codigo visual basic cholesky 4x4

1. Public Class Form1
Dim x(6) As Single
Dim y(6) As Single
Dim z(6) As Single
Dim s, s1, s2, s3, s4, s5, s6, s7 As Double
Dim l(3, 3) As Single
Private Sub btndatos_Click(sender As Object, e As EventArgs) Handles
btndatos.Click
a.Rows(0).Cells(0).Value = "i"
For i = 1 To 6
a.Rows(i).Cells(0).Value = i - 1
Next
a.Rows(0).Cells(1).Value = "x"
a.Rows(1).Cells(1).Value = 0
a.Rows(2).Cells(1).Value = 2
a.Rows(3).Cells(1).Value = 2.5
a.Rows(4).Cells(1).Value = 1
a.Rows(5).Cells(1).Value = 4
a.Rows(6).Cells(1).Value = 7
a.Rows(0).Cells(2).Value = "y"
a.Rows(1).Cells(2).Value = 0
a.Rows(2).Cells(2).Value = 1
a.Rows(3).Cells(2).Value = 2
a.Rows(4).Cells(2).Value = 3
a.Rows(5).Cells(2).Value = 6
a.Rows(6).Cells(2).Value = 2
a.Rows(0).Cells(3).Value = "z"
a.Rows(1).Cells(3).Value = 5
a.Rows(2).Cells(3).Value = 10
a.Rows(3).Cells(3).Value = 9
a.Rows(4).Cells(3).Value = 0
a.Rows(5).Cells(3).Value = 3
a.Rows(6).Cells(3).Value = 27
End Sub
Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
a.Rows.Add(6)
b.Rows.Add(6)
End Sub
Private Sub btngenerar_Click(sender As Object, e As EventArgs) Handles
btngenerar.Click
x(0) = a.Rows(1).Cells(1).Value
x(1) = a.Rows(2).Cells(1).Value
x(2) = a.Rows(3).Cells(1).Value
x(3) = a.Rows(4).Cells(1).Value
x(4) = a.Rows(5).Cells(1).Value
x(5) = a.Rows(6).Cells(1).Value
y(0) = a.Rows(1).Cells(2).Value
y(1) = a.Rows(2).Cells(2).Value
y(2) = a.Rows(3).Cells(2).Value
y(3) = a.Rows(4).Cells(2).Value
y(4) = a.Rows(5).Cells(2).Value
y(5) = a.Rows(6).Cells(2).Value
z(0) = a.Rows(1).Cells(3).Value

2. z(1) = a.Rows(2).Cells(3).Value
z(2) = a.Rows(3).Cells(3).Value
z(3) = a.Rows(4).Cells(3).Value
z(4) = a.Rows(5).Cells(3).Value
z(5) = a.Rows(6).Cells(3).Value
b.Rows(0).Cells(0).Value = 6
For i = 0 To 5
s = s + x(i)
s1 = s1 + y(i)
s2 = s2 + (x(i)) ^ 2
s3 = s3 + x(i) * y(i)
s4 = s4 + y((i)) ^ 2
s5 = s5 + z(i)
s6 = s6 + x(i) * z(i)
s7 = s7 + y(i) * z(i)
Next
b.Rows(1).Cells(0).Value = s
b.Rows(0).Cells(1).Value = s
b.Rows(2).Cells(0).Value = s1
b.Rows(0).Cells(2).Value = s1
b.Rows(1).Cells(1).Value = s2
b.Rows(2).Cells(1).Value = s3
b.Rows(1).Cells(2).Value = s3
b.Rows(2).Cells(2).Value = s4
b.Rows(0).Cells(3).Value = s5
b.Rows(1).Cells(3).Value = s6
b.Rows(2).Cells(3).Value = s7
End Sub
Private Sub btncalcular_Click(sender As Object, e As EventArgs) Handles
btncalcular.Click
Dim a0, a1, a2, c1, c2, c3 As Double
l(1, 1) = (b.Rows(0).Cells(0).Value) ^ 0.5
l(2, 1) = (b.Rows(1).Cells(0).Value) / l(1, 1)
l(3, 1) = (b.Rows(2).Cells(0).Value) / l(1, 1)
l(2, 2) = ((b.Rows(1).Cells(1).Value) - (l(2, 1)) ^ 2) ^ 0.5
l(3, 2) = ((b.Rows(2).Cells(1).Value) - l(2, 1) * l(3, 1)) / l(2, 2)
l(3, 3) = ((b.Rows(2).Cells(2).Value) - (l(3, 1)) ^ 2 - (l(3, 2)) ^ 2) ^ 0.5
c1 = (b.Rows(0).Cells(3).Value) / l(1, 1)
c2 = ((b.Rows(1).Cells(3).Value) - l(2, 1) * c1) / l(2, 2)
c3 = ((b.Rows(2).Cells(3).Value) - l(3, 1) * c1 - l(3, 2) * c2) / l(3, 3)
a2 = c3 / l(3, 3)
a1 = (c2 - l(3, 2) * a2) / l(2, 2)
a0 = (c1 - l(2, 1) * a1 - l(3, 1) * a2) / l(1, 1)
txtacero.Text = FormatNumber(a0,4)
txtauno.Text = FormatNumber(a1, 4)
txtados.Text = FormatNumber(a2, 4)
End Sub
End Class