Sandbox for italic int which shall be implemented in {{intmath/int}}
subtemplate so that it can be called from {{intmath}}
to implement the idotsint
option, e.g.
{{math| H {{=}} {{intmath/sandbox|idotsint|''n''-ball}} ''dH'' }}
yields the HTML text style H = ∫
n-ball dH
{{bigmath| H {{=}} {{intmath/sandbox|idotsint|''n''-ball}} ''dH'' }}
yields the HTML display style
- H = ∫
n-ball dH