Verify the curves plotted in Figures 8.14 and 8.15 for the fractional gain and phase errors based on explicit Euler integration by using the MATLAB functions “real,” “imag,” “abs,” and “angle,” that...

Verify the curves plotted in Figures 8.14 and 8.15 for the fractional gain and phase errors based on explicit Euler integration by using the MATLAB functions “real,” “imag,” “abs,” and “angle,” that is,