User:TortoiseWrath/such

$$10^{-7} \Biggl \lfloor 10^7 \left ( \Bigl ( \left [ x>0 \right ] - \left [ x<0 \right ] \Bigr ) \ln \Bigl ( \max \bigl \{ \left | u-d \right | ,1 \bigr \} \Bigr ) + \frac{t-1134028003}{45000} \right ) +\frac{1}{2} \Biggr \rfloor$$

$$\frac{u+d}{\left | u-d \right | +1}$$