trilateration

I want to find the coordinate of an unknown node which lie somewhere in the space which has its reference distance away from 3 or more nodes which all of them have known coordinate. This problem is exactly like Trilateration as described here Trilateration . However, I don't understand the part about "Preliminary and final computations" (refer to the wikipedia site). I don't get where I could find P1, P2 and P3 just so I can put to those equation? Thanks Trilateration is the process of finding the center of the area of intersection of three spheres. The center point and radius of each of the

I have a little problem... Does anyone knows about how can i implement this? I need a method in java like this: public /*COORDINATE OBJECT*/ getTrilaterationPointBetween( /*COORDINATE OBJECT*/ coordinate1, double distance1, /*COORDINATE OBJECT*/ coordinate2, double distance2, /*COORDINATE OBJECT*/ coordinate3, double distance3){ //MAGIC return /*COORDINATE OBJECT*/; } In practice this method will receive 3 coordinates and the distance between "myLocation" with one of them... I need the algorithm of the Trilateration!! I did some searches and made some tests and the results are driving me into

I am writing some code to participate in an AI challenge. The main objective for the AI challenge is to take a simulated robot and navigate it through a maze to a destination zone. The secondary objective which is optional is to find a recharger placed in the maze at an unknown location. This is all done in a 2D grid. My program can call a method to get a distance measurement from the recharger. So using trilateration I should be able to locate the recharger by calling this method, recording my ai's current position and the distance the recharger is away from that point 3 times over. I found