方程组性态与条件数

[E = mc^2 ]

egin{equation}
e^{ipi}+1 = 0
end{equation}

( E = mc^2 )

egin{cases} dot{x}&=mathbf{A}x+mathbf{B}u\ y&=egin{bmatrix}1&0\ 0&1end{bmatrix}x+egin{bmatrix}1&0\ 0&1end{bmatrix}u end{cases}

--- > qwrqxcvx 1. 1. sdf
header 1 header 2
row 1 col 1 row 1 col 2
row 2 col 1 row 2 col 2

考虑线性方程组

E = mc^2

[oldsymbol{A{}x} = oldsymbol{b}, ]

其中,(oldsymbol{A}in mathbb{R}^{n imes n}) 非奇异,(oldsymbol{b}in mathbb{R}^{n}), 且~(oldsymbol{b} e oldsymbol{0}).
egin{equation*}E = mc^2 end{equation*}

egin{align} otag dot{x}&=mathbf{A}x+mathbf{B}u\ y&=egin{bmatrix}1&0\ 0&1end{bmatrix}x+egin{bmatrix}1&0\ 0&1end{bmatrix}u end{align}

原文地址:https://www.cnblogs.com/cidpmath/p/5968054.html