function Hoscilator
clear
clf t0=0;y0=0;v0=2;
tmax=50;c=0.1;w=sqrt(10);
y=simplify(dsolve('D2y+0.1*Dy+10*y=0','y(0)=0',' Dy(0)=2')) dy=diff(y);
t=t0:(tmax-t0)/200:tmax;

Y=eval(y);DY=eval(dy);
 for k = 1: length(t)
    subplot(3,1,1)
    plot(t(1:k),Y(1:k))
    axis([t0,tmax,-2.5,2.5])
    grid on
    xlabel('t')
    ylabel('y')
     subplot(3,1,2)
      plot(t(1:k),DY(1:k))
      axis([t0,tmax,-8,8])
      grid on
      xlabel('t')
    ylabel('y^{\prime}')
subplot(3,1,3)
 plot(Y(1:k),DY(1:k))
axis([-8,8,-8,8])
grid on
xlabel('y')
ylabel('y^{\prime}')
M(k)=getframe;
end
end