private static void NUnknownChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
LinearEquationVM vm = (LinearEquationVM)d;
Nullable <int> newVal = (Nullable <int>)e.NewValue;
if (newVal.HasValue)
{
vm.RebuildCoefficientMatrix();
}
}
public LinearEquationView()
{
InitializeComponent();
_vm = base.DataContext as LinearEquationVM;
}