matlab 字母的值已知 直接代数值进方程得解 代字母进方程却错误solve('((350-x^2/2000)^2.5)*x-60000=0'); 能解的出但是a=350;b=60000;solve('((a-x^2/2000)^2.5)*x-b=0');却是?Error using ==> solve at 162Unable to find closed fo
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matlab 字母的值已知 直接代数值进方程得解 代字母进方程却错误solve('((350-x^2/2000)^2.5)*x-60000=0'); 能解的出但是a=350;b=60000;solve('((a-x^2/2000)^2.5)*x-b=0');却是?Error using ==> solve at 162Unable to find closed fo
matlab 字母的值已知 直接代数值进方程得解 代字母进方程却错误
solve('((350-x^2/2000)^2.5)*x-60000=0'); 能解的出
但是
a=350;
b=60000;
solve('((a-x^2/2000)^2.5)*x-b=0');
却是?Error using ==> solve at 162
Unable to find closed form solution.
Error in ==> tr at 9
solve('((a-x^2/2000)^2.5)*x-b=0');
有什么办法能使它代入字母也能解出吗,
matlab 字母的值已知 直接代数值进方程得解 代字母进方程却错误solve('((350-x^2/2000)^2.5)*x-60000=0'); 能解的出但是a=350;b=60000;solve('((a-x^2/2000)^2.5)*x-b=0');却是?Error using ==> solve at 162Unable to find closed fo
x=solve('x^3-2*x^2-4*x=7');vpa(x,5); x = [ 3.6321] [ -.81603+1.1232*i] [ -.81603-1.1232*i] >> roots([1 -2 -4 -7]) ans = 3.6320 -0.8160 + 1.1232i -0.8160 - 1.1232i