increase vertical spacing in align* environment

[Richard K. Oliver]

In the Latex \begin{align*} ... \end{align*} environment, I wish to increase
slightly the vertical space between equations, because the equations in
question involve binomial coefficients and large fractions, and are too
crowded. If I put 4 backslashes \\\\ after each equation, I get too much
vertical space. I have tried putting \addtolength{\belowdisplayskip}{5mm}
in the preamble or in the same frame (I am using beamer), but this had no
effect. I also tried \renewcommand{\arraystretch}{2.0}, but this had no
effect either.

Is there some way to change--preferably temporarily--the parameter of the
align* environment that controls vertical spacing between equations?

[Enrico Gregorio]

Use \\[<dimension>]

Ciao
Enrico

[buyoni...@bluebottle.com]

I can think of two ways to control vertical spacing.:

1.
Something like \vspace{0.5\baselineskip}. You'd need to
experiment to see what ratio works for you. You can also fall
back on something like \vspace{6pt}. This assumes that vspace is
effective within the align environment.

2.
My preamble contains

\renewcommand{\baselinestretch}{1.3}

and my first command after the document begins is

\large

Subsequently, if I want to increase space between lines I'll:

\renewcommand{\baselinestretch}{1.8}
large

%lines that need extra space
...

%restore my normal baseline stretch
\renewcommand{\baselinestretch}{1.3}
large

The \baselinestretch command isn't triggered until the font
changes, which is why I always follow it with the (redundant)
\large.

I typically change it to between 1.8 and 2.3. I suppose that you
could also make it a ratio off of the default baselineskip.

[emrese...@gmail.com]

I agree

Using \\[2mm] in one line and \\[3mm] in another will allow you to see
how much space you need.

Emre Sermutlu