28 lines
817 B
Java
28 lines
817 B
Java
import java.util.ArrayList;
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import java.util.function.Function;
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public class FirstClass{
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public static void main(String... arguments){
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ArrayList<Function<Double, Double>> functions = new ArrayList<>();
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functions.add(Math::cos);
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functions.add(Math::tan);
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functions.add(x -> x * x);
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ArrayList<Function<Double, Double>> inverse = new ArrayList<>();
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inverse.add(Math::acos);
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inverse.add(Math::atan);
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inverse.add(Math::sqrt);
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System.out.println("Compositions:");
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for (int i = 0; i < functions.size(); i++){
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System.out.println(functions.get(i).compose(inverse.get(i)).apply(0.5));
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}
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System.out.println("Hard-coded compositions:");
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System.out.println(Math.cos(Math.acos(0.5)));
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System.out.println(Math.tan(Math.atan(0.5)));
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System.out.println(Math.pow(Math.sqrt(0.5), 2));
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}
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}
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