[texhax] vertical placement of symbols

[E. Krishnan]

On Mon, 4 May 2009, Zbigniew Nitecki wrote:

> To create the symbol for composition of functions, I have the following code
>
>> \newcommand{\compose}{{\scriptstyle \circ}}% composition symbol
>> \newcommand{\comp}[2]{\ensuremath{#1\compose #2}}% composition by function 
>> name
>
> This works fine, except that the circle is not vertically centered---it is 
> too low.  How do I adjust it?

There seems to be nothing wrong with the \emph{vertical} positioning of 
the \compose, but the \emph{horizontal} spacing between the operation and 
the operands not very correct, since \compose is not defined to be a 
binary operator. The modification

   \newcommand{\compose}{%
     \mathbin{\scriptstyle \circ}}

should do the trick.

-- 
Krishnan