semi-log scaled plot
hdl = semilogx(X,Y)
1 by n or m by n matrix
Handle of the created Polyline entity
SEMILOGX(...) is the same as PLOT(...), except a logarithmic (base 10) scale is used for the X-axis.
w=logspace(-2,2,200); s=%i*w; g=1../(s.^2+0.01*s+1); semilogx(w,abs(g));