//chapter13,Example13_6,pg 393

M7Li3=7.01818

M1H1=1.0081

M1n0=1.009

BEpernu=(1/7)*((3*M1H1)+(4*M1n0)-M7Li3)//binding energy per nucleon

BEpernu=BEpernu*931//converting in Mev

printf("binding energy per nucleon\n")

printf("BE=%.2f Mev",BEpernu)