Cybernova

encom-agenda asked: If you could program anything possible, what would you program and why?

I would absolutely code the functions of a robotic probe aimed at researching Enceladus, Saturn’s moon. It is speculated that beneath the visible icy striations on the surface, there may in fact be liquid water underneath!

Whilst sifting through old documents this evening, I stumbled across something from back when I was a little baby coder, the first program I ever wrote over a decade ago! Precious! 

//Hannah Noble

import java.util.Scanner;

public class Ex1

{

public static void main (String[] args)

{

   double ax, ay, az, bx, by, bz, cx, cy, cz;

   Scanner keys = new Scanner(System.in);

   System.out.println(“Enter x for point A:”);

   ax = keys.nextDouble();

   System.out.println(“Enter y for point A:”);

   ay = keys.nextDouble();

   System.out.println(“Enter z for point A:”);

   az = keys.nextDouble();

   System.out.println(“Enter x for point B:”);

   bx = keys.nextDouble();

   System.out.println(“Enter y for point B:”);

   by = keys.nextDouble();

   System.out.println(“Enter z for point B:”);

   bz = keys.nextDouble();

   System.out.println(“Enter x for point C:”);

   cx = keys.nextDouble();

   System.out.println(“Enter y for point C:”);

   cy = keys.nextDouble();

   System.out.println(“Enter z for point C:”);

   cz = keys.nextDouble();

   double vx = (bx - ax), vy = (by - ay), vz = (bz - az);

   double wx = (cx - ax), wy = (cy - ay), wz = (cz - az);

   double nx = (vy * wz - wy * vz);

   double ny = (wx * vz - vx * wz);

   double nz = (vx * wy - wx * vy);

   double vn = (vx * nx + vy * ny + vz * nz);

   double wn = (wx * nx + wy * ny + wz * nz);

   System.out.println(“B-A is (” + vx + “, ” + vy + “, ” + vz + “)” );

   System.out.println(“C-A is (” + wx + “, ” + wy + “, ” + wz + “)” );

   System.out.println(“N is (” + nx + “, ” + ny + “, ” + nz + “)” );

   System.out.println(“dot product of B-A and N is ” + vn);

   System.out.println(“dot product of C-A and N is ” + wn);

}

}