matlab程序 帮改成正常的

matlab程序 帮改成正常的 f1=pi/2;f2=11*pi/18;f3=4*pi/9;f4=4*pi/9;r=10;e=80;s0=100;h=100;x=sym('x');s1=h.*[x/f1-sin(2*pi/f1.*x)/(2*pi)];x1=(s0+s1).*cos(x)-e.*sin(x);y1=(s0+s1).*sin(x)+e.*cos(x);dx1=diff(x1,'x');dy1=diff(y1,'x');X1=x1-r*(dy1./(((dx1).^2+(dy1).^2).^(0.5)));Y1=y1+r*(dx1./(((dx1).^2+(dy1).^2).^(0.5)));y=sym('y');s2=h;x2=(s0+s2).*cos(y)-e.*sin(y);y2=(s0+s2).*sin(y)+e.*cos(y);dx2=diff(x2,'y');dy2=diff(y2,'y');X2=x2-r*(dy2./(((dx2).^2+(dy2).^2).^(0.5)));Y2=y2+r*(dx2./(((dx2).^2+(dy2).^2).^(0.5)));z=sym('z');t=(z-f1-f2)/f3;s3=h.*[1-(10*t.^3-15*t.^4+6*t.^5)];x3=(s0+s3).*cos(z)-e.*sin(z);y3=(s0+s3).*sin(z)+e.*cos(z);dx3=diff(x3,'z');dy3=diff(y3,'z');X3=x3-r.*(dy3./(((dx3).^2+(dy3).^2).^(0.5)));Y3=y3+r.*(dx3./(((dx3).^2+(dy3).^2).^(0.5)));p=sym('p');s4=0;x4=(s0+s4).*cos(p)-e.*sin(p);y4=(s0+s4).*sin(p)+e.*cos(p);dx4=diff(x4,'p');dy4=diff(y4,'p');X4=x4-r*(dy4./(((dx4).^2+(dy4).^2).^(0.5)));Y4=y4+r*(dx4./(((dx4).^2+(dy4).^2).^(0.5)));x=[0:0.01:pi/2];y=[pi/2:0.01:10*pi/9];z=[10*pi/9:0.01:14*pi/9];p=[14*pi/9:0.01:2*pi];X1=eval(X1);Y1=eval(Y1);X2=eval(X2);Y2=eval(Y2);X3=eval(X3);Y3=eval(Y3);X4=eval(X4);Y4=eval(Y4);x1=eval(x1);y1=eval(y1);x2=eval(x2);y2=eval(y2);x3=eval(x3);y3=eval(y3);x4=eval(x4);y4=eval(y4);plot(X1,Y1,X2,Y2,X3,Y3,X4,Y4);