Last Update: 2/3/2015
Typically, the standard form of the single exponential decay function is
where is the initial population, is the decay constant, and is time. In this case the formula for is .
In Origin's case, one of its single exponential decay equations (ExpDecay1) is described as:
Suppose . The equation then becomes . If the equations are then set equal to each other and solved for one finds that . Since this is the case, the equation for a half-life becomes