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clear clc subplot(2,2,1), fplot('humps',[0 1]) subplot(2,2,2), fplot('abs(exp(-j*x*(0:9))*ones(10,1))',[0 2*pi]) subplot(2,2,3), fplot('[tan(x),sin(x),cos(x)]',2*pi*[-1 1 -1 1]) subplot(2,2,4), f

clear; runtime=1; %snr=[0.5,0.75,1.0,1.25,1.5]; %runtime=[100,100,100,200,1000]; q=4; BITN=1024; N=q*BITN; EbNo=2; %dB rate=1/q; amp=1/sqrt(10.^(EbNo/10)*2*rate*2); %The Last *2 is due to

syms x; f=abs(x)/x; % 定义方波信号 xx=[-pi:pi/200:pi]; xx=xx(xx~=0); xx=sort([xx,-eps,eps]); % 剔除零点 yy=subs(f,x,xx); plot(xx,yy), hold on % 绘制出理论值并保持坐标系 for n=2:20 [a,b,f1]=fseries(f,x,n), y1=subs

i=sym(sqrt(-1)); syms z f=1/((z+i)^10*(z-1)*(z-3)); % 定义被积函数 r1=limit(diff(f*(z+i)^10,z,9)/prod(1:9),z,-i); r2=limit(f*(z-1),z,1); a=2*pi*i*(r1+r2) a+pi*i/(3+i)^10 r3=limit(f*(z-3),z,3); b=

x0=[0,0.4,1 2,pi]; y0=sin(x0); sp=csapi(x0,y0), fnplt(sp,':'); hold on, ezplot('sin(t)',[0,pi]); plot(x0,y0,'o') sp.coefs

syms t; f=t*(t-pi)*(t-2*pi); [A,B,F]=fseries(f,t,12,0,2*pi); ezplot(f,[0,2*pi]); hold on; ezplot(F,[0,2*pi]) F1=fdiffint(A,B,t,0.25,0,2*pi); ezplot(F1,[0,pi]); hold on F1=fdiffint(A,B,t,0.5,0,2*p

ezplot('x*sin(10*pi*x)+2',[-1,2]) f=inline('-x.*sin(10*pi*x)-2','x'); v=[]; for x0=[-1:0.8:1.5,1.5:0.1:2] x1=fmincon(f,x0,[],[],[],[],-1,2); v=[v; x0,x1,f(x1)]; end [a,b,c,d]=gaopt([-1,2]

syms x y z int(int(int(4*x*z*exp(-x^2*y-z^2),x,0,2),y,0,pi),z,0,pi) vpa(ans,60)

syms t; f=exp(-t)*sin(3*t+1); ezplot(f,[0,pi]); hold on [A1,B1,F1]=fseries(f,t,10,0,pi); ezplot(F1,[0,pi]); [A2,B2,F2]=fseries(f,t,15,0,pi); ezplot(F2,[0,pi]); [A3,B3,F3]=fseries(f,t,20,0,pi); ezpl

x0=-2*pi:0.01:2*pi; y0=sin(x0); syms x; y=sin(x); plot(x0,y0), axis([-2*pi,2*pi,-1.5,1.5]); hold on for n=[8:2:16] p=taylor(y,x,n), y1=subs(p,x,x0); line(x0,y1) end