matlab在线
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最佳答案：第一题syms tf = (1-sqrt(t)) / (1+sqrt(t));a = diff(f);t = 4;result = eval(a);第二题sym
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最佳答案：function [Q,R]=Householder(A)[m,n]=size(A); %要求m>=n;V=zeros(m);Q=eye(m);R=zeros(