray environment becomes obsolete, and we have to replace this by align. Ok, but it's not satisfying for me. I explain : \...
1 vote
292 views

### Difference between eqnarray and eqnarray* [duplicate]

What is the difference between environments eqnarray and eqnarray* in a LaTeX input document?
495 views

### Multi-line long equation vanishes few brackets

\begin{eqnarray*} M \to {P_j}:{} & \left\{ {{{\left( {{n_1},{n_2},{{\left( {profile,{N_i},{N_i}\left( {\mathop \leftrightarrow \limits^{K_S^i} } \right){P_j},\\ & \# \left( {{N_i}\left( {\...
1 vote
172 views

### How to make \begin{align} looks like \begin{eqnarray}

I trying to align a programming model using eqnarray but the command \tag do not work with it, I could use align instead but the alignment is right for the first column and left for the second column. ...