//chapter 3
//example 3.8
//page 92
printf("\n")
printf("given")
Vr=2;T=16.7*10^-3;t2=1.16*10^-3;Il=40*10^-3;//from example 3.5
t1=(T/2)-t2
C1=(Il*t1)/Vr;
printf(" resrvior capacitor is %3.6fF\n",C1)