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Imports System.Threading
Public Class Quadratic
Public Shared Function quadForm(ByVal a As Double, ByVal b As Double, ByVal c As Double) As Tuple(Of Double, Double)
Dim preRoot = ((b * b) - (4 * (a * c)))
If (preRoot < 0) Then
Return New Tuple(Of Double, Double)(Double.NaN, Double.NaN)
Else
Dim r1 = ((Math.Sqrt(preRoot)) - b) / (2 * a)
Dim r2 = ((-Math.Sqrt(preRoot)) - b) / (2 * a)
Return New Tuple(Of Double, Double)(r1, r2)
End If
End Function
End Class
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