Wide figures in two-column documents¶
Floating figures and tables ordinarily come out the same width as the page, but in two-column documents they’re restricted to the width of the column. This is sometimes not good enough; so there are alternative versions of the float environments — in two-column documents,
figure** provides a floating page-wide figure (and
table** a page-wide table) which will do the necessary.
*ed float environments can only appear at the top of a page, or on a whole page —
b float placement directives are simply ignored.