texmath-0.6.7: tests/writers/mfracZcomp-33.tex
\mathrm{And\ this\ shows\ a\ combination\ with\ a\ background\ image\ at\ a\ desired\ opacity~}{{Z}}_{{\alpha }}\left( {f}\right) =\frac{1}{2{i}\operatorname{\,\ }{cos}\left( \frac{{\alpha }{\pi }}{2} \right) } {\int }_{{C}}\frac{{f}({i}{z}){\left( -{z}\right) }^{{\alpha }}}{{{e}}^{2{\pi }{z}}-1} {z}