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Delay Differential Equations

Delay differential equation initial value problem solvers

Functions

dde23 Solve delay differential equations (DDEs) with constant delays
ddesd Solve delay differential equations (DDEs) with general delays
ddensd Solve delay differential equations (DDEs) of neutral type
ddeget Extract properties from delay differential equations options structure
ddeset Create or alter delay differential equations options structure
deval Evaluate differential equation solution structure

Examples and How To

DDE with Constant Delays

This example shows how to use dde23 to solve a system of DDEs with constant delays.

State-Dependent Delay Problem

This example shows how to use ddesd to solve a system of two DDEs with a state-dependent delay.

Cardiovascular Model with Discontinuities

This example shows how to use dde23 to solve a cardiovascular model that has a discontinuous derivative.

DDE of Neutral Type

This example shows how to use ddensd to solve a neutral DDE.

Initial Value DDE of Neutral Type

This example shows how to use ddensd to solve an initial value DDE.

Concepts

Types of DDEs

Solve delay differential equations.

Discontinuities in DDEs

Communicate discontinuities to the solver using an options structure.

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