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function [A0,A,B]=FZZ(func,T, n) syms t; func = subs(sym(func), findsym(sym(func)),sym('t')); A0=int(sym(func),t,-T/2,T/2)/T; for(k=1:n) A(k)=int(func*cos(2*pi*k*t/T), t,-T/2,T/2)*2/T; A

function ex1001() subplot(1,2,1),fplot('sin(x)/(pi*x)', [-3*pi,3*pi]); title('时域图') hold on; subplot(1,2,2),fplot('-heaviside(x-1)+heaviside(x+1)',[-3,3]); title('傅氏变换后的频域图'); axis([-3 3 0 1.5])

%---------------------------------------------------------------------------- % exa060603.m, for example 6.6.3; % To design IIR Butteworth bandstop DF by analog-lowpass, % -------------------------

%----------------------------------------------------------------- % exa011004_sinc.m, for example 1.10.4 % to generate the sinc function. % 产生一 sinc 函数； %-----------------------

%------------------------------------------------------------------------ % exa050501.m, for example 5.5.1 and fig5.5.1 % to explain the spectra factorization %------------------------------------

%----------------------------------------------------------------------------- % exa060701_3.m , for example 6.7.1 and 6.5.1 % to test butter.m %---------------------------------------------------

%----------------------------------------------------------------------------- % exa060701_2.m , for example 6.7.1 and 6.5.1 % to test buttord,lp2lp,bilinear ; % to design Low-pass DF with s=2/Ts[(

%------------------------------------------------------------------------ % exa100800_corrcoef.m, % to test corrcoef.m ; %------------------------------------------------------------------------

#include #include #include #include "msp.h" void mdefir1(int l,int iband,float fl,float fh,float fs,int iwindow, float b[],float w[],int *ierror) { /*-------------

% Appendix F: MATLAB Basics, Section F.3, p. 823-827. % % The MATLAB use of matrices described in Section F.3 % includes Figures F.12 - F.17. After each subtopic, a % pause is inserted to