2 (a) Write and submit a Matlab function implementing the RK4 method with given number of steps at https:/irkrakauer.net/sp/rk4.html dy dt (b) Use the function you wrote to find y(1) given =-y,y(0) = 1 for different n ranging from 1 to 100. Plot the absolute error as a function of n and comment how it relates to the theoretical error expression for the RK4 method