\usetypescriptfile[type-xits] \usetypescript[xits] \setupbodyfont[xits] \setuplayout[header=0pt,footer=0pt] \setupformulas[spaceafter={2*big}] \starttext \midaligned{$\bfd\frak XITS\ Math$}\blank[4*big] \startformula \pi(n) = \sum^{n}_{m=2}\left\lfloor\biggl(\sum^{m-1}_{k=1}\bigl\lfloor(m/k)\big/\lceil m/k\rceil\bigr\rfloor\biggr)^{-1}\right\rfloor \stopformula \startformula \pi(n) = \sum^{n}_{k=2}\left\lfloor\phi(k) \over k-1\right\rfloor \stopformula \startformula 1+\left(1\over1-x^2\right)^3 \stopformula \startformula 1+\left(1\over1-{{{x^2}\over{y^3}}\over{z^4}}\right)^3 \stopformula \startformula {a+1\over b}\bigg/{c+1\over d} \stopformula \startformula \biggl({\partial^{2} \over \partial x^{2}} + {\partial^{2} \over \partial y^{2}}\biggr) {\bigl\vert\phi(x+iy)\bigr\vert}^2 \stopformula \startformula \sum_{\scriptstyle0\le i\le m\atop\scriptstyle0