Various methodologies have been proposed for behavioral
modeling of analog circuits and can be distinguished depending
on their accuracy and generation of high qualitative insight
in the small-signal characteristics of a circuit [3]. Usually,
several symbolic analysis methods to model the MOST in its.
more complex form, later. simplification before,, during and:
after generation techniques are used to approach the small-signal
characteristics of network functions [Z], [7]. Contrarily,
the proposed method, first to model the MOST in its more
abstract form and after models more complete are built