用matlab解带系数的二元三次方程组有两个方程:syms m,v,x,y;[x,y]=solve('(1.5607*10^(-5)*v+x+y)*(1.2125*10^(-3)*v+x)*(3.9059*10^(-4)*v+x+y)=8.5717*10^(-11)*m^2*v^2*(4.3115*10^(-2)*v-x)','(1.5607*10^(-5)*v+x+y)*(7.3826*10^(-7)*v+y)=2.9
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![用matlab解带系数的二元三次方程组有两个方程:syms m,v,x,y;[x,y]=solve('(1.5607*10^(-5)*v+x+y)*(1.2125*10^(-3)*v+x)*(3.9059*10^(-4)*v+x+y)=8.5717*10^(-11)*m^2*v^2*(4.3115*10^(-2)*v-x)','(1.5607*10^(-5)*v+x+y)*(7.3826*10^(-7)*v+y)=2.9](/uploads/image/z/7622438-14-8.jpg?t=%E7%94%A8matlab%E8%A7%A3%E5%B8%A6%E7%B3%BB%E6%95%B0%E7%9A%84%E4%BA%8C%E5%85%83%E4%B8%89%E6%AC%A1%E6%96%B9%E7%A8%8B%E7%BB%84%E6%9C%89%E4%B8%A4%E4%B8%AA%E6%96%B9%E7%A8%8B%EF%BC%9Asyms+m%2Cv%2Cx%2Cy%3B%5Bx%2Cy%5D%3Dsolve%28%27%281.5607%2A10%5E%28-5%29%2Av%2Bx%2By%29%2A%281.2125%2A10%5E%28-3%29%2Av%2Bx%29%2A%283.9059%2A10%5E%28-4%29%2Av%2Bx%2By%29%3D8.5717%2A10%5E%28-11%29%2Am%5E2%2Av%5E2%2A%284.3115%2A10%5E%28-2%29%2Av-x%29%27%2C%27%281.5607%2A10%5E%28-5%29%2Av%2Bx%2By%29%2A%287.3826%2A10%5E%28-7%29%2Av%2By%29%3D2.9)
用matlab解带系数的二元三次方程组有两个方程:syms m,v,x,y;[x,y]=solve('(1.5607*10^(-5)*v+x+y)*(1.2125*10^(-3)*v+x)*(3.9059*10^(-4)*v+x+y)=8.5717*10^(-11)*m^2*v^2*(4.3115*10^(-2)*v-x)','(1.5607*10^(-5)*v+x+y)*(7.3826*10^(-7)*v+y)=2.9
用matlab解带系数的二元三次方程组
有两个方程:syms m,v,x,y;
[x,y]=solve('(1.5607*10^(-5)*v+x+y)*(1.2125*10^(-3)*v+x)*(3.9059*10^(-4)*v+x+y)=8.5717*10^(-11)*m^2*v^2*(4.3115*10^(-2)*v-x)','(1.5607*10^(-5)*v+x+y)*(7.3826*10^(-7)*v+y)=2.95*10^(-8)*m*v*(3.9059*10^(-4)*v+x-y)‘,'x,y')
哪位能帮着解一下啊.
其中m和v是系数,求解x,y.运算不出来是什么状况呢?
用matlab解带系数的二元三次方程组有两个方程:syms m,v,x,y;[x,y]=solve('(1.5607*10^(-5)*v+x+y)*(1.2125*10^(-3)*v+x)*(3.9059*10^(-4)*v+x+y)=8.5717*10^(-11)*m^2*v^2*(4.3115*10^(-2)*v-x)','(1.5607*10^(-5)*v+x+y)*(7.3826*10^(-7)*v+y)=2.9
syms m,v,x,y
[x,y]=solve('(1.5607*10^(-5)*v+x+y)*(1.2125*10^(-3)*v+x)*(3.9059*10^(-4)*v+x+y)=8.5717*10^(-11)*m^2*v^2*(4.3115*10^(-2)*v-x)','(1.5607*10^(-5)*v+x+y)*(7.3826*10^(-7)*v+y)=2.95*10^(-8)*m*v*(3.9059*10^(-4)*v+x-y)','x','y')
按上面改后,就会有结果,但很长