matlab中如何画图!x=-pi:0.1:pi; y=cos(x)/cos(2*x);plot(x.y)

matlab中如何画图!x=-pi:0.1:pi; y=cos(x)/cos(2*x);plot(x.y) matlab中y=(0.5+3.*sin(x*pi/180)./(1+x^2)).*cos(x*pi/180);哪里错了 matlab中 x=[0:0.15:2*pi]; y=[0:0.15:2*pi]; z=sin(y‘)*cos(x); x=-pi:0.1:pi; fh={@cos,@sin}; plot(fh{2}(x)) 刚学习matlab,谁帮我解释 y=cos(-pi／2x+pi/2)等于什么 matlab中为什么y=2*exp(-0.5*x)*cos(4*pi*x)会报错 Matlab的作图命令,x = 0:pi/100:2*pi; y = sin(x); plot(x,y) 我的matlab程序哪里错了? t=0:0.01:2*pi x=cos(t)^3 y=sin(t)^3 plot(x,y 用MATLAB画图,例>> x=0:pi/15:2*pi; >> y1=sin(x)； >> y2=cos(x)； >> matlab画图x = 0:0.01:10; y =sin(2*x)*cos(100*x)/(2*x); plot(x, 如何用matlab画图 x(n)=x(n-1)+sin(n*pi/n) y(n)=y(n-1)+cos(n*pi/n) matlab >> syms x y;x=linspace(0,2*pi,60);y=(sin(x)*cos(5*x))