//chapter 19
//example 19.14
//page 849
printf("\n")
printf("given")
R6=100*10^3;R9=R6;Vth=1;Vr7=8;Vr8=14;Vr3=11.3;Vpout=10;Vpin=800*10^-3;
I6=Vth/R6
R7=Vr7/I6
R8=Vr8/I6
Ic1=1*10^-4;Ic2=Ic1;Vr2=9;
R2=Vr2/Ic1
R3=Vr3/(Ic1+Ic2)
R5=4.7*10^3;
Acl=Vpout/Vpin
R4=R5/(Acl-1)