Let P1, P2, be given points in three-space. Find P so that |P1 - P| + |P2 - P| is the least.

let p1(a1,b1,c1);p2(a2,b2,c2). let p(x,y,z) tree points of the space i suppose we are in an eucludian vectors space. let f: R3 → N, (x,y,z)→ sqrt{sqr(a1-x),sqr(b1-y),sqr(c1-z)} + sqrt{sqr(a2-x),sqr(b2-y),sqr(c2-z)} . therfore you can studie this function in or order to see the minimals of this function using jacobian matrix of this function. i guess you know this process. for further informations contact me on this address siguian@hotmail.com . execuse me for my english it's very poor.
see you!

=== Original Message ===
Let P1, P2, be given points in three-space. Find P so that |P1 - P| + |P2 - P| is the least.

let p1(a1,b1,c1);p2(a2,b2,c2). let p(x,y,z) tree points of the space i suppose we are in an eucludian vectors space. let f: R3 → N, (x,y,z)→ sqrt{sqr(a1-x)+sqr(b1-y)+sqr(c1-z)} + sqrt{sqr(a2-x)+sqr(b2-y)+sqr(c2-z)} . therfore you can studie this function in or order to see the minimals of this function using jacobian matrix of this function. i guess you know this process. for further informations contact me on this address siguian@hotmail.com . execuse me for my english it's very poor. see you! === Original Message === let p1(a1,b1,c1);p2(a2,b2,c2). let p(x,y,z) tree points of the space i suppose we are in an eucludian vectors space. let f: R3 → N, (x,y,z)→ sqrt{sqr(a1-x),sqr(b1-y),sqr(c1-z)} + sqrt{sqr(a2-x),sqr(b2-y),sqr(c2-z)} . therfore you can studie this function in or order to see the minimals of this function using jacobian matrix of this function. i guess you know this process. for further informations contact me on this address siguian@hotmail.com . execuse me for my english it's very poor.
see you!

=== Original Message ===
Let P1, P2, be given points in three-space. Find P so that |P1 - P| + |P2 - P| is the least.