bodeplot.92g

In the world of electrical engineering transfer functions are used to help
describe how a circuts behave.  Transfer functions are related as a ratio
of polynomials in terms of s. ie   N(s)        20(s+2)
                                  -----  =  -----------
                                   D(s)     s(s+6)(s+1)

 Where s = j*w.  (For E.E.'s  j = i (the imaginary representation for
squareroot(-1) ) and w = omega = 2*Pi*frenquency.)  Transfer functions are
then plotted on a semi-log scale as frenquency vs. magnitude in dB  and
frenquency vs. phase in degrees. This program produces these graphs on a
semi-log scale and provides the information that describes the
plot.  Equations entered in this program must be in terms of s !!
Also be aware that this program will overwrite the functions y1(x)
through yn(x) depending on the complexity of the transfer function
to be plotted Included with this group is a function called RptRoot.
RptRoot finds all of the zeros of a polynomial, Including the repeated
zeros.  Arguments are passed to RptRoot the same as they are passed for
cZeros.   RptRoot(expression,var)

Please send Questions and Comments to:
Clif Burnes
gt0370b@prism.gatech.edu