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//chapter-2,Example2_7,pg 485
CMRR=10*10^4//common mode rejection ratio
//set a=beta+k1*delbeta and b=beta(-/+)k2*delbeta
//CMRR=0.5*((4(+/-)3*delbeta*(k1-k2))/((+/-)delbeta*(k1-k2)))
//CMRR=0.5*((4(+/-)3*(a1-a2))/((+/-)(a1-a2)))
//a1->k1*delbeta, a2->k2*delbeta
delalpha=(2/CMRR)//a1-a2=delalpha
printf("tolerance in parameters\n")
printf("delalpha=%.7f \n",delalpha)
printf("Therefore, if a varies by 1 percent, b should not vary more than 2*10^-3 percent of variation of a ")
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