Hi, I am trying to duplicate what you were doing in my own program. When I type the code above, I get an error "Error, invalid input: writedata[Append] expects its2nd argument, Data, to be of type {set, matrix, hfarray, list, array(1), list(list}, but received soln1[2,1]" My solution is named soln1. I am wondering if you can tell me if you received this error. Or, how do I change my data to something it likes. I am solving a system of three differential equations, and want to see the results in a spread sheet over time. Thanks! Regards, Steve

Hi, I am trying to duplicate what you were doing in my own program. When I type the code above, I get an error "Error, invalid input: writedata[Append] expects its2nd argument, Data, to be of type {set, matrix, hfarray, list, array(1), list(list}, but received soln1[2,1]" My solution is named soln1. I am wondering if you can tell me if you received this error. Or, how do I change my data to something it likes. I am solving a system of three differential equations, and want to see the results in a spread sheet over time. Thanks! Regards, Steve

Hi all, Concering my question above, what if I want more than one of my dependent variables to have bounds? For example, B(t) and N(t)? And what if the dependent variable doesn't actually show up in the ode? I want 1000<=N(t)<=7000 and 0