2楼: Originally posted by bsese at 2017-07-23 07:46:48
解出的x，y也应是数组，若仅要一个解要用统计解决，要最小二乘法求解。

4楼: Originally posted by bsese at 2017-07-23 14:17:05
在matlab7运行通过
clear
clc
syms x y n m  　　%定义符号变量
f1 = x^2-y^2-n;   %定义方程组
f2 = 2*x*y-m;
= solve(f1,f2,x,y)   %求解解析解
x =

  m/(-2*n+2*(n^2+m^2)^(1/2))^(1/2)
-m/(-2*n+2*(n^2+m^2 ...

4楼: Originally posted by bsese at 2017-07-23 14:17:05
在matlab7运行通过
clear
clc
syms x y n m  　　%定义符号变量
f1 = x^2-y^2-n;   %定义方程组
f2 = 2*x*y-m;
= solve(f1,f2,x,y)   %求解解析解
x =

  m/(-2*n+2*(n^2+m^2)^(1/2))^(1/2)
-m/(-2*n+2*(n^2+m^2 ...