矩阵能否对角化,如果可以,求出其对角化后的矩阵为()。
A.否B.可对角化,C.可对角化,D.可对角化,
单项选择题方阵的特征值与特征向量为()。
A.特征值(-1,-1,10),特征向量(-0.2981,-0.5963,-0.7454)^T,(0.8944,0.4472,0)^T,(0.3333,0.6667,-0.6667)^TB.特征值(-1,-1,10),特征向量(-0.2981,-0.5963,-0.7454)^T,(0.8944,-0.4472,0)^T,(0.3333,0.6667,-0.6667)^TC.特征值(1,1,10),特征向量(-0.2981,-0.5963,-0.7454)^T,(0.8944,-0.4472,0)^T,(0.3333,0.6667,-0.6667)^TD.特征值(1,1,10),特征向量(-0.2981,-0.5963,-0.7454)^T,(0.8944,0.4472,0)^T,(0.3333,0.6667,-0.6667)^T
单项选择题方阵的特征值分别是()。
A.9.9473,-2.9736+1.5220i,-2.9736-1.5220iB.9.9473,-2.9736+1.5220i,-2.9736+1.5220iC.9.9473,-2.9736-1.5220i,-2.9736-1.5220iD.-9.9473,-2.9736+1.5220i,-2.9736-1.5220i
单项选择题用下面哪个Matlab命令可以生成m*n阶服从[0,1]均匀分布的随机数矩阵?()
A.random(m,n)B.rand(m,n)C.random(n,m)D.rand(n,m)
单项选择题随机变量X服从标准正态分布N(0,1),若P(X≤x)取值为0.1,0.3,0.5,0.7,0.9,则对应的x值分别是()。
A.1.2816,0.5244,0,-0.5244,-1.2816B.-1.2816,-0.5244,0,0.5244,1.2816C.1.2816,-0.5244,0,0.5244,-1.2816D.-1.2816,0.5244,0,-0.5244,-1.2816
单项选择题用Monte Carlo法计算二重积分的结果是()。
A.0.866B.0.688C.0.686D.0.868