dsolve('Du=cos(sin(t))','u(0)=1','t') _________ans =Int(cos(sin(_z1)),_z1 = 0 ..t)+1就是说u(t)是cos(sin(x))从0到t积分再加1 ——————————————[t,u]=ode45(@(t,u)cos(sin(t)),[0 10],1);plot(t,u)...