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t=0:-001:2*pi x=sin(3*t) y=hilbert(x) ％同时显示原始数据图像和变换后数据图像 plot(t,real(y),':',t,imag(y))

>> a1=axes; %创建第一个区域位于窗口上方 >> set(a1,'position',[0.05 0.55 0.9 0.4]); %定位于窗口上方 >> a2=axes; %创建第二个区域 >> set(a2,'position',[0.05 0.

theta = -pi:0.01:pi; % 计算 rho(1,:) = 2 * sin(5 * theta) .^ 2; rho(2,:) = cos(10 * theta) .^ 3; rho(3,:) = sin(theta) .^ 2; rho(4,:) = 5 * cos(3.5 * theta) .^ 3; for k = 1:4 po

>> x=[1 ;3; 5; 7; 9]; >> y=fft(x) >> t=0:0.02:1; %波形方程 >> x=sin(2*pi*20*t)+sin(2*pi*12*t); >> y=fft(x); %经过傅立叶变换观察其模数和相位 >> m=abs(y

function [sol,val] = gaMichEval(sol,options) val = 21.5 + sol(1) * sin(4*pi*sol(1)) + sol(2)*sin(20*pi*sol(2)); %G=zeros(0); %val = sqrt(sol(1)) * sin(2*sol(1)) + sqrt(sol(1))*cos(5*sol(1))+5;

function [sys,x0,str,ts] = spacemodel(t,x,u,flag) switch flag, case 0, [sys,x0,str,ts]=mdlInitializeSizes; case 3, sys=mdlOutputs(t,x,u); case {2,4,9} sys=[]; otherwise erro

function dx=PlantModel(t,x,flag,para) global S A F c alfa beta dx=zeros(2,1); S=1; if S==1 rin=1.0; drin=0; elseif S==2 A=0.5;F=3; rin=A*sin(F*2*pi*t); drin=A*F*2*pi*cos(F*2

function[gsrv1,gsrv2]=gngauss(m,sgma) if nargin==0, m=0;sgma=1; elseif nargin==1, sgma=m;m=0; end; u=rand; z=sgma*(sqrt(2*log(1/(1-u)))); u=rand; gsrv1=m+z*cos(2*pi*u); gsrv2=m+z*sin

function[gsrv1,gsrv2]=gngauss(m,sgma) if nargin==0, m=0;sgma=1; elseif nargin==1, sgma=m;m=0; end; u=rand; z=sgma*(sqrt(2*log(1/(1-u)))); u=rand; gsrv1=m+z*cos(2*pi*u); gsrv2=m

#include #include void main(void) { double pi = 3.14159265; printf("Tangent of pi is %f\n", tan(pi)); printf("Tangent of pi/4 is %f\n", tan(pi / 4.0)); }