S = solve('127627 - y/(1+(y/126743 - 1)*exp(-x)) = 0','129988 - y/(1+(y/126743 - 1)*exp(-4*x)) = 0'); vpa(S.x) vpa
求解非线性方程组
S = solve('127627 - y/(1+(y/126743 - 1)*exp(-x)) = 0','129988 - y/(1+(y/126743 - 1)*exp(-4*x)) = 0'); vpa(S.x) vpa