AA(F/A,r,n)(1+r)
BA(F/A,r/2,n)(1+r)
CA(F/A,i,n)(1+i),其中i=(1+r/2)-1
DA(A/P,r/2,2)(F/A,r/2,2n)
EA[(F/P,r/2,2n)+(F/P,r/2,2n-2)+(F/P,r/2,2n-4)+…+(F/P,r/2,2)]
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