MATLAB toolbox¶

The usage of NLtoolbox is easy:

Intantiate the class and select the test:

ref = NLtest();

ref.select( 1 ); % select the first test.

ref.select('Discrete boundary value function neq = 50');

the list of available names can be obtained as

res = ref.listall();

After the selection of the nonlinear system you can evaluate it:

F = ref.evalF( x ); % evaluate F(x)

JF = ref.evalJF( x ); % evaluate jacobian of F(x)

P = ref.pattern(); % evaluate pasttern of the jacobian of F(x)

Some aux methods make easy to check you numerical solver for nonlinear system

N     = ref.neq()
NG    = ref.numGuess();
G     = ref.guess( n );
Ne    = ref.numExact();
E     = ref.exact( n );
[L,U] = ref.bbox();

See the API manual for details.

MATLAB API