User`s guide

1 Overview of S-Functions

1-16

mixedmex.c

Implements a hybrid dynamical system with a

single output and two inputs.

quantize.c

An example MEX-file for a vectorized quantizer

block. Quantizes the input into steps as specified by

the quantization interval parameter,

resetint.c

A reset integrator.

sftable2.c

A two-dimensional t able lookup in S-function form.

sfun_dynsize.c

A simple example of how to size outputs of an

S-function dynamically.

sfun_errhndl.c

A simple example of how t o check para meters using

the

mdlCheckParams S-function routine.

sfun_fcncall.c

An example of an S-function that is configured to

execute function-call subsystems on the first and

third o utput element.

sfun_multiport.c

Anexample ofan S-functionthat hasmultipleinput

and output ports.

sfun_multirate.c

An exampleof an S-functiont hat demonstrateshow

to specify port-based sample times.

sfun_zc.c

An example of an S-function that has nonsampled

zero crossings to implement

abs(u).This

S-function is designed to be used with a variable

step solver.

sfun_zc_sat.c

Saturation example that uses zero crossings.

sfunmem.c

A one integration-step delay and hold “memory”

function.

vdpm.c

Implements the van der Pol equation.

Table 1-3: Example C MEX S-Functions (Continued)

Filename Description