`ddeget`

Reads a named option from a delay differential equation options structure.

Category: Mathematics > Numerical Integration and Differential Equations

Syntax

val = ddeget(options, 'name')

Returns the value of the option, or [] if it is not set.

val = ddeget(options, 'name', default)

Returns default when the option is empty.

Description

The delay solvers use ddeget to read their settings, applying defaults for options left empty. In your own code it is useful when writing a function that accepts an options structure and needs a fallback value.

Input arguments

options: Structure created by ddeset.
'name': Option name, such as 'RelTol'.
default: Value to return if the option is empty.

Output arguments

val: The option value.

Example

Reading with a default

opts = ddeset('RelTol', 1e-5);
ddeget(opts, 'RelTol')
ddeget(opts, 'AbsTol', 1e-9)

Output

ans = 1.0000e-05
ans = 1.0000e-09

ddeget