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+//example 4.2//
+//How many NAND gate inputs can be driven from the output of a NAND gate of this type//
+clc
+//clears the variables//
+clear
+//clears the screen//
+//given//
+a=0.4
+//I(oh)max in mA//
+b=2.7
+//V(oh) min in V//
+c=2
+//V(ih) min in V//
+d=.8
+//V(il)max in V//
+e=.4
+//V(ol) max in V//
+f=8
+//I(ol)max in mA//
+g=.4
+//I(il)max in mA//
+h=20
+//I(ih) max in micro amp//
+i=1.6
+//I(cch)max in mA//
+j=4.4
+//I(ccl)max in mA//
+t=15
+//t(pLH)=t(pHL) in ns//
+disp('This figure is given by the worst-case fan-out specification of the device')
+s=a*1000/h;
+disp(s,'the HIGH-state fan-out=')
+u=f/g;
+disp(u,'LOW-state fan-out=')
+z=min(s,u);
+disp('Therefore, the number of inputs that can be driven from a single output =')
+disp('V',z)
+\ No newline at end of file