急需求助帮忙解出方程组结果:求解指数函数方程组，求解a,b,c

[q151694674]

{a+b=290
a*b^76498+c=209.02
a*b^26367+c=228.91}

[麒麟子]

用solve函数可以解决
like this
[x,y]=solve('a+b=2','a-b=1')
不过你的式子次数太高，算的话会比较慢

[Gaietyoaf]

a=sym('a+b=290');b=sym('log(a*b^76498+c)=log(209.2)');c=sym('log(a*b^26367+c)=log(228.91)');[a,b,c]=solve(a,b,c)

a =

289.00000146671628102089050482425



b =

.99999853328371897910949517574852



c =

-49.126877186946453848919135443895
不知道是你所求的数值吗