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.

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Just check how fast the internal time t progresses to estimate the real timespan until the problem will be solved.
Could u pls tell how to check that?
Torsten
Torsten 2019-4-18
编辑:Torsten 2019-4-18
By outputting "t" in ddefun during execution.
At the end of ddefun, insert the line
t
Undefined function or variable 't'.
I don't know how you named the independent variable in your problem.
I mean the first argument passed to "ddefun" from dde23.

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2019-4-18

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