Y0 offset A amplitude t time constant Lower Bounds. Tau is the time constant expressed in the same units as the X axis. F x A e k x 5 e ln 2 ln 5 4 3 e 0.
12 times 10 to the minus 4 times the amount of time that has passed by.
The half-life is the time after which half of the original population has decayed. The decay rate r is a negative number r 0 where b 1 r so that r b 1 In general the domain of exponential functions is the set of all real numbers. Time scale of relaxation. P 0 initial amount at time t 0.