using System; delegate double Function(double x); class Multiplier { double factor; public Multiplier(double factor) { this.factor = factor; } public double Multiply(double x) { return x * factor; } } class Test { static double Square(double x) { return x * x; } static double[] Apply(double[] a, Function f) { double[] result = new double[a.Length]; for (int i = 0; i < a.Length; i++) result[i] = f(a[i]); return result; } static void Main() { double[] a = {0.0, 0.5, 1.0}; double[] squares = Apply(a, Square); double[] sines = Apply(a, Math.Sin); Multiplier m = new Multiplier(2.0); double[] doubles = Apply(a, m.Multiply); } }
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