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N=13; for i=1:N for j=1:N C(i,j)=inf; end end for i=1:N C(i,i)=0; end C(1,2)=6.0;C(1,13)=12.9; C(2,3)=5.9;C(2,4)=10.3; C(3,4)=12.2;C(3,5)=17.6; C(4,13)=8.8;C(4,7)=7.4;

/* N O T E S - to be removed before release executable l:\projects\libwww\www\linemode\pics\windows\windebug\wwwpics.exe working dir l:\projects\libwww\www\library\implementation\windows\windebug args

N = [0.1; 0.8; -0.7]; A = logsig(N) dA_dN = dlogsig(N,A)

n = -5:0.1:5;%以0.1为步长，建立一个数组 a = hardlim(n); b = hardlims(n); plot(n,a,'bo'); hold on plot(n,b,'r.'); hold on

n=30; f=[0 0.4 0.5 1]; a=[1 1 0 0]; b=firls(n,f,a); [h,w]=freqz(b); bb=remez(n,f,a); [hh,w]=freqz(bb); axes('position',[0.2 0.2 0.5 0.5]); plot(w/pi,abs(h),'b-',w/pi,abs(hh),'r--'); xlabel('f

<mark>N</mark>=12;%序列长度 <mark>n</mark>=0:<mark>N</mark>-1;%时域取样 x<mark>n</mark>=cos(pi*<mark>n</mark>/6);%产生序列 k=0:<mark>N</mark>-1;%频域取样 w<mark>n</mark>=exp(-j*2*pi/<mark>N</mark>); <mark>n</mark>k=<mark>n</mark>'*k; w<mark>n</mark><mark>n</mark>k=w<mark>n</mark>.^<mark>n</mark>k; xk=x<mark>n</mark>*w<mark>n</mark><mark>n</mark>k %计算DFT figure(1)%画图 stem(<mark>n</mark>,x<mark> ...

<mark>N</mark>=12;%序列长度 <mark>n</mark>=0:<mark>N</mark>-1; k=0:<mark>N</mark>-1; w<mark>n</mark>=exp(-j*2*pi/<mark>N</mark>); <mark>n</mark>k=<mark>n</mark>'*k; w<mark>n</mark><mark>n</mark>k=w<mark>n</mark>.^(-<mark>n</mark>k); x<mark>n</mark>=(xk*w<mark>n</mark><mark>n</mark>k)/<mark>N</mark>;%计算IDFT figure(1)%画图 stem(k,abs(xk)) figure(2) stem(<mark>n</mark>,real(x<mark>n</mark>)) ...

\N 10 \N 15

,\N,NULL,, 00,0,000000,, 2003-03-03, 20030303,030303,\N

n = 4; sz=2*ones(1,n); subs=ind2subv(sz, 1:2^n); T = 2; tic for t=1:T ndxm = subv2ind(sz, subs); end toc if 0 tic for t=1:T ndxc = subv2ind_c(sz, subs); end toc isequal(ndxm, ndxc) isequal(ndxm