How to use sens_sys()

I want to use the sens_sys() to perform the sensitivity analysis on a differential equation, but do not know how to input the odefile, ie, the format it should be in. Kindly help me out.

This is what I input:

[x W dWdk]=sens_sys(C:\Users\HP\Documents\MATLAB\Test1.m,xspan,W0,k)

and the error message I am getting is:

[x W dWdk]=sens_sys(C:\Users\HP\Documents\MATLAB\Test1.m,xspan,W0,k)

↑

Invalid use of operator.

Answer 1

[Walter Roberson]

[x W dWdk]=sens_sys('C:\Users\HP\Documents\MATLAB\Test1.m',xspan,W0,k)

It would be unusual for a function like that to take the name of an .m file as a parameter, instead of a handle to a function or a data array (or data file), but not impossible.

sen_sys does not appear to be a Mathworks routine, and instead appears to be part of https://ndltd.ncl.edu.tw/cgi-bin/gs32/gsweb.cgi/login?o=dnclcdr&s=id=%22095NTUS5063058%22.&searchmode=basic . I do not find a copy of the source code at the moment, and the above site does not happen to include the page where the function is described.

[Aditya Goel]

I referred to https://www.mathworks.com/matlabcentral/fileexchange/1480-sensitivity-analysis-for-odes-and-daes for using this function while doing the sensitivity analysis.

[Walter Roberson]

addpath('C:\Users\HP\Documents\MATLAB')

[x, W, dWdk] = sens_sys(@Test1, xspan, W0, k);

[Aditya Goel]

Thank you!!