TeX Quellcode:

{\log_2\left(\frac{a}{0{,}5}\right) = \log_2(a)-\log_2(0{,}5) = \log_2(a)-\log_2\left(\frac{1}{2}\right) = \log_2(a)-\log_2\left(2^{-1}\right) = \log_2(a)-(-1) = \log_2(a)+1}