一个六个未知数的，一次非线性方程组，，，该怎么求解啊

你就不能把代码复制到里边来吗，我给你看还得输一遍。

我有空给你看看啊

1.361 w1 + 0.5 ln(w1) - k + 1.035 = 0
2.095 w2 + 0.5 ln(w2) - k + 1.159 = 0
1.630 w3 + 0.5 ln(w3) - k + 0.878 = 0
2.535 w4 + 0.5 ln(w4) - k + 1.133 = 0
1.944 w5 + 0.5 ln(w5) - k + 0.819 = 0
w1 + w2 + w3 + w4 + w5 - 1 = 0

restart;
eqn1 := 1.361*omega[1]+.5*ln(omega[1])-k+1.035 = 0;
1.361 omega[1] + 0.5 ln(omega[1]) - k + 1.035 = 0
eqn2 := 2.095*omega[2]+.5*ln(omega[2])-k+1.159 = 0;
2.095 omega[2] + 0.5 ln(omega[2]) - k + 1.159 = 0
eqn3 := 1.630*omega[3]+.5*ln(omega[3])-k+.878 = 0;
1.630 omega[3] + 0.5 ln(omega[3]) - k + 0.878 = 0
eqn4 := 2.535*omega[4]+.5*ln(omega[4])-k+1.133 = 0;
2.535 omega[4] + 0.5 ln(omega[4]) - k + 1.133 = 0
eqn5 := 1.944*omega[5]+.5*ln(omega[5])-k+.819 = 0;
1.944 omega[5] + 0.5 ln(omega[5]) - k + 0.819 = 0
eqn6 := omega[1]+omega[2]+omega[3]+omega[4]+omega[5]-1 = 0;
omega[1] + omega[2] + omega[3] + omega[4] + omega[5] - 1 = 0
fsolve({eqn1, eqn2, eqn3, eqn4, eqn5, eqn6}, {k, omega[1], omega[2], omega[3], omega[4], omega[5]});
{k = 0.5606501540, omega[1] = 0.2154325932,
omega[2] = 0.1567141361, omega[3] = 0.2413508678,
omega[4] = 0.1493124819, omega[5] = 0.2371899209}

这上面一复制就变成这样了，如果觉得麻烦，把邮箱告我，或者qq直接把程序给你传过去，那样好看些。