Dot Product In Java

Chapter: Math Class Last Updated: 04-05-2016 18:36:57 UTC

Program:

            /* ............... START ............... */
                
public class JavaDotProduct {

	public static void main(String[] args) {

		double[] a = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };
		double[] b = { 10, 9, 8, 7, 6, 5, 4, 3, 2, 1 };

		System.out.println(dotProduct(a, b));
	}

	public static double dotProduct(double[] a, double[] b) {
		double sum = 0;
		for (int i = 0; i < a.length; i++) {
			sum += a[i] * b[i];
		}
		return sum;
	}
}

                /* ............... END ............... */
        

Output

220.0

Tags

Dot Product, Java, Math

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