matlab解二元cosd方程[x,y]=solve('cosd(78.2-y)/cosd(79.8-y)=478*cosd(78.2-x)/(470*cosd(79.8-x))','cosd(81.1-y)/cosd(78.8-y)=555*cosd(81.1-x)/(565*cosd(78.8-x))','x','y')Error using mupadengine/feval (line 144)MuPAD error:Error:cannot differentiat
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![matlab解二元cosd方程[x,y]=solve('cosd(78.2-y)/cosd(79.8-y)=478*cosd(78.2-x)/(470*cosd(79.8-x))','cosd(81.1-y)/cosd(78.8-y)=555*cosd(81.1-x)/(565*cosd(78.8-x))','x','y')Error using mupadengine/feval (line 144)MuPAD error:Error:cannot differentiat](/uploads/image/z/15207526-46-6.jpg?t=matlab%E8%A7%A3%E4%BA%8C%E5%85%83cosd%E6%96%B9%E7%A8%8B%5Bx%2Cy%5D%3Dsolve%28%27cosd%2878.2-y%29%2Fcosd%2879.8-y%29%3D478%2Acosd%2878.2-x%29%2F%28470%2Acosd%2879.8-x%29%29%27%2C%27cosd%2881.1-y%29%2Fcosd%2878.8-y%29%3D555%2Acosd%2881.1-x%29%2F%28565%2Acosd%2878.8-x%29%29%27%2C%27x%27%2C%27y%27%29Error+using+mupadengine%2Ffeval+%28line+144%29MuPAD+error%3AError%3Acannot+differentiat)
matlab解二元cosd方程[x,y]=solve('cosd(78.2-y)/cosd(79.8-y)=478*cosd(78.2-x)/(470*cosd(79.8-x))','cosd(81.1-y)/cosd(78.8-y)=555*cosd(81.1-x)/(565*cosd(78.8-x))','x','y')Error using mupadengine/feval (line 144)MuPAD error:Error:cannot differentiat
matlab解二元cosd方程
[x,y]=solve('cosd(78.2-y)/cosd(79.8-y)=478*cosd(78.2-x)/(470*cosd(79.8-x))','cosd(81.1-y)/cosd(78.8-y)=555*cosd(81.1-x)/(565*cosd(78.8-x))','x','y')
Error using mupadengine/feval (line 144)
MuPAD error:Error:cannot differentiate equation [numeric::fsolve]
Error in solve (line 151)
sol = eng.feval('symobj::solvefull',eqns,vars);
高手帮我看下这个方程的错误在哪
matlab解二元cosd方程[x,y]=solve('cosd(78.2-y)/cosd(79.8-y)=478*cosd(78.2-x)/(470*cosd(79.8-x))','cosd(81.1-y)/cosd(78.8-y)=555*cosd(81.1-x)/(565*cosd(78.8-x))','x','y')Error using mupadengine/feval (line 144)MuPAD error:Error:cannot differentiat
Warning:Explicit solution could not be found.
> In solve at 140
x =
[ empty sym ]
y =
[]
我的matlab解出来是这样,说是无法求出解析解,你可以用数值解来做.