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How to change the mathematical symbol class of a unicode math symbol?

How to change the mathematical symbol class of a unicode math symbol?

February 22Hits:3

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In unicode-math-table.tex the math class of many symbols is defined by lines like:

\UnicodeMathSymbol{"026AC}{\mdsmwhtcircle}{\mathord}{medium small white circle}%

Now if I want to use this particular circle as binary operator for function composition I have to change its math class to \mathbin. What I would like to do in the preamble is something like:

\usepackage{unicode-math}% \UnicodeMathSymbol{"026AC}{\mdsmwhtcircle}{\mathbin}{medium small white circle}%`

Thereby overwriting unicode-math’s defaults. However the marco \UnicodeMathSymbol seems only to be available internally, when unicode-math processes unicode-math-table.tex.

Of course I can copy unicode-math-table.tex to a local texmf-tree, modify it and achieve the desired result. But I would prefer to keep this change local to the document and make the change in the preamble.

How can I overwrite unicode-math’s defaults with regard to the symbols math class?

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