1. W

    Digraph and linked list

    Can anyone explain this? How to get head, tail, vert and next?
  2. Deadstar

    Prove n is prime (linked to Fermats little theorem)

    Show that n is prime iff a^{n-1} ≡ 1( \textrm{mod} n) for 1 \leq a \leq n-1. => Fermats little theorem. <= (Wondering) Perhaps show that \phi(n) = n-1 but if this is the case I would need a way to start.
  3. G

    Linked probabilities

    Hi everyone, My question seems to be easy, but I can't solve it... Here are three random variables : - X ~ N(0,sigma_x) : normal distribtution with mean = 0 and variance = sigma_x² - Y ~ N(0,sigma_y) - C ~ N(0,1) How can the following probability be calculated : Pr { X+C<a et Y+C<b }...
  4. R

    Coordinates of linked equidistant points on R3

    Hi everyone... This is my first post here. I hope someone can give me some light on this. I've been scratching my head with this for a few weeks. I need to find the coordinates of 3 points: {P1 = (x1, y1, z1)} {P2 = (x2, y2, z2)} {P3 = (x3, y3, z3)} These points are linked to 3 other points...
  5. C

    [SOLVED] Golden Number linked to 666

    Golden Number linked to 666 Formal Proof needed Hello, While working on my websites on 666 myth ( French= ) and on Isomorphous Triplets ( ) I have found recently direct...