Stiff Delay Differential Equations

Hey

Can we use dde23 solver for solving sytem of stiff delay differential equations?

I tried to find the solution of those equation by using dde 23 but MATLAB is showing 'busy' string.

[Torsten]

Just check how fast the internal time t progresses to estimate the real timespan until the problem will be solved.

[parag gupta]

Could u pls tell how to check that?

[Torsten]

By outputting "t" in ddefun during execution.

At the end of ddefun, insert the line

t

[parag gupta]

Undefined function or variable 't'.

[Torsten]

I don't know how you named the independent variable in your problem.

I mean the first argument passed to "ddefun" from dde23.