matlab 中solve循环比如：i=1:10 s=solve('x^3+x^2+x=1=i','x')要正根_其他解答

matlab 中solve循环比如：i=1:10 s=solve('x^3+x^2+x=1=i','x')
要正根

人气：151 ℃　时间：2020-06-26 22:22:59

解答

n = 10;i = 1:n;s = cell(1,n);for i = 1:nep = ['solve(''x^3+x^2+x =' num2str(i) ''')'];s{i} = eval(ep);end;vpa(s{1},4) ans =0.5437- 0.7718 + 1.115*i- 0.7718 - 1.115*ivpa(s{2},4) ans = 0.8105- 0.9053 + ...在我这里运行的结果是ans = 123