Conditional operator and Math calculation

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using System;
class ConditionalOp
{
    static double sinc(double x)
    {
        return x != 0.0 ? Math.Sin(x) / x : 1.0;
    }

    static void Main()
    {
        Console.WriteLine(sinc(0.2));
        Console.WriteLine(sinc(0.1));
        Console.WriteLine(sinc(0.0));
    }
}