Quoting Stepan Roucka
Thanks, with \startalign[n=1] the formulas don't overlap anymore, but they are still too close. Here is test example:
\setupoutput[pdftex] \enableregime[utf] \setupindenting[yes,medium]
\starttext
\startformula\startalign[n=1] 2I_{\rm d} = I_{\rm e}^0 \left[\exp\left({-qU\over k_{\rm B}T_{\rm e}}\right)-1\right]+I_{\rm i1}-I_{\rm i2} \stopalign\stopformula
\placeformula[eq:debye] \startformula\startalign[n=1] \lambda_{\rm D} = \sqrt{\epsilon_0 k_{\rm B}T_{\rm e}\over nq_{\rm e}^2} \stopalign\stopformula \stoptext
What I meant was \setupoutput[pdftex] \enableregime[utf] \setupindenting[yes,medium] \starttext \placeformula \startformula\startalign[n=1] \NC 2I_{\rm d} = I_{\rm e}^0 \left[ \exp\left({-qU\over k_{\rm B} T_{\rm e}}\right) -1 \right] + I_{\rm i1}-I_{\rm i2} \NR \NC \lambda_{\rm D} = \sqrt{\epsilon_0 k_{\rm B}T_{\rm e} \over nq_{\rm e}^2} \NR[eq:debye] \stopalign\stopformula or better \placeformula \startformula\startalign[n=2] \NC 2I_{\rm d} \EQ I_{\rm e}^0 \left[ \exp\left({-qU\over k_{\rm B} T_{\rm e}}\right) -1 \right] + I_{\rm i1}-I_{\rm i2} \NR \NC \lambda_{\rm D} \EQ \sqrt{\epsilon_0 k_{\rm B}T_{\rm e} \over nq_{\rm e}^2} \NR[eq:debye] \stopalign\stopformula \stoptext If you feel that some formulas are too close, you can add \noalign{\vskip 1ex} between lines. Otherwise, if you want all multi-line formulas to be more spread out, change \def\displayopenupvalue{0.25\bodyfontsize} to something other than .25. \displayopenup value is equivalent to \jot in plain tex. Aditya