matlab如何求矩阵特征值？vb怎样求一个矩阵的最大特征值？
matlab如何求矩阵特征值?
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首先我们打开matlab软件，定义一个矩阵，
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然后执行[x,y] = eig(a)公式，求出x,y的值，
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接下来执行diag(y)，求出y的特征值，
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最后矩阵的特征值都标示在红框中了
vb怎样求一个矩阵的最大特征值?
Private Sub ni_Click()
End Sub
Public Function GetHLS(A() As Integer) As Double
If UBound(A) = 1 Then
GetHLS = A(0, 0) * A(1, 1) - A(0, 1) * A(1, 0)
End If
If UBound(A) > 1 Then
Dim RRes As Double
Dim LRes As Double
Dim CNum As Integer
Dim TNum As Double
Dim i As Integer
RRes = 0
LRes = 0
For i = 0 To UBound(A)
CNum = i
TNum = 1、If i = 0 Then
For j = 0 To UBound(A)
TNum = TNum * A(j, j)
Next j
End If
If i > 0 Then
Call YD(i)
For j = 0 To UBound(A)
TNum = TNum * A(j, cc(j))
Next j
End If
RRes = RRes + TNum
Next i
For i = 0 To UBound(A)
CNum = i
TNum = 1、If i = 0 Then
For j = 0 To UBound(A)
TNum = TNum * A(j, UBound(A) - j)
Next j
End If
If i > 0 Then
Call YD(i)
For j = 0 To UBound(A)
TNum = TNum * A(UBound(A) - j, cc(j))
Next j
End If
LRes = LRes + TNum
Next i
GetHLS = RRes - LRes
End If
End Function
Public Sub YD(N As Integer)
Dim n1 As Integer
n1 = UBound(aa)
ReDim bb(n1)
ReDim cc(n1)
For i = 0 To n1 - N
bb(i) = aa(N + i)
Next
For i = 0 To n1 - N
cc(i) = bb(i)
Next
For i = n1 - N + 1 To n1、cc(i) = aa(i - n1 + N - 1)
Next
End Sub
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