[libralibra]

直接计算

>> a=[1,2,3,4]', b=[4,3,2,1]'
a =
     1
     2
     3
     4
b =
     4
     3
     2
     1
>> p = b/a
p =
         0         0         0    1.0000
         0         0         0    0.7500
         0         0         0    0.5000
         0         0         0    0.2500
>> p*a
ans =
     4
     3
     2
     1