\usepackage{unicode-math} \usepackage{fontspec} \setmainfont[Mapping=tex-text]{Calibri} \setsansfont[Mapping=tex-text]{Calibri} \setmathfont{Cambria Math} \setmathfont[version=bold,FakeBold=3.5]{Cambria Math} \newcommand{\bm}{\boldsymbol}