如何用matlab解下面的方程组y=2.8761*(x^(-5.988)-1)^(0.334)x=0.91937-0.65156*e^(-715.49*y)用solve[x,y]=solve('y=2.8761*(x^(-5.988)-1)^0.334','x=0.91937-0.65156*e^(-715.49*y)')最后解的x =[ empty sym ]y =[]如何用matlab求出真正的解
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如何用matlab解下面的方程组y=2.8761*(x^(-5.988)-1)^(0.334)x=0.91937-0.65156*e^(-715.49*y)用solve[x,y]=solve('y=2.8761*(x^(-5.988)-1)^0.334','x=0.91937-0.65156*e^(-715.49*y)')最后解的x =[ empty sym ]y =[]如何用matlab求出真正的解
如何用matlab解下面的方程组
y=2.8761*(x^(-5.988)-1)^(0.334)
x=0.91937-0.65156*e^(-715.49*y)
用solve
[x,y]=solve('y=2.8761*(x^(-5.988)-1)^0.334','x=0.91937-0.65156*e^(-715.49*y)')
最后解的x =
[ empty sym ]
y =
[]
如何用matlab求出真正的解.
非常急.
如何用matlab解下面的方程组y=2.8761*(x^(-5.988)-1)^(0.334)x=0.91937-0.65156*e^(-715.49*y)用solve[x,y]=solve('y=2.8761*(x^(-5.988)-1)^0.334','x=0.91937-0.65156*e^(-715.49*y)')最后解的x =[ empty sym ]y =[]如何用matlab求出真正的解
e^()应该为exp(),不过,还是没有解析解,用数值方法.
function hh
ezplot('2.8761*(x^(-5.988)-1)^0.334-y')
hold on
ezplot('0.91937-0.65156*exp(-715.49*y)-x')
grid
X=fsolve(@fun,[1 1])
function f=fun(X)
x=X(1);y=X(2);
f(1)=2.8761*(x^(-5.988)-1)^0.334-y;
f(2)=0.91937-0.65156*exp(-715.49*y)-x;
结果：
Optimization terminated:first-order optimality is less than options.TolFun.
X =
0.91937 2.4962