Showing posts from August, 2012

Linear equations task

When we graduated that does not mean we should stop learning, this is what at least I believe. These days after graduation I worked on some projects, below is one of them:

This was a program I created after university to keep my skills, up-to-date.
As I am a passionate Mathematical, I created a program which allowed me to find out “determinant” of the 3x3 matrix coefficients and also find whether the matrix has any solution. In other word, I found out whether this matrix has any dependent or independent row. I used many Array, ArrayList, double and other primitive types to accomplish this program.

You can download the code here. Below is small part of code.

import; import java.text.DecimalFormat; import java.util.ArrayList; import java.util.Scanner; /** * * @author Mehdi Dana * @date 25/07/2012 * */ public class MathDana { /** * @param args * @throws IOException */ // round a double value public static double roundTwoDecimals(double d) { Dec…