t=0:0.1:8; y=sin.^2(t./8); plot(t,y) matlab画图,程序哪里错了,我觉得问题在第二行,

matlab中假设t=0：0.1:2*pi；为什么y=t.*sin（t）.*sin（t）不等于y=t.*（sin（t））^2呢? t=0:0.1:8; y=sin.^2(t./8); plot(t,y) matlab画图,程序哪里错了,我觉得问题在第二行, matlab微分方程画图问题已知：x'[t] = 2 (Sin[t] - x[t]) /Sqrt[(Sin[t] - x[t])^2 + (Cos[t] - y[t])^2]y'[t] = 2 (Cos[t] - y[t]) /Sqrt[(Sin[t] - x[t])^2 + (Cos[t] - y[t])^2]初始x[0]=0y[0]=0画出（x,y）的轨迹 matlab绘图中的语法t=0:0.1:2*pi;y=sin(t);plot(t,如题~ matlab怎么画出三维曲线?t=(0:0.01:1)*pix=25*cos(t)y=(-60+25*sin(t))*(14.82-111*25*sin(t)+1250*sin(t)*sin(t)+1511.18*sin(t)-1511.18)/((50-50*sin(t))*sqrtm(900-61*25*sin(t)+625*sin(t)*sin(t)+1511.18sin(t)))-25sin(t)+sqrtm(1100)z=50-25*sqrtm((360 用matlab 如何作出y与t的图?y=(sin(t)-sin(t0))^2 且 cos t+t*sin t-cos to-t0*cos t0=0 MATLAB题用Simulinkf仿真两个正弦信号相减y=sin(t)-sin(2*t). matlab中怎么对下面的程序进行二维插值并画出三维视图呢?[x,y]=meshgrid(-2:1:2);t=2;Z=[(sin(t))^3 t^2 sin(t) cos(t) (sin(t))^2;t^2 sin(t) (cos(t))^4 cos(t) (sin(t))^2;t sin(t) cos(t) t^2 (sin(t))^2;sin(t) (cos(t))^3 t^2 (sin(t))^2 matlab 使用quad函数对f1计算数值积分结果,怎么修改啊?句柄函数也创建了呀,是不是路径有问题f1=@(t)(sin(t)^2*exp(0.1*t)-0.5*abs(t))function y=sy(t)%SY y=(sin(t).^2*exp(0.1*t)-0.5*abs(t)y=(sin(t).^2*exp(0.1*t)-0.5*abs(t) q matlab中t=linspace(0,2*pi,100);x=[t;t]';y=[sin(t);cos(t)]';plot(x,y), y=∫(0,x)sin(x-t)^2dt 求y的导数 用matlab绘制图像的交点（1）y=2x - 0.5（2）x=sin(3t)cos(t);y=sin(3t)sin(t);0 用matlab解：y=dsolve('D2y+exp(-t)*Dy-sin(sqrt(t))*y=exp(-t)*sin(sqrt(t))','y(0)=1,Dy(0)=-2','t') MATLAB 这段代码正确吗分别在同一图形窗的不同子图绘制y=sin(t)sin(9t)和y=cos(t)cos(9t)及其包络线.代码：t=(0:pi/100:pi)';y1=sin(t)*[1,-1];y2=sin(t).*sin(9*t);t3=pi*(0:9)/9;y3=sin(t3).*sin(9*t3);subplot(1,2,1)plot(t,y1,'r:', Matlab程序：错误在哪里建立函数文件fun5.mfunction dy=fun5(t,y)dy=[(-5*sin(t)*(5*cos(t)-y(1))+5*cos(t)*(5*sin(t)-y(2)))*(5*cos(t)-y(1))./((5*cos(t)-y(1))^2+(5*sin(t)-y(2))^2),(-5*sin(t)*(5*cos(t)-y(1))+5*cos(t)*(5*sin(t)-y(2)))*(5*sin(t)- 对y=sin²(2t-5)求导 谁有matlab,帮我画两个图t=0:0.1:10; y=sin(tan(t))-tan(sin(t)); subplot(2,2,1); polar(t, y); subplot(2,2,2); bar(t, y); subplot(2,2,3); stem(t, y); subplot(2,2,4); stairs(t, y); 还有clearx=0:0.1:5*pi;f=sin(x);g=cos(x);plot(x,f,'r*',x,g,'b') 下面这个matlab里的sin函数对不?怎么出波形图?function [t,y]=exp1_sin(t1,t2,dt,A,w)t=t1:dt:t2;y=A*sin(w*t);plot(t,y);xlabel('t');ylabel('y(t)');titel('正弦函数');我在命令窗口输入[t,y]=sin(-2,2,0.1,4,2);,出来的结果是没