matlab学习5-解微积分方程 1、 dsolve解微分方程 dsolve('Du=1+u^2','t') 微分方程组 y=dsolve('D2y+4*Dy+29*y=0','y(0)=0,Dy(0)=15','x') [x,y,z]=dsolve('Dx=2*x-3*y
