含有定积分形式的非线性方程组 用matlab 该怎么求解~~Parameters a,b,c,d,e,f ;Function int(exp(a+b*x+c*x^2+d*x^3+e*x^4+f*x^5)),x=0.5779,13.5883)=1;int(x*exp(a+b*x+c*x^2+d*x^3+e*x^4+f*x^5)),x=0.5779,13.5883)=6.86;int(x^2*exp(a+b*x+c*x^
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![含有定积分形式的非线性方程组 用matlab 该怎么求解~~Parameters a,b,c,d,e,f ;Function int(exp(a+b*x+c*x^2+d*x^3+e*x^4+f*x^5)),x=0.5779,13.5883)=1;int(x*exp(a+b*x+c*x^2+d*x^3+e*x^4+f*x^5)),x=0.5779,13.5883)=6.86;int(x^2*exp(a+b*x+c*x^](/uploads/image/z/5171241-57-1.jpg?t=%E5%90%AB%E6%9C%89%E5%AE%9A%E7%A7%AF%E5%88%86%E5%BD%A2%E5%BC%8F%E7%9A%84%E9%9D%9E%E7%BA%BF%E6%80%A7%E6%96%B9%E7%A8%8B%E7%BB%84+%E7%94%A8matlab+%E8%AF%A5%E6%80%8E%E4%B9%88%E6%B1%82%E8%A7%A3%7E%7EParameters+a%2Cb%2Cc%2Cd%2Ce%2Cf+%3BFunction+int%28exp%28a%2Bb%2Ax%2Bc%2Ax%5E2%2Bd%2Ax%5E3%2Be%2Ax%5E4%2Bf%2Ax%5E5%29%29%2Cx%3D0.5779%2C13.5883%29%3D1%3Bint%28x%2Aexp%28a%2Bb%2Ax%2Bc%2Ax%5E2%2Bd%2Ax%5E3%2Be%2Ax%5E4%2Bf%2Ax%5E5%29%29%2Cx%3D0.5779%2C13.5883%29%3D6.86%3Bint%28x%5E2%2Aexp%28a%2Bb%2Ax%2Bc%2Ax%5E)
含有定积分形式的非线性方程组 用matlab 该怎么求解~~Parameters a,b,c,d,e,f ;Function int(exp(a+b*x+c*x^2+d*x^3+e*x^4+f*x^5)),x=0.5779,13.5883)=1;int(x*exp(a+b*x+c*x^2+d*x^3+e*x^4+f*x^5)),x=0.5779,13.5883)=6.86;int(x^2*exp(a+b*x+c*x^
含有定积分形式的非线性方程组 用matlab 该怎么求解~~
Parameters a,b,c,d,e,f ;
Function int(exp(a+b*x+c*x^2+d*x^3+e*x^4+f*x^5)),x=0.5779,13.5883)=1;
int(x*exp(a+b*x+c*x^2+d*x^3+e*x^4+f*x^5)),x=0.5779,13.5883)=6.86;
int(x^2*exp(a+b*x+c*x^2+d*x^3+e*x^4+f*x^5)),x=0.5779,13.5883)=54.39;
int(x^3*exp(a+b*x+c*x^2+d*x^3+e*x^4+f*x^5)),x=0.5779,13.5883)=478.14;
int(x^4*exp(a+b*x+c*x^2+d*x^3+e*x^4+f*x^5)),x=0.5779,13.5883)=4534.51;
int(x^5*exp(a+b*x+c*x^2+d*x^3+e*x^4+f*x^5)),x=0.5779,13.5883)=45534.81;
就是上面的方程,求出a,b,c,d,e,f 的数值.
非线性方程组,还是定积分的形式,我尝试着用fsolve一直出错
请高手指点,
上面的表示如果有错误 或者不明确的请高手指出~~非常感谢
含有定积分形式的非线性方程组 用matlab 该怎么求解~~Parameters a,b,c,d,e,f ;Function int(exp(a+b*x+c*x^2+d*x^3+e*x^4+f*x^5)),x=0.5779,13.5883)=1;int(x*exp(a+b*x+c*x^2+d*x^3+e*x^4+f*x^5)),x=0.5779,13.5883)=6.86;int(x^2*exp(a+b*x+c*x^
你得说出的什么错,贴出报错信息才可能知道你到底哪儿不对.
要是半天算不出来,那其实也挺正常,matlab算积分都是数值积分,光是算这个积分就要迭代好一会儿,更不要说在这个迭代次数上还要乘以解方程本身的迭代次数,未知数又是6维的,这个计算量太大,计算精度很低,不可能达到你的要求.
可以求解,我试过。有什么背景吗