代码搜索结果

[X,Y]=meshgrid(-2:.2:2,-2:.2:3); Z=X.*exp(-X.^2-Y.^2); [C,h]=contour(X,Y,Z); clabel(C,h) colormap cool

x=-3:0.1:3; y=1:0.1:5; [X,Y]=meshgrid(x,y); Z=(X+Y).^2; mesh(X,Y,Z)

x=linspace(0,2*pi,30); y=sin(x); plot(x,y) zoom on

x=logspace(-1,2); loglog(x,exp(x),'-s') grid on

x=[1:1:100]; subplot(2,3,1); plot(x,x.^3); grid on; title 'plot-y=x^3'; subplot(2,3,2); loglog(x,x.^3); grid on; title 'loglog-logy=3logx'; subplot(2,3,3); plotyy(x,x.^3,x,x); grid on

[x,y,z]=peaks(20); [dx,dy]=gradient(z,.5,.5); contour(x,y,z,10) hold on quiver(x,y,dx,dy) hold off

x=linspace(0,2*pi,100); y=sin(x);z=cos(x); plot(x,y); title('sin(x)'); pause figure(2); plot(x,z); title('cos(x)'); pause

[X,Y]=meshgrid(-3:.125:3); Z=peaks(X,Y); meshc(X,Y,Z); axis([-3 3 -3 3 -10 5])

x=linspace(0,2*pi,30); y=sin(x); plot(x,y) xlabel('自变量X') ylabel('函数Y') title('示意图') grid on

x=0:.1:10; semilogy(x,10.^x)