MATLAB Mathematics - SERC - Index of

5 Differential Equations
Changing DDE Integration Properties
The default integration properties in the DDE solver dde23 are selected to
handle common problems. In some cases, you can improve solver performance
by overriding these defaults. You do this by supplying dde23 with an options
structure that specifies one or more property values.
For example, to change the relative error tolerance of dde23 from the default
value of 1e-3 to 1e-4,
1 Create an options structure using the function ddeset by entering
options = ddeset('RelTol', 1e-4);
2 Pass the options structure to dde23 as follows:
sol = dde23(ddefun,lags,history,tspan,options)
For a complete description of the available options, see the reference page for
ddeset.
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