Mathematical formulae 1 2 {\displaystyle {\frac {1}{2}}} i {\displaystyle {\sqrt {i}}}
d 2 y d x + W 2 y = o {\displaystyle {\frac {d^{2}y}{dx}}+W^{2}y=o}
T = 2 π l g {\displaystyle T=2\pi {\sqrt {\frac {l}{g}}}}
d 2 y d t 2 + 2 b d y d t + w 2 y = p s i n ( w t ) {\displaystyle {\frac {d^{2}y}{dt^{2}}}+2b{\frac {dy}{dt}}+w^{2}y=psin(wt)}
NH3 H2SO4
MnO4
∑ i = π 2 π {\displaystyle \sum _{i={\frac {\pi }{2}}}^{\pi }}
