[OS X TeX] multi lines

Alain Schremmer Schremmer.Alain at verizon.net
Wed Aug 31 18:07:28 EDT 2005

Maarten Sneep wrote:

> \begin{equation*}
> \begin{split}
>     \int_a^b \biggl\{ \int_a^b &[ f(x)^2 g(y)^2 + f(y)^2 g(x)^2 ]
>         -2f(x) g(x) f(y) g(y) \,dx \biggr\} \,dy \\
>     &=\int_a^b \biggl\{ g(y)^2 \int_a^b f^2 + f(y)^2
>         \int_a^b g^2 - 2f(y) g(y) \int_a^b fg \biggr\} \,dy \\
>     &=\int_a^b \biggl\{ g(y)^2 \int_a^b f^2 + f(y)^2
>         \int_a^b g^2 - 2f(y) g(y) \int_a^b fg \biggr\} \,dy
> \end{split}
> \end{equation*}

> Note the extra ampersand I plunked in the middle (well the start) of  
> the first line.

It does make all the difference and I sure would never have thought of 
it. But why didn't my hspaces work the way Font's did?

Most grateful regards to all who felt for my woe.

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