A multiple-disc clutch has four discs on the driving shaft and three on the driven shaft. The inside diameter of the contact surface is 140 mm. Find out the number of pairs of contact surfaces.

Hello Sir,Good Evening. I have a question in my homework realated geometry tolerance lesson. The following below is my question. Please advice thank you. "What is the difference between position tolerance and orientation tolerance?"

Codes to start with: (many errors and bugs to be corrected)m=30;n=m*m;x=linspace(0,1,m);y=linspace(1,0,m);k=10;a=zeros(n,n);b=zeros(n);c=zeros(n);d=zeros(m,m);%interior pointsfor jj=?a(jj,jj)=-4;a(jj,jj-2*m)=1;a(jj,jj+2*m)=1;a(jj,jj-2)=1;a(jj,jj+4)=1;end%top bcfor jj=1:ma(jj,jj)=1;end%bottom bcfor jj=?a(jj,jj)=1;end%left bcfor jj=?a(jj,jj)=-4;a(jj,jj-m-5)=1;a(jj,jj+m-2)=1;a(jj,jj+4)=2;end%right bcfor jj=?a(jj,jj)=-4;a(jj,jj-m)=1;a(jj,jj+m)=1;a(jj,jj-1)=2;endfor jj=1:mb(jj)=30;endfor jj=?b(jj)=50;endfor jj=?b(jj)=-20000/k/m*cos(pi*((m-1)*m-jj+1)/m/m);endc=inv(a)*b;%try to plot c in 2d domainfigurecontourf(x,y,d)title('Temperature')xlabel('Distance x')ylabel('Distance y')

kindly answer it