the basic equation of modeling radioactive decay is where the amount of the radioactive substance is at time and is the decay rate.
Some radioactive substances decay into other radioactive substances, which decay in turn. For example, Strontium 92( ) decays into Yttrium 92 ( ), which
decays into Zirconium. Write a pair of differential equations for Strontium and Yttrium to
describe what’s happening. Starting at with atoms of Strontium 92 and none of
Yttrium, use the Runge-Kutta method to solve the equations up to in steps of
. Use Euler’s method for the same problem, and compare your results. Solve the same
problem using Matlab.