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Which is better to use align or eqnarray?
Documents like “ Obsolete packages and commands ” (“l2tabu”) address the need of up-to-date information. For instance the obsolete eqnarray environment frequently appears in questions of new LaTeX users and many people including me usually answer: don’t use eqnarray and give advice how to use the align environment of amsmath instead.
How is this package similar to eqnarray?
This package uses syntax that’s very similar to that of the (severely deprecated!) eqnarray environment while (i) avoiding all of the shortcomings of the eqnarray environment and (ii) providing some nifty enhancements, such as being able to place text (via the “x” column specifier) on the far-right-hand end of a row.
Is it safe to use eqnarray in latex?
For instance the obsolete eqnarray environment frequently appears in questions of new LaTeX users and many people including me usually answer: don’t use eqnarray and give advice how to use the align environment of amsmath instead. Here’s a summary of the problems with eqnarray: there could be problems with labels and references.
How to place equations on the left side of a document?
To place the equations on the left side for the whole document, use the option fleqn for the document class or for the amsmath package. Alternatively, to align equation arrays to the left or to the right side, you could use the flalign environment.
What does the & mean in align environment?
In align environments the & symbol doesn’t separate columns, it marks the relation symbol. The correct way would be: The second & would cause an additional align-column, that’s why there’s that space. To see it try: I’ve got a different problem with align.
What are some of the problems with eqnarray?
Here’s a summary of the problems with eqnarray: there could be problems with labels and references. Here is one small example document just to illustrate the space inconsistany problem: Compile for yourself and examine it, if you want. For a quick look here’s a screenshot of the output:
How does eqnarray set horizontal space around the operator?
eqnarray sets horizontal space around the = operator that is not consistent with the space set in other environments, such as […] or $$…$$ (it is wider). eqnarray (also eqnarray* !) has an ill-defined equation numbering, which leads to numbering errors on referencing—mostly when using the command nonumber
What’s the difference between an equation and an eqnarray?
For a quick look here’s a screenshot of the output: Notice the difference of the spacing around the equal sign in the eqnarray environment compared to equation and even compared to the other equal sign inside the first eqnarray line.
How to typeet an equation in ieeeeqnarray?
Let’s say I wish to use IEEEeqnarray to typeset an equation like the following: Obviously I can do this by manually inserting lots of spacing commands, but I would prefer to be able to do this by specifying the column alignment when the IEEEeqnarray environment is started.
How to align equations on the left side of a document?
To place the equations on the left side for the whole document, use the option fleqn for the document class or for the amsmath package. Alternatively, to align equation arrays to the left or to the right side, you could use the flalign environment. Just use an additional column separator & on the right respectively the left side.