>> syms x y z; >> z=x^2+y^2; >> plot3(x,y,z) 用MATLAB输入这样有错吗?
matlab中 syms x y z; R =x^2+y^2;现在要用替换x变成R =z^2+y^2要怎么做?
matlab >> syms x y z a b cy=16.7143*x^2-46.227*x+36.3129;z=0
matlab如何画z=x^2+y^2,z
(y-x)/(x+z-2y)(x+y-2z)+(z-y)(x-y)/(x+y-2z)(y+z-2x)+(x-z)(y-z
试证明(x+y-2z)+(y+z-2x)+(z+x-2y)=3(x+y-2z)(y+z-2x)(z+x-2y)
matlab 7.0每次使用plot3(x,y,z),mesh(x,y,z),surf(x,y,z),等3D指令时程序就
matlab t=linspace(0,pi/10,1000); >> syms x y z% >> th=[x*(1+
x,y,z正整数 x>y>z证明 x^2x +y^2y+z^2z>x^(y+z)*y^(x+z)*z^(x+y)
MATLAB程序问题解一个方程组如下syms x y z t a b c d m s; f = x+z-a;g = (2
化简(y-x)(z-x)/(x-2y+z)(x+y-2z)+(z-y)(x-y)/(x-2z+y)(y+z-2x)+(x
(x+y-z)^2-(x-y+z)^2=?
(x+y-z)(x-y+z)=