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x 1 , 2 = − b ± b 2 − 4 a c 2 a {\displaystyle x_{1,2}={\frac {-b\pm {\sqrt {\color {Red}b^{2}-4ac}}}{2a}}}
exp i sin π {\displaystyle \exp ^{i}\sin \pi }
A e R c n = A ( 1 + R m m ) m {\displaystyle Ae^{R_{c}n}=A(1+{\frac {R_{m}}{m}})^{m}} Solving for R m {\displaystyle R_{m}\,} gives: R m = m ( e R c / m − 1 ) {\displaystyle R_{m}=m(e^{R_{c}/m}-1)}
