matlab解指数方程解不了啊ab怎么是0呢?s=solve('(a+b*0.720930233)^k','(a+b*155.5779158)^k','(a+b*531.0588235)^k','a,b,k');result=[s.a,s.b,s.k]result=[0.,0.,k]

Question

matlab 解指数方程 解不了啊a b怎么是0呢?
s=solve('(a+b*0.720930233)^k','(a+b*155.5779158)^k','(a+b*531.0588235)^k','a,b,k'); result=[s.a,s.b,s.k] result = [ 0., 0., k]

Answer 1

估计方程搞错了,按照你的输入所求解的是：
(a+c1*b)^k=0;
(a+c2*b)^k=0;
(a+c3*b)^k=0;
等价于:
a+c1*b=0;
a+c2*b=0;
a+c3*b=0;
结果显然只有零解!