matlab矩阵方程计算求使 M-aK的行列式等于0的a值M =[ l^2*m,0,0][ 0,l^2*m,0][ 0,0,l^2*m]K =[ k*h^2 + g*l*m,-h^2*k,0][ -h^2*k,2*k*h^2 + g*l*m,-h^2*k][ 0,-h^2*k,k*h^2 + g*l*m]

问题描述:

matlab矩阵方程计算
求使 M-aK的行列式等于0的a值
M =
[ l^2*m,0,0]
[ 0,l^2*m,0]
[ 0,0,l^2*m]
K =
[ k*h^2 + g*l*m,-h^2*k,0]
[ -h^2*k,2*k*h^2 + g*l*m,-h^2*k]
[ 0,-h^2*k,k*h^2 + g*l*m]