返回信息流比如: y*a+10-x=0;a^2*x+2*y=0;m*y+a=0
其中; m=2*x+3a
怎么编程啊? 方程有三个变量,有几个参数,几个参数还是某个变量的函数.
这是一条镜像帖。来源：北邮人论坛 / matlab / #2072同步于 2007/9/7
该镜像源已超过 30 天没有更新，可能在源站已被删除。
Matlab机器人发帖
【求助】解非线性方程组
ilvy8109
2007/9/7镜像同步3 回复
订阅后，新回复会通过你的通知中心匿名送达。
3 条回复
S=solve('y*a+10-x=0','(a^2)*x+2*y=0','(2*x+3*a)*y+a=0')
S =
a: [7x1 sym]
x: [7x1 sym]
y: [7x1 sym]
>> S.x,S.y,S.a
ans =
10
9.9999950223868652278029097953627
.740813913419437651208796664e-3
-2.0275184825359801587406779716049-2.0946550662506562686580508093288*i
2.0271505643858378260136186747308-1.9576877328698137039697790165977*i
2.0271505643858378260136186747308+1.9576877328698137039697790165977*i
-2.0275184825359801587406779716049+2.0946550662506562686580508093288*i
ans =
0
-.49850634366872653584540343116707e-3
-.3333278455970069933052465704559
-4.7305472091631279813208385902346+3.7095950148563837260964386896698*i
2.6474603851334658412413845770408+3.7157209347990899413482230721464*i
2.6474603851334658412413845770408-3.7157209347990899413482230721464*i
-4.7305472091631279813208385902346-3.7095950148563837260964386896698*i
ans =
0
.99850547500353992827464867194296e-2
29.998271426071238464687250649118
1.3593676662192527599797440817222+1.5087807538183746992367003452311*i
-1.3634959066298896919647426496409+1.1742130569221021017064704755749*i
-1.3634959066298896919647426496409-1.1742130569221021017064704755749*i
1.3593676662192527599797440817222-1.5087807538183746992367003452311*i
【 在 ilvy8109 () 的大作中提到: 】
: 比如: y*a+10-x=0;a^2*x+2*y=0;m*y+a=0
: 其中; m=2*x+3a
: 怎么编程啊? 方程有三个变量,有几个参数,几个参数还是某个变量的函数.
: ...................