Question

某种蛋白质是由四种氨基酸组合而成的,这四种氨基酸的分子量分别为57,71,97,101,实验测定蛋白质的分子量为800,

Answer 1

A=[57 71 97 101];m=120;n=3;

B = repmat(A,m,n);

q=randperm(m*n);q=reshape(q,[],12);

C=B(q);

D=cumsum(C');a=[];[r c]=size(q);

[i j]=find(D==800);kk=length(i),ak=1;a=[];%

% isempty(kk)

if kk>0

for ii=1:kk;

ir=i(ii);jc=j(ii);

a=C(1:ir,jc)

end

end