代码搜索结果

t=0:pi/20:2*pi; [x,y,z]= cylinder(2+sin(t),30); subplot(2,2,1); surf(x,y,z); subplot(2,2,2); [x,y,z]=sphere; surf(x,y,z); subplot(2,1,2); [x,y,z]=peaks(30); surf(x,y,z);

a=0;b=3*pi; n=1000; h=(b-a)/n; x=a; s=0; f0=exp(-0.5*x)*sin(x+pi/6); for i=1:n x=x+h; f1=exp(-0.5*x)*sin(x+pi/6); s=s+(f0+f1)*h/2; f0=f1; end s

function shili05 h0=figure('toolbar','none',... 'position',[200 150 450 250],... 'name','实例05'); t=0:pi/10:2*pi; [x,y]=meshgrid(t); subplot(2,2,1) plot(sin(t),cos(t)) axis equal sub

function s=lagrange(t,n) for i=1:n h=2*pi/n; x(i)=i*h; end s=0; for i=1:n l=1; for j=1:n if j~=i l=l*(t-x(j))/(x(i)-x(j)); end end s=s+

function shili06 h0=figure('toolbar','none',... 'position',[200 150 450 400],... 'name','实例06'); t=0:pi/10:2*pi; h=plot(t,sin(t)); xlabel('t=0到2\pi','fontsize',16); ylabel('sin(t)','fon

%生成基础测量数据 x=-3*pi:3*pi; y=x; [X,Y]=meshgrid(x,y); R=sqrt(X.^2+Y.^2)+eps; Z=sin(R)./R; [dzdx,dzdy]=gradient(Z); dzdr=sqrt(dzdx.^2+dzdy.^2); %绘制基础数据图形 surf(X,Y,Z,abs(dzdr)) colormap(spring) a

function[g1,g2]=gngauss(m,sgma) if nargin == 0 m=0;sgma=1; elseif nargin == 1 m=0;sgma=1; end; u=rand; z=sgma*(sqrt(2*log(1/(1-u)))); u=rand; g1=m+z*cos(2*pi*u); g1=m+z*sin(2*pi*u)

n=[-50:1:50]; x=sin(0.125*pi.*n); subplot(2,1,1); stem(n,x) title('x'); y=0; mn1=min(n); mn2=max(n); n1=fix(mn1/4); n2=fix(mn2/4); for t=n1:1:n2 [y,n]=y+sin(0.125*pi.*n).*impseq(4*t,-50

clc;clear all;close all; e=8.854e-12;%介电常数 u=pi*4e-7;%磁导率 c=3e+8;% N=45;%段数 lambda=1;%波长 L=lambda/2;%天线长度 f=c/lambda;%频率 w=2*pi*f;% k=2*pi/lambda;%波数 eta=120*pi;%波阻抗 a=5*10^(-3);%天线半径 d

function f = f(t,x,y) f = exp(-t)*sin(pi*x)*cos(pi*y)*(-1+2*pi*pi);